The past 50 years have seen the world’s resource use more than triple while the global population doubled.[128][129] This is the main driver of the current triple planetary crisis. In fact, resource use represents half of total greenhouse gas (GHG) emissions, more than 90 percent of land-related biodiversity loss and water stress, and a third of health-related pollution impacts.[130] This section explores how technology and innovation, from simple water fountains to digital solutions, can support a transformational shift in how we produce, consume and dispose of materials.

Proven technologies  

  • Architect and his client looking at the hologram of a house project over a tablet computer. The client is reviewing his future house layout Note to inspector: I am the author of the building project Architect and his client looking at the hologram of a house project over a tablet computer. The client is reviewing his future house layout Note to inspector: I am the author of the building project

    Demand management: digital tool for climate-smart design

    Design for Manufacture and Assembly (DfMA) is a set of design principles traditionally used in the automotive industry and for consumer…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Demand management: digital tool for climate-smart design

    Dassault Systemes
    Architect and his client looking at the hologram of a house project over a tablet computer. The client is reviewing his future house layout Note to inspector: I am the author of the building project
    Getty Images /© Warchi

    Design for Manufacture and Assembly (DfMA) is a set of design principles traditionally used in the automotive industry and for consumer products. It is now increasingly being adopted by construction contractors. The approach focuses on designing for ease of assembling and disassembling components, with the co-benefit of reduced waste generation. Dassault Systemes offers architects, engineers and contractors a suite of digital tools to support them in designing for material efficiency via its 3DEXPERIENCE platform. For instance, the platform enables the creation of virtual twins to test ideas and real-life scenarios allowing design iteration before construction takes place. The software was used to design Brock Commons Tallwood House, the world’s tallest mass-timber building in 2016.

    • Contracting type: For sale/service
    • Technology level: High
    • Country of origin: France
    • Availability: Worldwide
  • Green water bottle refill station set against a mesh wire fence outdoors. Convenient access to clean drinking water while enjoying nature. Green water bottle refill station set against a mesh wire fence outdoors. Convenient access to clean drinking water while enjoying nature.

    Demand management: public drinking water fountains

    The idea of public drinking fountains dates back thousands of years. Cities that provide free drinking water through drinking water fountains…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Demand management: public drinking water fountains

    Elkay
    Green water bottle refill station set against a mesh wire fence outdoors. Convenient access to clean drinking water while enjoying nature.
    Getty Images /© Ekaterina Chizhevskaya

    The idea of public drinking fountains dates back thousands of years. Cities that provide free drinking water through drinking water fountains notice a significant reduction in plastic waste. Over time, technology has improved the accessibility and sanitary conditions of public water fountains. Elkay’s bottle-refilling stations include features such as antimicrobial plastic components and hands-free operation.

    • Contracting type: For sale
    • Technology level: Medium
    • Country of origin: United States
    • Availability: Worldwide
  • Close up of hand with long sleeve red blue stripe shirt pressing button of drinking water filling station at the Airport to refill red insulated reusable water bottle. Close up of hand with long sleeve red blue stripe shirt pressing button of drinking water filling station at the Airport to refill red insulated reusable water bottle.

    Demand management: purified water refill stations

    The Waterpod is a self-service purified drinking water refill dispenser for use in supermarkets and grocery stores. While the dispensers are…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Demand management: purified water refill stations

    I-Drop
    Close up of hand with long sleeve red blue stripe shirt pressing button of drinking water filling station at the Airport to refill red insulated reusable water bottle.
    Getty Images /© Jatuporn Tansirimas

    The Waterpod is a self-service purified drinking water refill dispenser for use in supermarkets and grocery stores. While the dispensers are connected to the main water supply, the in-built filtering consists of several layers including nanomesh technology, ultraviolet sterilization, activated carbon and alkaline cartridge mineralization. The design allows users to buy or dispense purified water using both reusable bottles and larger water containers for household consumption. An internet of things device enables timely changing of the filters.

    • Contracting type: For sale/service
    • Technology level: Medium
    • Country of origin: South Africa
    • Availability: Africa
  • Young woman filling natural biodegradable household chemical product from container dispenser in zero waste plastic free store. Dispensers for detergents, shampoo, soap, conditioner. Young woman filling natural biodegradable household chemical product from container dispenser in zero waste plastic free store. Dispensers for detergents, shampoo, soap, conditioner.

    Demand management: vending machines for consumer products in reusable containers

    Algramo is a Chilean enterprise that offers small quantities of bulk products in reusable containers. Since starting up in 2019, more than 2,000…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Demand management: vending machines for consumer products in reusable containers

    Algramo
    Young woman filling natural biodegradable household chemical product from container dispenser in zero waste plastic free store. Dispensers for detergents, shampoo, soap, conditioner.
    Getty Images /© Space_Cat

    Algramo is a Chilean enterprise that offers small quantities of bulk products in reusable containers. Since starting up in 2019, more than 2,000 stores have installed their vending machines, reaching over 350,000 customers. The vending machines enable customers to purchase household essentials in desired quantities dispensed into reusable containers. Customers save up to 40 percent by buying products in small quantities at bulk prices, which is an important incentive for minimizing the purchase of products in sachets and other single-use plastics.

