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2. Water softening - Wikipedia

   en.wikipedia.org/wiki/Water_softening

   The presence of certain metal ions like calcium and magnesium, principally as bicarbonates, chlorides, and sulfates, in water causes a variety of problems. [1] Hard water leads to the buildup of limescale, which can foul plumbing, and promote galvanic corrosion. [2] In industrial scale water softening plants, the effluent flow from the re ...

3. Thomas Clark (chemist) - Wikipedia

   en.wikipedia.org/wiki/Thomas_Clark_(chemist)

   He became known for the discovery of the phosphate of soda, and the process of lime softening of hard water the 'Clark process'. A Clark degree (°Clark) of water hardness is defined as one grain (64.8 mg) of CaCO 3 per Imperial gallon (4.55 litres) of water, equivalent to 14.254 ppm. and 10^5 parts of water

4. Calgon (water softener) - Wikipedia

   en.wikipedia.org/wiki/Calgon_(water_softener)

   Calgon is a brand of water softener products owned by the Anglo-Dutch company Reckitt Benckiser. Advertising. In Portugal, ...

5. Flow of aid to Gaza could take time, warns International ...

   www.aol.com/news/flow-aid-gaza-could-time...

   The flow of aid into Gaza could take time to ramp up, chief of the International Rescue Committee David Miliband said on Monday, as relief trucks conducted a second day of deliveries following the ...

6. Valencia floods prompt race for funds to boost Spain's ...

   www.aol.com/news/valencia-floods-prompt-race...

   Such companies have largely been active in countries facing water stress such as Saudi Arabia and Morocco, but now finding solutions for the problems at home presents opportunities for growth - as ...

7. Robot umpires are getting their first MLB test during spring ...

   www.aol.com/robot-umpires-getting-first-mlb...

   A computerized system that calls balls and strikes is being tested during Major League Baseball spring training exhibition games starting Thursday after four years of experiments in the minor leagues.