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  2. Recycling by product - Wikipedia

    en.wikipedia.org/wiki/Recycling_by_product

    Plastic recycling is the processing of plastic waste into other products. [27] [28] [29] Recycling can reduce dependence on landfill, conserve resources and protect the environment from plastic pollution and greenhouse gas emissions. [30] [31] Recycling rates lag behind those of other recoverable materials, such as aluminium, glass and paper.

  3. Recycling - Wikipedia

    en.wikipedia.org/wiki/Recycling

    This is an accepted version of this page This is the latest accepted revision, reviewed on 10 December 2024. Converting waste materials into new products This article is about recycling of waste materials. For recycling of waste energy, see Energy recycling. "Recycled" redirects here. For the album, see Recycled (Nektar album). The three chasing arrows of the universal recycling symbol ...

  4. Plastic recycling - Wikipedia

    en.wikipedia.org/wiki/Plastic_recycling

    Plastic recycling is the processing of plastic waste into other products. [1] [2] [3] Recycling can reduce dependence on landfill, conserve resources and protect the environment from plastic pollution and greenhouse gas emissions. [4] [5] Recycling rates lag behind those of other recoverable materials, such as aluminium, glass and paper.

  5. By-product - Wikipedia

    en.wikipedia.org/wiki/By-product

    The International Energy Agency (IEA) defines by-product in the context of life-cycle assessment by defining four different product types: "main products, co-products (which involve similar revenues to the main product), by-products (which result in smaller revenues), and waste products (which provide little or no revenue)." [4]

  6. Closed-loop recycling - Wikipedia

    en.wikipedia.org/wiki/Closed-loop_recycling

    By reducing the production and use of raw materials, closed-loop recycling minimizes harm to the environment and discourages resource depletion. [5] In contrast, open-loop recycling is the process by which a product is recycled but has to be mixed with raw materials to become a new product, typically leading to downcycling. [1]

  7. Waste - Wikipedia

    en.wikipedia.org/wiki/Waste

    Waste is any substance discarded after primary use, or is worthless, defective and of no use. A by-product, by contrast is a joint product of relatively minor economic value. A waste product may become a by-product, joint product or resource through an invention that raises a waste product's value above zero.

  8. Waste valorization - Wikipedia

    en.wikipedia.org/wiki/Waste_valorization

    Waste valorization, beneficial reuse, beneficial use, value recovery or waste reclamation [1] is the process of waste products or residues from an economic process being valorized (given economic value), by reuse or recycling in order to create economically useful materials.

  9. Upcycling - Wikipedia

    en.wikipedia.org/wiki/Upcycling

    Venice Biennale installation by MaƂgorzata Mirga-Tas (2022) - artistic upcycling of old textile materials. While recycling usually means the materials are remade into their original form, e.g., recycling plastic bottles into plastic polymers, which then produce plastic bottles through the manufacturing process, upcycling adds more value to the materials, as the name suggested.