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  2. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    Bottled mineral water usually contains higher TDS levels than tap water. Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm).

  3. TDS - Wikipedia

    en.wikipedia.org/wiki/TDS

    Download as PDF; Printable version; ... Total dissolved solids in water; ... All pages with titles beginning with TDS;

  4. 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 ...

  5. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    In lime softening, there is a substantial reduction in total dissolved solids (TDS) whereas in ion exchange softening (sometimes referred to as zeolite softening), there is no significant change in the level of TDS. Lime softening can also be used to remove iron, manganese, radium and arsenic from water.

  6. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    The clarified water is then fed through a high-pressure piston pump into a series of RO vessels. 90.00–99.98% of the raw water's total dissolved solids are removed and military standards require that the result have no more than 1000–1500 parts per million by measure of electrical conductivity. It is then disinfected with chlorine.

  7. Spring (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Spring_(hydrology)

    This mineral content is measured as total dissolved solids (TDS). This may give the water flavor and even carbon dioxide bubbles, depending on the nature of the geology through which it passes. This is why spring water is often bottled and sold as mineral water, although the term is often the subject of deceptive advertising. Mineral water ...

  8. Conductivity (electrolytic) - Wikipedia

    en.wikipedia.org/wiki/Conductivity_(electrolytic)

    The electrolytic conductivity of ultra-high purity water increases as a function of temperature (T) due to the higher dissociation of H 2 O in H + and OH − with T. In many cases, conductivity is linked directly to the total dissolved solids (TDS). High-quality deionized water has a conductivity of

  9. Glossary of power generation - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_power_generation

    The open-cycle gas turbine uses the Brayton cycle. ... TDS Total dissolved solids. A measure of the impurities contained in cooling water Circulating water with high ...