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  2. Glass recycling - Wikipedia

    en.wikipedia.org/wiki/Glass_recycling

    Bottles in different colours Mixed colour glass cullet Public glass waste collection point for different colours of containers. Glass recycling is the processing of waste glass into usable products. [1]

  3. Recycling - Wikipedia

    en.wikipedia.org/wiki/Recycling

    This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. 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 Municipal ...

  4. Fiberglass - Wikipedia

    en.wikipedia.org/wiki/Fiberglass

    Glass fibers have been produced for centuries, but the earliest patent was awarded to the Prussian inventor Hermann Hammesfahr (1845–1914) in the U.S. in 1880. [3] [4]Mass production of glass strands was accidentally discovered in 1932 when Games Slayter, a researcher at Owens-Illinois, directed a jet of compressed air at a stream of molten glass and produced fibers.

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  6. Cleanroom - Wikipedia

    en.wikipedia.org/wiki/Cleanroom

    A cleanroom is a necessity in the manufacturing of semiconductors and rechargeable batteries, the life sciences, and any other field that is highly sensitive to environmental contamination.

  7. Fused quartz - Wikipedia

    en.wikipedia.org/wiki/Fused_quartz

    Fused quartz is produced by fusing (melting) high-purity silica sand, which consists of quartz crystals. There are four basic types of commercial silica glass: Type I is produced by induction melting natural quartz in a vacuum or an inert atmosphere.

  8. Gallon - Wikipedia

    en.wikipedia.org/wiki/Gallon

    General information; Unit of: Volume: Symbol: gal: Conversions (imperial) 1 imp gal in ..... is equal to ... SI units 4.54609 L US customary units ≈ 1.200950 US gal

  9. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]

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