    • Contracting type: For sale/service
    • Technology level: Medium
    • Country of origin: Chile
    • Availability: Chile
  • block-making machine for construction, using stabilised soil cement blocks or compressed earth blocks block-making machine for construction, using stabilised soil cement blocks or compressed earth blocks

    Demand management: interlocking bricks reduce demand for cement and mortar

    Hydraform is a South African manufacturer of brick- and block-making machines for construction, using stabilized soil cement blocks or compressed…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Demand management: interlocking bricks reduce demand for cement and mortar

    Hydraform
    block-making machine for construction, using stabilised soil cement blocks or compressed earth blocks
    © Hydraform

    Hydraform is a South African manufacturer of brick- and block-making machines for construction, using stabilized soil cement blocks or compressed earth blocks. The blocks can be constructed on site, using locally available materials. The machines enable bricks and blocks to be hydraulically compressed to form interlocking blocks, which reduces the need for mortar joints, saving costs and emissions.

    • Contracting type: For sale
    • Technology level: Low/medium
    • Country of origin: South Africa
    • Availability: Worldwide
  • Digital tool for calculating the climate impact of building with wood Digital tool for calculating the climate impact of building with wood

    Material substitution: digital tool for calculating the climate impact of building with wood

    Substituting wood for conventional building materials can significantly reduce emissions – if done right. In order to scale these practices,…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Material substitution: digital tool for calculating the climate impact of building with wood

    Ruhr-Universität Bochum
    Digital tool for calculating the climate impact of building with wood
    © RUB, Roberto Schirdewahn

    Substituting wood for conventional building materials can significantly reduce emissions – if done right. In order to scale these practices, researchers at the Ruhr-Universität Bochum, Germany have recently developed a web-based GIS tool, called the Holzbau-GIS system, to help municipalities and local authorities estimate the GHG reduction and carbon storage potential of building and renovating with wood [180].

    • Contracting type: For collaboration
    • Technology level: Medium
    • Country of origin: Germany
    • Availability: Worldwide
  • Ecco Friendly Sustainable Adobe Mud Bricks for Green Building Ecco Friendly Sustainable Adobe Mud Bricks for Green Building

    Material substitution: locally manufactured construction materials in Cameroon

    The Local Material Promotion Authority (MIPROMALO) promotes the use of locally manufactured materials and the development of innovative…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Material substitution: locally manufactured construction materials in Cameroon

    MIPROMALO
    Ecco Friendly Sustainable Adobe Mud Bricks for Green Building
    Getty Images /© ivanastar

    The Local Material Promotion Authority (MIPROMALO) promotes the use of locally manufactured materials and the development of innovative materials for construction in Cameroon. Among the products they provide are compressed earth blocks, fired clay bricks and roof tiles. By favoring these materials over resource-intensive alternatives, the carbon footprint associated with transportation and manufacturing processes is reduced.

    • Contracting type: For sale
    • Technology level: Low
    • Country of origin: Cameroon
    • Availability: Cameroon
  • A Low Carbon Synthesis Technology for Natural Organic Material PHA A Low Carbon Synthesis Technology for Natural Organic Material PHA

    Material substitution: PHA-based bioplastics combining the use of plant oil and CO2

    Bluepha develops biodegradable alternatives to petroleum-derived plastic products ranging from packaging to agricultural materials. The…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Material substitution: PHA-based bioplastics combining the use of plant oil and CO2

    Bluepha Co. Ltd.
    A Low Carbon Synthesis Technology for Natural Organic Material PHA
    © Bluepha

    Bluepha develops biodegradable alternatives to petroleum-derived plastic products ranging from packaging to agricultural materials. The technology utilizes organic feedstock such as starch, plant oil and sugarcane in a microbial fermentation process to produce a biodegradable polymer known as PHA (polyhydroxyalkanoate). Bluepha’s specific type of PHA, made through their patented Biohybrid™ technology, is also capable of carbon fixation in the production process.

    • Contracting type: For sale/service
    • Technology level: High
    • Country of origin: China
    • Availability: Worldwide
  • Scraps of cut fabric. Close-up of fabric parts. recycle fabric. Scraps of cut fabric. Close-up of fabric parts. recycle fabric.

    Waste management: mechanical recycling of textile stock

    Weturn purchases unsold textile stock and recycles the textiles into new fabric, preventing the incineration of the material and displacing…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Waste management: mechanical recycling of textile stock

    Weturn
    Scraps of cut fabric. Close-up of fabric parts. recycle fabric.
    Getty Images /© pamirc

    Weturn purchases unsold textile stock and recycles the textiles into new fabric, preventing the incineration of the material and displacing virgin material production. Raw materials such as cotton, wool, cashmere and mixed materials can be recycled through mechanical recycling if the synthetic fiber content is less than 20 percent. The fabric is collected and shredded then spun, weaved or knitted into new products.

    • Contracting type: Service
    • Technology level: Medium
    • Country of origin: France
    • Availability: France
  • Little boy putting plastic bottles to the automatic recycling machine that is able to dispense refunds Little boy putting plastic bottles to the automatic recycling machine that is able to dispense refunds

    Waste management: reverse vending machines

    TOMRA provides various reverse vending machines for outlets ranging from small stores to large supermarkets. The machines provide an automated…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Proven technologies

    Waste management: reverse vending machines

    TOMRA Systems ASA
    Little boy putting plastic bottles to the automatic recycling machine that is able to dispense refunds
    Getty Images /© Shella Hablizel

