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  2. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Dalecarlia Water Treatment Plant, Washington, D.C. 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.

  3. Dolphin WaterCare - Wikipedia

    en.wikipedia.org/wiki/Dolphin_WaterCare

    Dolphin WaterCare is a brand of environmentally responsible pulsed-power water treatment technology patented by Clearwater Systems Corporation. [3] [4] The system is designed to control scale, corrosion and biological activity in cooling towers without the use of chemicals, chemical tanks or pumps. [5]

  4. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    By considering a long-term (e.g. seasonal) average depth of the water table (Dw) in combination with the long-term average recharge rate (R), the net storage of water in that period of time is negligibly small and the steady state condition is satisfied: one obtains a dynamic equilibrium. Derivation of the equation

  5. Elliptical polarization - Wikipedia

    en.wikipedia.org/wiki/Elliptical_polarization

    When increases from zero, i.e., assumes positive values, the line evolves into an ellipse that is being traced out in the counterclockwise direction (looking in the direction of the propagating wave); this then corresponds to left-handed elliptical polarization; the semi-major axis is now oriented at an angle .

  6. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    An alternative water treatment is called water conditioning, in which minerals remain in the water, but are altered so they do not form scale. Although the United States has standards for measuring the minerals in water, it does not have standards for measuring scale forming ability of water. Instead, US researchers use the German DVGW-W512 ...

  7. Talk:Water purification - Wikipedia

    en.wikipedia.org/wiki/Talk:Water_purification

    They are all good as seperate articles. Water treatment is a nice overview article, Sewage treatment is different to water treatment and reclamation is not just about water. -- Alan Liefting talk 05:59, 28 August 2007 (UTC) Oppose They are all good as seperate articles. Water treatment is a nice overview article, Sewage treatment is different ...

  8. Electrocoagulation - Wikipedia

    en.wikipedia.org/wiki/Electrocoagulation

    Electrocoagulation (EC) is a technique used for wastewater treatment, wash water treatment, industrially processed water, and medical treatment. Electrocoagulation has become a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, total petroleum ...

  9. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Portable water purification devices and methods are available for disinfection and treatment in emergencies or in remote locations. Disinfection is the primary goal, since aesthetic considerations such as taste, odour, appearance, and trace chemical contamination do not affect the short-term safety of drinking water.