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  2. Producer price index - Wikipedia

    en.wikipedia.org/wiki/Producer_price_index

    A producer price index (PPI) is a price index that measures the average changes in prices received by domestic producers for their output. Formerly known as the wholesale price index between 1902 and 1978, the index is made up of over 16,000 establishments providing approximately 64,000 price quotations that the U.S. Bureau of Labor Statistics (BLS) compiles each month to represent thousands ...

  3. Scrap - Wikipedia

    en.wikipedia.org/wiki/Scrap

    Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste , scrap can have monetary value , especially recovered metals , and non-metallic materials are also recovered for recycling.

  4. 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 ...

  5. Recycling by material - Wikipedia

    en.wikipedia.org/wiki/Recycling_by_material

    Iron and steel are the world's most recycled materials, and among the easiest materials to reprocess, as they can be separated magnetically from the waste stream. Recycling is via a steelworks: scrap is either remelted in an electric arc furnace (90-100% scrap), or used as part of the charge in a Basic Oxygen Furnace (around 25% scrap). [20]

  6. Heavy melting steel - Wikipedia

    en.wikipedia.org/wiki/Heavy_melting_steel

    HMS 1 is the term for heavier scrap which has a density of at least 0.7 tons per cubic meter, whereas HMS 2 would be lighter steel scrap Because both grades guarantee a minimum piece thickness – at least 1 ⁄ 4 inch (6.35 mm) for HMS 1, and 1 ⁄ 8 inch (3.175 mm) for HMS 2 – consignments have a high density.

  7. Crumb rubber - Wikipedia

    en.wikipedia.org/wiki/Crumb_rubber

    Contradicting studies have found that the raw source material (automotive tires) contains high levels of polycyclic aromatic hydrocarbons and metals such as zinc which have proven dermal, acute, and long-term health effects. The EPA is (as of fall 2015) investigating the health effects of exposure to crumb rubber and the initial results of this ...

  8. Gypsum recycling - Wikipedia

    en.wikipedia.org/wiki/Gypsum_recycling

    The recycled material is a blend of pre- and post-consumer, wet and dry gypsum waste that is a source of raw material for use in the manufacture of new drywall products. Gypsum Agri-cycle is one of the first companies to recycle drywall in the USA.

  9. Automotive oil recycling - Wikipedia

    en.wikipedia.org/wiki/Automotive_oil_recycling

    Automotive oil recycling involves the recycling of used oils and the creation of new products from the recycled oils, and includes the recycling of motor oil and hydraulic oil. Oil recycling also benefits the environment: [1] increased opportunities for consumers to recycle oil lessens the likelihood of used oil being dumped on lands and in ...