    TOMRA provides various reverse vending machines for outlets ranging from small stores to large supermarkets. The machines provide an automated method for collecting, sorting and handling the return of cans, plastic and glass bottles and crates through more than 80,000 installations across more than 60 markets. The instant deposit received for each container recycled provides financial motivation for consumers to continue bringing back the containers. In many countries, such deposit return schemes have become a routine part of community life and systematically contribute to climate mitigation by increasing the number of refillable products on the market and promoting high-quality closed-loop recycling, thus reducing reliance on virgin materials. In Scotland, for example, a deposit return scheme for cans and bottles is estimated to reduce GHG emissions by 160,000 tonnes of CO2 per year (equivalent to taking 85,000 cars off the road).[181]

    • Contracting type: For sale/service
    • Technology level: Medium
    • Country of origin: Norway
    • Availability: Worldwide

Frontier technologies  

  • Reusable waste from old houses and buildings Reusable waste from old houses and buildings

    Demand management: digital material passports for increased circularity

    Loopfront’s digital platform and surveying tool enables new life and value from used building materials and interiors. The tool allows users to…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Demand management: digital material passports for increased circularity

    Loopfront
    Reusable waste from old houses and buildings
    © HildaWeges

    Loopfront’s digital platform and surveying tool enables new life and value from used building materials and interiors. The tool allows users to quickly map out what they already have and what can be reused. The platform offers a material overview and “material passport” for every product, including specifications and documentation. There is also the possibility to automatically generate reports of financial savings and CO2 reductions.

    • Contracting type: For collaboration
    • Technology level: Medium
    • Country of origin: Norway
    • Availability: Norway
  • Concept big data processing center, cloud database, server energy station future. Concept big data processing center, cloud database, server energy station future.

    Demand management: blockchain-enabled construction project management tool

    Reuse and recycling of construction and demolition waste relies on a coordinated supply chain and strong stakeholder collaboration. The DigiBuild…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Demand management: blockchain-enabled construction project management tool

    DigiBuild
    Concept big data processing center, cloud database, server energy station future.
    Getty Images /© NatalyaBurova

    Reuse and recycling of construction and demolition waste relies on a coordinated supply chain and strong stakeholder collaboration. The DigiBuild project management tool enables an overview of the construction project and automates the process of finding, ordering, tracking and managing materials. A key element of the blockchain-enabled software is a construction management and central data storage platform. It has built-in workflow approvals and audit trails providing a material visibility overview.

    • Contracting type: For sale/service
    • Technology level: High
    • Country of origin: United States
    • Availability: Worldwide
  • Ceramic Tiles. Tiler placing ceramic wall tile in position over adhesive with lash tile leveling system  Ceramic Tiles. Tiler placing ceramic wall tile in position over adhesive with lash tile leveling system 

    Demand management: upcycling industrial by-products into high-value ceramic tiles

    Seramic recycles industrial solid waste such as sludge, ceramic waste and ashes into new products. Currently considered low-value by-products,…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Demand management: upcycling industrial by-products into high-value ceramic tiles

    Seramic Materials
    Ceramic Tiles. Tiler placing ceramic wall tile in position over adhesive with lash tile leveling system 
    Getty Images /© cnikola

    Seramic recycles industrial solid waste such as sludge, ceramic waste and ashes into new products. Currently considered low-value by-products, these materials are otherwise consigned to landfills or sold as aggregates for roads and cement. Upcycling the waste into more high-value ceramic products, such as floor and wall tiles or for use in thermal storage systems, saves energy and helps displace waste from landfills. The patented recycling process is under continuous development and new applications for its products are currently being explored.

    • Contracting type: For sale
    • Technology level: Medium
    • Country of origin: United Arab Emirates
    • Availability: Worldwide
  • Tiny bits of recycled plastic in a bins in trash management facility in Ghana. They are colorful chips in giant trash bins, in a recycling center. Tiny bits of recycled plastic in a bins in trash management facility in Ghana. They are colorful chips in giant trash bins, in a recycling center.

    Waste management: app-based plastic waste collection and recycling system

    Coliba Ghana is a startup offering plastic recovery, collection and recycling services through tailored digital solutions integrated with a…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Waste management: app-based plastic waste collection and recycling system

    Coliba Ghana Ltd
    Tiny bits of recycled plastic in a bins in trash management facility in Ghana. They are colorful chips in giant trash bins, in a recycling center.
    Getty Images /© Will Carmack

    Coliba Ghana is a startup offering plastic recovery, collection and recycling services through tailored digital solutions integrated with a network of local waste pickers. A digital app combined with a simple SMS service enables clients to request collection of waste. The company’s facilities and recycling centers then wash and crush the plastic material before packaging it into bales ready for mechanical recycling. Here, the plastic is shredded into flakes and processed into pellets to be used in new plastic products, displacing the demand for virgin materials.

    • Contracting type: Service
    • Technology level: Medium
    • Country of origin: Ghana
    • Availability: West Africa
  • Environmental conservation technology and approaching global sustainable ESG Environmental conservation technology and approaching global sustainable ESG

    Waste management: digital waste detection tool

    The iNex Sourcing solution is a predictive waste detection tool that enhances the supply chain overview in sectors such as biogas, construction,…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Waste management: digital waste detection tool

    iNex Circular
    Environmental conservation technology and approaching global sustainable ESG
    Getty Images /© bymuratdeniz

    The iNex Sourcing solution is a predictive waste detection tool that enhances the supply chain overview in sectors such as biogas, construction, solar and recycling. For the recycling sector, the tool enables users to map, source and trace materials. It also helps identify suppliers and partners to connect, for instance, local waste producers and recyclers. The tool permits calculation and visualization of environmental impact in real time.

