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  2. 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 ...

  3. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    This led India's National Green Tribunal to propose a ban on RO water purification systems in areas where the total dissolved solids (TDS) measure in water is less than 500 mg/liter. [citation needed] In Delhi, large-scale use of household RO devices has increased the total water demand of the already water-parched National Capital Territory of ...

  4. Cooling tower - Wikipedia

    en.wikipedia.org/wiki/Cooling_tower

    Draw-off or blow-down — The portion of the circulating water flow that is removed (usually discharged to a drain) in order to maintain the amount of Total Dissolved Solids (TDS) and other impurities at an acceptably low level. Higher TDS concentration in solution may result from greater cooling tower efficiency.

  5. Salinity - Wikipedia

    en.wikipedia.org/wiki/Salinity

    Salinity in rivers, lakes, and the ocean is conceptually simple, but technically challenging to define and measure precisely. Conceptually the salinity is the quantity of dissolved salt content of the water.

  6. Wastewater quality indicators - Wikipedia

    en.wikipedia.org/wiki/Wastewater_quality_indicators

    Solid material in wastewater may be dissolved, suspended, or settled. Total dissolved solids or TDS (sometimes called filterable residue) is measured as the mass of residue remaining when a measured volume of filtered water is evaporated. The mass of dried solids remaining on the filter is called total suspended solids (TSS) or nonfilterable ...

  7. TDS - Wikipedia

    en.wikipedia.org/wiki/TDS

    TDS Telecom, a subsidiary; Thompson Dorfman Sweatman, a law firm, ... Total dissolved solids in water; Transderivational search or fuzzy search in psychology; Other uses

  8. Fresh water - Wikipedia

    en.wikipedia.org/wiki/Fresh_water

    Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids.Although the term specifically excludes seawater and brackish water, it does include non-salty mineral-rich waters such as chalybeate springs.

  9. Mixed liquor suspended solids - Wikipedia

    en.wikipedia.org/wiki/Mixed_liquor_suspended_solids

    Mixed liquor suspended solids (MLSS) is the concentration of suspended solids, in an aeration tank during the activated sludge process, which occurs during the treatment of waste water. The units MLSS is primarily measured in milligram per litre (mg/L), but for activated sludge its mostly measured in gram per litre [g/L] which is equal to ...