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  2. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    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). TDS in water can be measured using a digital meter.

  3. Water filter - Wikipedia

    en.wikipedia.org/wiki/Water_filter

    A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .

  4. Microfiltration - Wikipedia

    en.wikipedia.org/wiki/Microfiltration

    Cross flow filtration is understood to be a unit operation rather than a process. Refer to Figure 2 for a general schematic for the process. Dead-end filtration; all of the process fluid flows and all particles larger than the pore sizes of the membrane are stopped at its surface. All of the feed water is treated at once subject to cake formation.

  5. Sand filter - Wikipedia

    en.wikipedia.org/wiki/Sand_filter

    Sand filters are used as a step in the water treatment process of water purification . There are three main types; rapid (gravity) sand filters, upward flow sand filters and slow sand filters. All three methods are used extensively in the water industry throughout the world. The first two require the use of flocculant chemicals to work ...

  6. I've Been Using the ZeroWater Pitcher for Years and It ... - AOL

    www.aol.com/lifestyle/ive-using-zerowater...

    The five-stage water filter is top-notch and, per an independent lab, removes 99.6 percent of total dissolved solids, which is twice more than the leading brand. The filter is also NSF-certified ...

  7. Filtration - Wikipedia

    en.wikipedia.org/wiki/Filtration

    Filtration is a physical separation process that separates solid matter and fluid from a mixture using a filter medium that has a complex structure through which only the fluid can pass. Solid particles that cannot pass through the filter medium are described as oversize and the fluid that passes through is called the filtrate. [1]

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