    • Contracting type: Service
    • Technology level: Medium
    • Country of origin: France
    • Availability: France
  • A biobased thermoplastic made from 100% unsorted landfill-destined waste A biobased thermoplastic made from 100% unsorted landfill-destined waste

    Waste management: thermoplastic from unsorted landfill waste

    UBQ™ is an eco-friendly thermoplastic produced entirely from unsorted household waste, comprising both organic and non-recyclable materials. It…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Waste management: thermoplastic from unsorted landfill waste

    UBQ Material
    A biobased thermoplastic made from 100% unsorted landfill-destined waste
    © UBQ Materials

    UBQ™ is an eco-friendly thermoplastic produced entirely from unsorted household waste, comprising both organic and non-recyclable materials. It can integrate seamlessly into current manufacturing methods and has already been adopted in various sectors as a substitute for oil-based resins. Manufacturers utilizing the technology are effectively redirecting waste away from landfills and incineration, thus diminishing the overall carbon impact of their final products and actively promoting a circular economy. By reassembling the basic components of the waste, such as lignin, cellulose, fibers and sugars, while incorporating residual plastics, UBQ offers a sustainable alternative to conventional methods. This process operates at lower temperatures and requires less energy, and in 2021 UBQ achieved 100 percent energy self-sufficiency through the company’s solar array.

    • Contracting type: For sale/service
    • Technology level: High
    • Country of origin: Israel
    • Availability: Worldwide
  • Waste management: advanced water-based recycling system for mixed waste

    Fiberight’s HYDRACYCLE™ technology segregates and recovers material such as paper, card, plastics, metals and food waste from mixed…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Frontier

    Waste management: advanced water-based recycling system for mixed waste

    Fiberight Ltd

    Fiberight’s HYDRACYCLE™ technology segregates and recovers material such as paper, card, plastics, metals and food waste from mixed residual-waste streams, using water as a separation medium within a closed-loop water-recycling process. The recovered materials are upgraded into high-value market-ready products following a valorization process. For instance, plastics are purified and sorted into polymer fractions for onward manufacturing. Paper/card is valorized into bio-based sugars for bio-manufacturing, or utilized in cellulose-based products. The process works with mixed household wastes that are typically burnt or buried. Fiberight’s first UK commercial facility came online in April 2023 in Swansea, Wales, and is processing rejected material from material recovery facilities.

    • Contracting type: For sale/service
    • Technology level: High
    • Country of origin: United Kingdom
    • Availability: United Kingdom, United States

Horizon technologies  

  • Pre-cast hollow concrete slabs using 3D-printed formwork Pre-cast hollow concrete slabs using 3D-printed formwork

    Demand management: 3D-printing mineral foam for complex formwork

    Researchers from ETH Zurich university, Switzerland have developed a system that uses 3D-printed elements to create a pre-cast concrete slab,…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Horizon

    Demand management: 3D-printing mineral foam for complex formwork

    ETH Zurich/FoamWork
    Pre-cast hollow concrete slabs using 3D-printed formwork
    © ETH Zurich

    Researchers from ETH Zurich university, Switzerland have developed a system that uses 3D-printed elements to create a pre-cast concrete slab, which they claim uses 70 percent less material than a conventional slab. The 3D-printed material is made from recyclable mineral foam. The foam is filled into a rectangular mold to create a hollow cell structure before concrete is cast around the foam and left to cure. The hollow cells throughout the slab are reinforced along critical pressure points to create the necessary strength and reduce the amount of concrete needed. Once the hollow slabs are created, the foam can either be left in place as insulation material or recycled to create new formwork. As custom formwork geometries are otherwise wasteful to produce, the 3D-construction of the formwork may make the process more feasible.

    • Contracting type: For collaboration
    • Technology level: Medium
    • Country of origin: Switzerland
    • Availability: N/A
  • An unrecognizable female customer choosing things she wants to buy. An unrecognizable female customer choosing things she wants to buy.

    Material substitution: bio-based and compostable food packaging from cassava starch and banana fibers

    Hya Bioplastics, a startup in Uganda, has developed a bio-based and fully home-compostable food packaging alternative to paper or petroleum-based…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Horizon

    Material substitution: bio-based and compostable food packaging from cassava starch and banana fibers

    Hya Bioplastics
    An unrecognizable female customer choosing things she wants to buy.
    Getty Images /© FreshSplash

    Hya Bioplastics, a startup in Uganda, has developed a bio-based and fully home-compostable food packaging alternative to paper or petroleum-based plastics. The company uses cassava starch – a cheaper alternative to maize – and pulped fibers as their key raw material. The fibers are from the lower part of banana leaves, otherwise treated as waste. Products include a range of food packaging including fruit and vegetable trays, takeaway food boxes and disposable plates. The technology is currently in pilot phase.

    • Contracting type: For sale/collaboration
    • Technology level: Medium
    • Country of origin: Uganda
    • Availability: Uganda
  • Water Hyacinth by the St. Johns river in Central Florida Water Hyacinth by the St. Johns river in Central Florida

    Material substitution: water hyacinth fibers for use as insulation, packaging and wood–plastic composites

    CYNTHIA® is a patented bio-based fiber made from water hyacinth – a common invasive species in many rivers where it blocks sunlight and threatens…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Horizon

    Material substitution: water hyacinth fibers for use as insulation, packaging and wood–plastic composites

    In-Between International
    Water Hyacinth by the St. Johns river in Central Florida
    Getty Images /© Bkamprath

    CYNTHIA® is a patented bio-based fiber made from water hyacinth – a common invasive species in many rivers where it blocks sunlight and threatens aquatic ecosystems. The fiber can be produced in various shapes and sizes making it suitable for several use cases. These include insulation for construction and building applications, packaging and wood–plastic composites. The products such as thermal insulation panels and biodegradable planters have been validated on industrial lines ready for the market launch. 

