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  2. Flocculation - Wikipedia

    en.wikipedia.org/wiki/Flocculation

    Flocculation (except in polymer science) Process of contact and adhesion whereby dispersed molecules or particles are held together by weak physical interactions ultimately leading to phase separation by the formation of precipitates of larger than colloidal size. In contrast to aggregation, agglomeration is a reversible process.

  3. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes and fittings.

  4. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable ...

  5. Minecraft mod makes shadows more shadowy, water ... - Engadget

    www.engadget.com/2012-07-29-minecraft-mod-makes...

    As seen above, the mod adds dynamic shading effects as well as more realistic movement to vegetation and fire, and best of all, hyper-pretty transparent water cubes. While not yet fully optimized ...

  6. DEA list of chemicals - Wikipedia

    en.wikipedia.org/wiki/DEA_list_of_chemicals

    It also maintains List I of chemicals and List II of chemicals, which contain chemicals that are used to manufacture the controlled substances/illicit drugs. The list is designated within the Controlled Substances Act [1] but can be modified by the U.S. Attorney General as illegal manufacturing practices change.

  7. Water-reactive substances - Wikipedia

    en.wikipedia.org/wiki/Water-reactive_substances

    Water-reactive substances[ 1] are those that spontaneously undergo a chemical reaction with water, as they are highly reducing in nature. [ 2] Notable examples include alkali metals, lithium through caesium, and alkaline earth metals, magnesium through barium . Some water-reactive substances are also pyrophoric, like organometallics and ...

  8. Coagulation (water treatment) - Wikipedia

    en.wikipedia.org/wiki/Coagulation_(water_treatment)

    Coagulation is a chemical process that involves neutralization of charge whereas flocculation is a physical process and does not involve neutralization of charge. The coagulation-flocculation process can be used as a preliminary or intermediary step between other water or wastewater treatment processes like filtration and sedimentation.

  9. Dissolved air flotation - Wikipedia

    en.wikipedia.org/wiki/Dissolved_air_flotation

    Dissolved air flotation. Dissolved air flotation ( DAF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin.