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  2. Waste input-output model - Wikipedia

    en.wikipedia.org/wiki/Waste_Input-Output_Model

    Here represents the square matrix of input coefficients, denotes releases (such as emissions or waste) per unit of output or the intervention matrix, stands for the vector of final demand (or functional unit), is the identity matrix, and represents the resulting releases (For further details, refer to the input-output model).

  3. Human waste - Wikipedia

    en.wikipedia.org/wiki/Human_waste

    Human waste (or human excreta) refers to the waste products of the human digestive system, menses, and human metabolism including urine and feces.As part of a sanitation system that is in place, human waste is collected, transported, treated and disposed of or reused by one method or another, depending on the type of toilet being used, ability by the users to pay for services and other factors.

  4. Stripping ratio - Wikipedia

    en.wikipedia.org/wiki/Stripping_ratio

    [1] [2] It is a number or ratio that express how much waste is mined per unit of ore. The units of a stripping ratio can vary between mine types. For example, in coal mining the stripping ratio is commonly referred to as volume/weight. [3], whereas in metal mining, stripping ratio is unitless and is expressed as weight/weight. [2]

  5. Reuse of human excreta - Wikipedia

    en.wikipedia.org/wiki/Reuse_of_human_excreta

    Biogas is an important waste-to-energy resource which plays a huge role in reducing environmental pollution and most importantly in reducing greenhouse gases effect caused by the waste. Utilization of raw material such as human waste for biogas generation is considered beneficial because it does not require additional starters such as ...

  6. Resource recovery - Wikipedia

    en.wikipedia.org/wiki/Resource_recovery

    Resource recovery is using wastes as an input material to create valuable products as new outputs. The aim is to reduce the amount of waste generated, thereby reducing the need for landfill space, and optimising the values created from waste. [1] Resource recovery delays the need to use raw materials in the manufacturing

  7. Material efficiency - Wikipedia

    en.wikipedia.org/wiki/Material_efficiency

    Material efficiency is a description or metric ((Mp) (the ratio of material used to the supplied material)) which refers to decreasing the amount of a particular material needed to produce a specific product. [1] Making a usable item out of thinner stock than a prior version increases the material efficiency of the manufacturing process.

  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. Waste management - Wikipedia

    en.wikipedia.org/wiki/Waste_management

    Waste valorization, beneficial reuse, beneficial use, value recovery or waste reclamation [61] 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.