    • Contracting type: For collaboration
    • Technology level: Medium
    • Country of origin: Belgium
    • Availability: N/A
  • Recycling crushed concrete Recycling crushed concrete

    Waste management: Advanced Dry Recovery (ADR) for on-site concrete recycling

    Researchers from Delft University, the Netherlands are developing a low-cost technology for in-situ recycling of construction and demolition…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Horizon

    Waste management: Advanced Dry Recovery (ADR) for on-site concrete recycling

    C2CA Technology
    Recycling crushed concrete
    Getty Images /© ghornephoto

    Researchers from Delft University, the Netherlands are developing a low-cost technology for in-situ recycling of construction and demolition waste. The aim is to recycle aggregates from concrete for use in new mortar and concrete. Advanced Dry Recovery (ADR) relies on mechanical recycling of concrete while in the moist state. This means energy can be saved by avoiding the need for drying or wet screening the waste. Light contaminants are removed by using kinetic energy to break the bonds between fine particles formed by moisture. Materials are subjected to an acceleration of up to 1,000 G, which separates light materials from heavy ones. A sensor has also been developed to document and monitor the properties of the secondary material and classify the different waste components. The team has now formed a company, C2CA Technology, to build a mobile pilot plant and test the technology.

    • Contracting type: For collaboration
    • Technology level: Medium
    • Country of origin: Netherlands (Kingdom of the)
    • Availability: N/A
  • Heap of old car junk tires, used truck rubbish wheels, industrial garbage in abandoned factory, toned Heap of old car junk tires, used truck rubbish wheels, industrial garbage in abandoned factory, toned

    Waste management: high-value mechanical tire recycling

    Tyre Recycling Solutions create a high-quality rubber powder, TyreXol™, through mechanical recycling of tires. Discarded tires are cut up then…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Horizon

    Waste management: high-value mechanical tire recycling

    Tyre Recycling Solutions
    Heap of old car junk tires, used truck rubbish wheels, industrial garbage in abandoned factory, toned
    Getty Images /© DedMityay

    Tyre Recycling Solutions create a high-quality rubber powder, TyreXol™, through mechanical recycling of tires. Discarded tires are cut up then pulverized into fine powder using a proprietary water-jet system. The powder is then chemically treated before incorporation into complex polymer mixtures relevant for industries such as construction, automotive and 3D-printing. The material has the ability to alter or improve materials including rubber, polyurethane, plastics, bitumen and concrete. The technology can be part of a greenfield project or added to existing tire recycling facilities.

    • Contracting type: Service
    • Technology level: Medium
    • Country of origin: Switzerland
    • Availability: N/A

Innovation examples

  • Large residential building is under construction. Large residential building is under construction.

    Gaia – largest wooden building in Asia

    Using wood instead of steel and cement in construction could save significant amounts of GHG emissions. Gaia, the largest wooden building in…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Innovation examples

    Gaia – largest wooden building in Asia

    Large residential building is under construction.
    Getty Images /© JohnnyH5

    Using wood instead of steel and cement in construction could save significant amounts of GHG emissions. Gaia, the largest wooden building in Asia, is located at Nanyang Technological University in Singapore. The six-storey development was constructed using mass-engineered timber – a material created by layering and bonding wood to achieve enhanced strength. The technology involves gluing, nailing or doweling wooden products together in layers, resulting in large structural panels. As a certified zero-energy building, the building generates the same amount of energy as it consumes through the use of solar panels, passive ventilation systems and other technologies.

    Note: The climate benefits of using wood as a construction material have recently been disputed, and the claim lacks consensus.[179]

  • online Materials Marketplace online Materials Marketplace

    Austin’s online Materials Marketplace

    The City of Austin, Texas has implemented the Austin Materials Marketplace, an online platform serving as an electronic clearinghouse that…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Innovation examples

    Austin’s online Materials Marketplace

    online Materials Marketplace
    Getty Images /© Bim

    The City of Austin, Texas has implemented the Austin Materials Marketplace, an online platform serving as an electronic clearinghouse that connects businesses seeking to dispose of materials with those in need of such materials. Additionally, the platform incorporates reporting functionality to track trades, measure the value of exchanges and monitor the diversion of materials from landfill. It is developed and managed by the United States Business Council for Sustainable Development and covers a wide range of materials, including construction and demolition materials, plastics, organics and packaging, attracting users from various sectors. Over 500 businesses, institutions and non-profit organizations have already signed up as participants. Notable outcomes include diverting over 400 tonnes of material from landfills and saving over 950 million tonnes of CO2 equivalent emissions.

