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2. Reverse osmosis - Wikipedia

   en.wikipedia.org/wiki/Reverse_osmosis

   Reverse osmosis ( RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria ), and is used ...

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. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption ( drinking water ), but water purification may also be carried out for a variety of ...

5. LG Gram 17 review: The oversized thin-and-light no one asked for

   www.engadget.com/2019-11-30-lg-gram-17-review...

   LG Gram 17 review. At 2.9 pounds, the Gram 17 is lighter than the 4.4-pound Dell XPS 15 or the 4.3-pound MacBook Pro 16. It's even lighter than the 15-inch Surface Laptop 3, which weighs 3.4 ...

6. The settings you should change immediately after buying a new TV

   www.engadget.com/2018-03-05-best-tv-settings.html

   The settings you should probably disable. Jump into your TV's settings and head to the picture settings menu. Before you start tweaking, set the display's mode to "Movie" (this is sometimes called ...

7. Slow sand filter - Wikipedia

   en.wikipedia.org/wiki/Slow_sand_filter

   Slow sand filter. Slow sand filters are used in water purification for treating raw water to produce a potable product. They are typically 1–2 m (3.3–6.6 ft) deep, can be rectangular or cylindrical in cross section and are used primarily to treat surface water. The length and breadth of the tanks are determined by the flow rate desired for ...

8. LG is building a washing machine that doesn't use water

   www.engadget.com/2013-04-17-lg-senior-vp-washing...

   Well, the Korean electronics manufacturer has plenty more appliances up its capacious sleeves, including a washing machine that won't require water. Alas, Senior Vice President for LG Electronics ...

9. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.