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2. Water ionizer - Wikipedia

   en.wikipedia.org/wiki/Water_ionizer

   A water ionizer (also known as an alkaline ionizer) is a home appliance which claims to raise the pH of drinking water by using electrolysis to separate the incoming water stream into acidic and alkaline components. [1] [2] [3] The treated water is called alkaline water.

3. NEWater - Wikipedia

   en.wikipedia.org/wiki/NEWater

   NEWater (pronounced New-Water) is the brand name given to highly treated reclaimed wastewater produced by Singapore's Public Utilities Board. NEWater is produced by further purifying conventionally treated wastewater through microfiltration , reverse osmosis and ultraviolet radiation.

4. Reverse osmosis - Wikipedia

   en.wikipedia.org/wiki/Reverse_osmosis

   This hybrid process reduces treatment cost significantly and lengthens membrane life. RO can be used for the production of deionized water. [17] In 2002, Singapore announced that a process named NEWater would be a significant part of its water plans. RO would be used to treat wastewater before discharging the effluent into reservoirs.

5. Coway (company) - Wikipedia

   en.wikipedia.org/wiki/Coway_(company)

   Coway Co., Ltd. (Korean: 코웨이 주식회사)is an international manufacturer of household appliances, water purifiers, air purifiers, bidets, water softeners, and mattresses from South Korea. [ 2 ] [ 3 ] [ 4 ] Founded and headquartered in Seoul, Coway is the largest water purifier company in the country and owns subsidiaries in Malaysia ...

6. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Pure water has a pH close to 7 (neither alkaline nor acidic). Sea water can have pH values that range from 7.5 to 8.4 (moderately alkaline). Fresh water can have widely ranging pH values depending on the geology of the drainage basin or aquifer and the influence of contaminant inputs .

7. Water supply and sanitation in Singapore - Wikipedia

   en.wikipedia.org/wiki/Water_supply_and...

   Under these agreements Singapore built two water treatment plants in Singapore and a new, expanded pipeline from Johor. [21] Singapore also supplied treated water to Johor far below the cost of treating the water. At the time of the agreements it was expected that Singapore would become part of Malaysia, as it did for a brief period beginning ...