  • landfill site in South Korea landfill site in South Korea

    Sudokwon landfill site in the Republic of Korea

    The Sudokwon landfill site is a state-of-the art waste treatment facility based in South Korea (Republic of Korea). The site incorporates a…
    Read more

    More...
    WIPO logo
    2. Cities / Material efficiency and sustainable waste management / Innovation examples

    Sudokwon landfill site in the Republic of Korea

    landfill site in South Korea
    © Peter Oksen

    The Sudokwon landfill site is a state-of-the art waste treatment facility based in South Korea (Republic of Korea). The site incorporates a 50 MW power plant fueled by gas collected from the landfill – one of the largest of its kind in the world. The captured methane would otherwise be emitted to the atmosphere as a greenhouse gas. Repurposing the gas for energy supply therefore makes an important contribution to climate mitigation. The facility also produces biogas for fueling buses and hosts a sludge recycling facility. The site covers 14 km2 of land with a daily capacity of around 12,000 tons of waste. The site’s landfill capacity will eventually be used up and a replacement site required for handling more waste. This highlights the important limitations of landfills and the need to move toward a circular approach to waste management. Nevertheless, Sudokwon’s efficient capturing of landfill gases marks an innovative and useful example for landfill climate mitigation.

Emissions from materials are growing rapidly

Construction materials, metals, plastics and wood are essential in building a city. More than half of the world’s urban population lives in cities[131] and urbanization is increasing exponentially…
Read more

Emissions from materials are growing rapidly

Construction materials, metals, plastics and wood are essential in building a city. More than half of the world’s urban population lives in cities[131] and urbanization is increasing exponentially along with material consumption rates. The rapid scaling of electric vehicles, solar panels and wind turbines is also driving up demand for critical raw materials. Material use is expected to double between 2020 and 2050.[132] Exponential growth in production and consumption is seen in all resource types, with some growing faster than others. Plastics, which account for nearly 5 percent of global GHG emissions, [133] are expected to nearly triple by 2060 at the current rate (figure 2.4).[134][135]

The growth in material demand is not only depleting natural resources such as minerals and water, but it nearly doubled the GHG emissions caused by material production from 1995 to 2015 (figure 2.5). The rapid growth in demand is thus offsetting policy and technology measures to reduce emissions from production and manufacturing processes. Therefore, material demand management is essential for meaningful climate action (box 2.2). Many technologies are responding to this challenge, and as is often the case, they start by supporting climate-smart design.

Figure 2.5 Emissions (in gigatons) caused by material production as a share of global emissions, 1995 versus 2015[136]
Source: International Resource Panel, 2020.

 
Read less

Climate-smart design for circular cities

Designing lighter products reduces the embodied carbon in assets such as homes and cars. Using less steel in the loadbearing structure of buildings is one example. Another is replacing some of the steel in vehicles with aluminum. Aluminum has a…
Read more

Climate-smart design for circular cities

Designing lighter products reduces the embodied carbon in assets such as homes and cars. Using less steel in the loadbearing structure of buildings is one example. Another is replacing some of the steel in vehicles with aluminum. Aluminum has a higher carbon footprint than steel but overall emissions are reduced through fuel-savings gained by having a lighter car.[137] These so-called lightweighting solutions must not come at the expense of durability or recyclability of a product.

There is growing interest in applying proven tools such as computer-aided design (CAD) and building information modeling (BIM) for climate-smart design.[138] For instance, BIM is used in design processes to locate areas of medium and low structural load that allow for lightweighting without losing functionality. The technology can also produce a virtual representation of a building to see how prefabricated components and modules can best fit together. This supports material use optimization and waste reduction.[139]

Climate-smart design also means considering materials’ end-of-life stage and the design of products for easy and affordable reuse and recycling. For instance, transparent and unmixed plastic is easier to recycle than black plastic products that combine multiple material types. Bolting construction materials together instead of welding allows for easier and less destructive material recovery at the end-of-life stage.
Read less

Reviving natural building materials

Wood, rammed earth and adobe bricks made from materials such as mud are re-emerging as natural alternatives to carbon-intensive steel and cement in various parts of the world, depending on the climatic zone. While these are traditional…
Read more

Reviving natural building materials

Wood, rammed earth and adobe bricks made from materials such as mud are re-emerging as natural alternatives to carbon-intensive steel and cement in various parts of the world, depending on the climatic zone. While these are traditional solutions, they are easily overlooked in the face of rapid urbanization and restrictive building codes. A common barrier to uptake of low-carbon and local materials is the inability to produce them at scale. Limited availability of demonstration projects and a lack of supportive regulation further inhibits their adoption.[140][141] However, technological developments and growing interest in state-of-the-art advanced manufacturing methods can enable a modern approach to the use of such materials in cities.[142][143]

Wooden high-rise constructions are increasing in number thanks to advances in engineered wood, such as cross-laminated timber and glued laminated timber.[144] Reinforced timber beams and modern adhesive technologies have helped overcome barriers to tensile strength. Additionally, moisture monitoring and non-flammable surface materials have increased resistance to moisture damage and fire. However, it is important to note that the climate benefits of using wood as a construction material have recently been disputed, and the right conditions must be ensured to limit associated emissions.[145]
Read less

Innovations in material sustainability

Material science innovation is also leading to eco-friendly materials, sustainable building materials and the valorization of waste for new uses. This applies to a range of sectors, including for construction material, proteins, fertilizers and…
Read more

Innovations in material sustainability

Material science innovation is also leading to eco-friendly materials, sustainable building materials and the valorization of waste for new uses. This applies to a range of sectors, including for construction material, proteins, fertilizers and plastics. In the case of plastics, biodegradable and bio-based plastics have been championed for some time. Their production still represents less than 1 percent of all plastic but they are expected to witness an annual growth rate of 14 percent between 2022 and 2027.[146]

