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2. Total dissolved solids - Wikipedia

   en.wikipedia.org/wiki/Total_dissolved_solids

   14] Water can be classified by the level of total dissolved solids (TDS) in the water: Fresh water: TDS is less than 1,000 ppm. Brackish water: TDS = 1,000 to 10,000 ppm. Saline water: TDS = 10,000 to 35,000 ppm. Hypersaline: TDS greater than 35,000 ppm. Drinking water generally has a TDS below 500 ppm. Higher TDS Fresh Water is drinkable but ...

3. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Instead of using the static pressure of a water supply line to force the water through the filter, pressure is provided by a hand-operated pump. These devices can generate drinkable water from seawater. The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows ...

4. Ultrapure water - Wikipedia

   en.wikipedia.org/wiki/Ultrapure_water

   Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including organic and inorganic compounds, dissolved and particulate matter, and ...

5. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Complete removal of ions from water is possible if the right conditions are met. The water is normally pre-treated with a reverse osmosis unit to remove non-ionic organic contaminants, and with gas transfer membranes to remove carbon dioxide. A water recovery of 99% is possible if the concentrate stream is fed to the RO inlet.

6. Capacitive deionization - Wikipedia

   en.wikipedia.org/wiki/Capacitive_deionization

   This project enables the reduction of total dissolved solids from 1,000 mg/L to 250 mg/L and turbidity from 10 NTU to 1 NTU, a unit indicating the cloudiness of a fluid. The water recovery can reach 75%. Electrical energy consumption level is 1 kWh/m 3, and the cost for water treatment is 0.22 US dollars/m 3. Some other large-scale projects can ...

7. It's time to breathe easy: Get a top air purifier while it's ...

   www.aol.com/lifestyle/best-presidents-day-sales...

   The Afloia Gala Air Purifier cleans spaces up to 600 square feet, making it ideal for living rooms and bedrooms. This machine is equipped with a HEPA filter to weed out up to 99.97 percent of ...