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2. Solenis - Wikipedia

   en.wikipedia.org/wiki/Solenis

   2014–Present: Ashland Water Technologies was bought by private investment firm Clayton, Dubilier & Rice (CD&R) from Ashland Inc. on July 31, 2014, and rebranded as Solenis. [7] 2008-2014: Ashland purchased Hercules Inc. in 2008 for $2.6 billion to double earnings and gain chemicals used in papermaking, water treatment and construction. [8]

3. Water softening - Wikipedia

   en.wikipedia.org/wiki/Water_softening

   Minerals containing calcium and magnesium form soluble bicarbonates when exposed to carbonic acid. Water containing these minerals is known as "hard water". [citation needed] When hard water is heated in a plumbing system, carbon dioxide goes out of solution, and bicarbonates become carbonates, which are much less soluble.

4. Lime softening - Wikipedia

   en.wikipedia.org/wiki/Lime_softening

   Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.

5. Veolia Water - Wikipedia

   en.wikipedia.org/wiki/Veolia_Water

   Veolia Water delivers wastewater treatment services to 68 million people around the world and, as of 2009, it managed 3,229 municipal water treatment plants. [ citation needed ] In October 2010, Veolia Water was contracted to rebuild a wastewater treatment plant in Lille (France) in a project that will ultimately have the capacity to treat ...

6. Hard water - Wikipedia

   en.wikipedia.org/wiki/Hard_water

   A bathtub faucet with built-up calcification from hard water in Southern Arizona. Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, [1] which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates.

7. Industrial water treatment - Wikipedia

   en.wikipedia.org/wiki/Industrial_water_treatment

   Advancements in water treatment technology have affected all areas of industrial water treatment. Although mechanical filtration, such as reverse osmosis , is widely employed to filter contaminants, other technologies including the use of ozone generators, wastewater evaporation, electrodeionization and bioremediation are also able to address ...