Notably, many institutions including the United Nations Environment Programme (UNEP) now highlight the fact that biodegradable plastic items often do not degrade in the environment but require special composting facilities. And while bio-based plastics can be a good alternative if there is appropriate collection and recycling infrastructure in place, they may not always lead to better outcomes.[147] In any case, material substitution considerations must be guided by life-cycle thinking to understand the trade-offs and overall impact.
Read less

Policies for sustainable waste management

Less than 14 percent of global waste is recycled, mainly due to a lack of waste management infrastructure.[148] While this chapter explores the role of technology and innovation, such…
Read more

Policies for sustainable waste management

Less than 14 percent of global waste is recycled, mainly due to a lack of waste management infrastructure.[148] While this chapter explores the role of technology and innovation, such applications have limited impact on improved collection and sorting if the enabling environment is weak. Primarily, ambitious policies and economic measures such as extended producer responsibility (EPR) schemes are essential to incentivize better waste separation at source by citizens.

In more than 40 countries, mainly in Europe, deposit return schemes have helped increase the recycling rate for glass and plastic, and the number participating is growing.[149] In many countries, the scheme also extends to metal cans. A small fee is added to the price of products such as drinking containers, which is refunded to the consumer when they bring them back to a collection point.
Read less

The digital revolution in waste management

Cities in many developing countries rely on the support of formal or informal waste pickers to sort and collect waste for recycling. In some cities, waste pickers have started to use mobile apps that connect them directly with customers and…
Read more

The digital revolution in waste management

Cities in many developing countries rely on the support of formal or informal waste pickers to sort and collect waste for recycling. In some cities, waste pickers have started to use mobile apps that connect them directly with customers and enable door-to-door collection or organize pick-up points under more sanitary conditions than landfill sites.[150] For municipal waste, optical scanners and robotics are now merging with artificial intelligence (AI) technology to offer efficient screening, identification and separation of waste streams. Hundreds of sorting facilities around the world have already implemented such technologies [151] and Danish researchers recently revealed a near-infrared technology that could distinguish between 12 types of polymers.[152] Geographical information systems (GIS) enable optimization of collection routes in cities. Other innovations such as chemical tracers and digital watermarks are just emerging.

For municipal waste, optical scanners and robotics are now merging with artificial intelligence (AI) technology to offer efficient screening, identification and separation of waste streams. Hundreds of sorting facilities around the world have already implemented such technologies

Beyond municipal waste, advances in automation technologies could also enable easier deconstruction and dismantling of buildings and products in the future.[153][154] While mixed construction and demolition waste is difficult to recover and is often downcycled as aggregate, advances in robotics have shown a positive impact on separation and recycling rates. In the vehicles sector, machine-based vehicle recycling systems can dismantle cars with precision to extract valuable materials. With appropriate investment, many more parts could already be salvaged today, from tires and batteries to plastic bumpers and air conditioning compressors.
Read less

Waste management technologies have varying climate impact

For municipal waste that is not presorted, mechanical and biological treatment (MBT) plants are increasingly recognized for their ability to recover more materials and reduce methane emissions from landfill. At these plants, a mix of…
Read more

Waste management technologies have varying climate impact

For municipal waste that is not presorted, mechanical and biological treatment (MBT) plants are increasingly recognized for their ability to recover more materials and reduce methane emissions from landfill. At these plants, a mix of technologies and biological processes is used to sort out metal, glass and plastics and turn the remaining waste into refuse-derived fuel. For instance, studies have shown that MBT prior to landfilling is one of the most favorable options from a climate impact standpoint, and can be more cost-effective than incineration.[155][156]

Several advances in recycling technologies themselves are also emerging, focusing on hard-to-recycle products such as car tires and wind turbine blades. However, as many of these recycling technologies rely on energy-intensive processes like pyrolysis, the full life-cycle implications need to be considered before they can be viewed as viable from a climate perspective.[157]
Read less

Recycling does not sufficiently address climate change

While several innovative recycling technologies are emerging, numerous studies have shown that recycling can never respond to the growing production of materials fast enough to make a meaningful contribution to climate mitigation. The numbers…
Read more

Recycling does not sufficiently address climate change

While several innovative recycling technologies are emerging, numerous studies have shown that recycling can never respond to the growing production of materials fast enough to make a meaningful contribution to climate mitigation. The numbers simply do not add up. For instance, at 9 percent the current rate of plastics recycling will never catch up with the exponential growth in plastic production. This is particularly problematic from a climate perspective, as more than 60 percent of plastic’s emissions occur during plastic pellet production stage.[158][159][160] Therefore, any meaningful mitigation strategy requires a major shift in terms of investments toward a circular economy, with a particular focus on phasing out single-use and unnecessary plastic production. A circular economy approach would also go beyond recycling to support climate-smart design and material choices, and facilitate collective ownership, repair and reuse.
Read less

Reducing GHG emissions from incineration

Of all the waste generated in the world, around 11 percent is incinerated.[161] This occurs mainly in upper middle-income and high-income countries where waste-to-energy incineration is a common…
Read more

Reducing GHG emissions from incineration

Of all the waste generated in the world, around 11 percent is incinerated.[161] This occurs mainly in upper middle-income and high-income countries where waste-to-energy incineration is a common practice. While waste-to-energy technologies can contribute to global energy supply and address the need for waste management [162], municipal solid waste incinerators themselves are highly polluting.

