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2. 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.

3. Chemical phosphorus removal - Wikipedia

   en.wikipedia.org/wiki/Chemical_phosphorus_removal

   The alum dosage is also insufficient to cause toxicity in humans, and is often similar to alum doses used in conventional drinking water treatment. [8] To reduce negative biological effects, the accepted limit for dissolved aluminum concentrations in a water body is 50 μg Al/L and pH should be restricted to a range of 5.5-9. [2]

4. Boiler feedwater - Wikipedia

   en.wikipedia.org/wiki/Boiler_feedwater

   Boiler water treatment is used to control alkalinity, prevent scaling, correct pH, and to control conductivity. [3] The boiler water needs to be alkaline and not acidic, so that it does not ruin the tubes. There can be too much conductivity in the feed water when there are too many dissolved solids.

5. Passive treatment system - Wikipedia

   en.wikipedia.org/wiki/Passive_treatment_system

   A hybrid system using Flowforms in a passive treatment pond, in Norway. There are many types of water treatment systems available for removing metals from acid mine drainage. Passive treatment systems are a relatively recent technology that involves using sulfate-reducing bacteria or limestone or both to neutralize acidity and precipitate metals.

6. Dealkalization of water - Wikipedia

   en.wikipedia.org/wiki/Dealkalization_of_water

   The reduction of blowdown by dealkalization keeps the water treatment chemicals in the boiler longer, thus minimizing the amount of chemicals required for efficient, noncorrosive operation. [2] Carbonate and bicarbonate alkalinities are decomposed by heat in boiler water releasing carbon dioxide into the steam.

7. Should You Drink Lime Water? Here Are 9 Health Reasons ... - AOL

   www.aol.com/drink-lime-water-9-health-182516065.html

   Lime juice also contains about 1 percent magnesium. Lime water can make that a whole lot easier. A fresh-squeezed lime is “going to add about 11 calories to the water that you’re drinking ...