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  2. Closed-loop recycling - Wikipedia

    en.wikipedia.org/wiki/Closed-loop_recycling

    They are called "closed" because products have a circular life cycle, beginning as raw materials and either being recycled into replacement products, returning to the original raw materials, or being returned to the environment as biodegradable waste. [2] This reduces the amount of (non-biodegradable) waste disposed, as recyclables are ...

  3. Recycling by product - Wikipedia

    en.wikipedia.org/wiki/Recycling_by_product

    Because tires are highly durable and non-biodegradable, they can consume valuable space in landfills. [47] If waste tires are improperly managed they may cause rubber pollution. In 1990, it was estimated that over 1 billion scrap tires were in stockpiles in the United States. As of 2015, only 67 million tires remain in stockpiles. [48]

  4. Waste management - Wikipedia

    en.wikipedia.org/wiki/Waste_management

    Energy recovery from waste is the conversion of non-recyclable waste materials into usable heat, electricity, or fuel through a variety of processes, including combustion, gasification, pyrolyzation, anaerobic digestion, and landfill gas recovery. [51] This process is often called waste-to-energy.

  5. Waste sorting - Wikipedia

    en.wikipedia.org/wiki/Waste_sorting

    Waste sorting is the process by which waste is separated into different elements. [1] Waste sorting can occur manually at the household and collected through curbside collection schemes, or automatically separated in materials recovery facilities or mechanical biological treatment systems.

  6. List of waste types - Wikipedia

    en.wikipedia.org/wiki/List_of_waste_types

    Biodegradable waste; Biomedical waste; Bulky waste; Business waste; Chemical waste; Clinical waste (see Biomedical waste) Coffee wastewater; Commercial waste; Composite waste; Construction and demolition waste (C&D waste) Controlled waste; Demolition waste; Dog waste; Domestic waste; Electronic waste (e-waste) Food waste; Green waste; Grey ...

  7. Materials recovery facility - Wikipedia

    en.wikipedia.org/wiki/Materials_recovery_facility

    A materials recovery facility for the recycling of domestic waste Clean materials recovery facility recycling video. A materials recovery facility, materials reclamation facility, materials recycling facility or multi re-use facility (MRF, pronounced "murf") is a specialized waste sorting and recycling system [1] that receives, separates and prepares recyclable materials for marketing to end ...