In fact, incinerators can emit more GHG emissions per unit of electricity produced than any other power source, as they often operate under conditions of low efficiency.[163] Targeting the pressure and temperature of the steam cycle can improve efficiency of incinerators, while better plant capacity design can help reduce the need for imported waste. Yet, typical efficiencies of EU incinerators are as low as 25 percent, compared to 55 percent for combined cycle gas turbine plants.[164]

In developing countries, where municipal waste often contains more organic matter, efficiencies are even lower and air pollutants are a common problem. Here, technologies such as anaerobic digestion – in which microorganisms break down organic matter in the absence of oxygen – are more appropriate options.[165] However, it is expected that modern waste incinerators could be built in some middle-income countries in the near future and China is seeing rapid implementation of the technology.[166]

Carbon capture and storage technologies are now being considered to mitigate the climate impact of incinerators. Meanwhile, countries such as Denmark, where incineration has completely replaced landfills, have embarked on a journey to limit their incineration capacity in order to reach stated climate goals.[167]
Read less

Reducing methane emissions from landfills and open dumps

Globally, around 5 percent of global GHG emissions derive from solid waste treatment and disposal – mainly as methane – from open dumps and landfills without gas capture systems. In fact, landfill waste accounts for around 11 percent…
Read more

Reducing methane emissions from landfills and open dumps

Globally, around 5 percent of global GHG emissions derive from solid waste treatment and disposal – mainly as methane – from open dumps and landfills without gas capture systems. In fact, landfill waste accounts for around 11 percent of global methane emissions.[168]

Satellite-based technologies can now measure site-specific emissions, which can vary greatly between different landfills.[169] Gas drainage and leachate control systems help reduce emissions from landfills caused by the degradation of organic matter into methane and other gases. Bioreactor landfills are a relatively new approach involving recirculation of leachate to support the degradation process of organic waste and increase gas generation and capture in controlled forms. Captured gases can even be used to generate electricity on site.

Satellite-based technologies can now measure site-specific emissions, which can vary greatly between different landfills

However, controlled landfills are almost exclusively found in high- or upper middle-income countries, while 93 percent of waste in low-income countries ends up in open dumps.[170] There have been rehabilitation efforts all over the world. Yet, the handling of open landfills and the environmental and health hazards they pose is a major unsolved challenge that cannot be addressed by the application of technology alone.

Any innovation in the management of open dumps would also need to consider the working conditions and rights of informal waste pickers who earn a daily living by collecting waste. This is particularly relevant considering their major contribution to recycling rates; nearly 60 percent of the world’s recycled plastic is collected by waste pickers.[171]
Read less

The climate justice rationale for material sustainability and efficiency

Emerging economies show the steepest rise in consumption, driven by increased population density and industrialization. However, the per capita material footprint of high-income countries is still around 60 percent higher than upper…
Read more

The climate justice rationale for material sustainability and efficiency

Emerging economies show the steepest rise in consumption, driven by increased population density and industrialization. However, the per capita material footprint of high-income countries is still around 60 percent higher than upper middle-income countries, and more than 13 times the level of low-income countries.[172][173]

Furthermore, material-intensive production is increasingly being outsourced from developed to developing countries.[174] In a global market, more cities are now estimating their GHG emissions based on consumption parameters, with the results pointing to large differences between those considered “producer” cities and “consumer” cities.[175]

Consumption-based emissions are much higher in European and North American cities, while several cities in Asia and Africa have higher sector-based GHG emissions due to the location of manufacturing industries.[176] Therefore, managing material demand and efficiency not only leads to greater overall GHG emission reductions, but also helps balance the responsibility for mitigation efforts more evenly between producers and consumers.

Meanwhile, research shows that the circular economy offers a USD 4.5 trillion economic opportunity and has massive potential for growth generation and job creation

While economic development has historically relied on increasing material demand, the science around dematerializing economic growth is clear and the Intergovernmental Panel on Climate Change (IPCC) clearly refers to demand reduction as a key necessity for staying within the boundaries of what the planet can sustain (box 2.2). Meanwhile, research shows that the circular economy offers a USD 4.5 trillion economic opportunity and has massive potential for growth generation and job creation – while remaining within the planetary boundaries.[177]


Box 2.2 Managing material demand through technology and innovation

The need for sustainable resource management has been recognized in the landmark IPCC report on climate change mitigation. The report refers to the need to “avoid demand for energy, materials, land and water while delivering human well-being-for-all within planetary boundaries”.[178]

Managing demand and ensuring sufficient access to resources relates to many spheres of life, including access to shelter, nutrition, basic amenities, health care, transportation, information, education and public space. Here, the principle of fair consumption of space and resources is central. This further recognizes the need for affluent countries to embrace resource conservation through measures such as better design and circulation of materials, while simultaneously enabling the sustainable growth of developing and emerging economies. The IPCC defines the upper limit of sufficiency as the remaining carbon budget, while a decent living standard defines the minimum level of sufficiency for basic human well-being.

Indeed, technology and innovation play a crucial role in achieving efficiency and shifting to low-carbon fuels and feedstock. However, more recognition is needed of the role of technology and innovation for managing the demand for materials throughout their life cycle.

There is an important distinction to be made here. While technologies that enable efficiency are the result of continuous technological improvements that allow more to be done with less, they do not necessarily consider the planetary boundaries. While efficiency gains are needed, taking demand and sufficiency of materials into consideration goes beyond efforts to support incremental change. It acknowledges strategies that use less material by design, extend product lifetimes, provide more efficient services, and reuse and recycle materials. Here, technology can play a major role. 


 
Read less