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Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, and for storing it in safe containers could save a huge number of lives each year. [52] Reducing deaths from waterborne diseases is a major public health goal in developing countries. The global water purification market is worth 22 billion ...
Dalecarlia Water Treatment Plant, Washington, D.C. Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.
The conventional treatment method for water purification is a complex, multistage process that was used for many years. [10] It generally consists of five primary steps. [11] First, raw water is adjusted for alkalinity and pH with the addition of hydrated lime and carbon dioxide.
Filtration as a method of water purification was established in the 18th century, and the first municipal water treatment plant was built in Scotland in 1832. However, the aesthetic value of water was important at the time, and effective water quality standards did not exist until the late 19th century. [18]
Carrying iodine for water purification is an imperfect but lightweight solution for those in need of field purification of drinking water. Kits are available in camping stores that include an iodine pill and a second pill (vitamin C or ascorbic acid ) that will remove the iodine taste from the water after it has been disinfected .
Sand filter used for water treatment. Sand filters are used as a step in the water treatment process of water purification. There are three main types; rapid (gravity) sand filters, upward flow sand filters and slow sand filters. All three methods are used extensively in the water industry throughout the world.
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