Chlorination
Clean drinking water is usually stored in large tanks. Sewage treatment on the other hand refers to the process of removing the contaminants from the waste water.
Water filters work by removing or reducing contaminants from water to produce water safe for drinking and other uses.
This process is called Desalination.
It doesn't. By itself, desalinization does not make water safe for drinking. Depending upon the process used, contaminants may be present that must be removed. This can be as simple as filtering.
When contaminants find their way into an aquifer, there will be a need to purify the water again. There are filters built into this type of system to prevent contaminants from entering the drinking water.
Contaminants could enter the water supply when a water main breaks, making it necessary to boil the water before drinking or cooking with it. Boiling water rids the water or bacteria and other harmful contaminants.
Dennis A Clifford has written: 'Arsenic (III) and arsenic (V) removal from drinking water in San Ysidro, New Mexico' -- subject(s): Drinking water, Arsenic 'A mobile drinking water treatment research facility for inorganic contaminants removal' -- subject(s): Water, Purification, Reverse osmosis process, Ion exchange process, Adsorption
Ocean Water can be treated through the process of desallination which removes the salt and other contaminants. This process can make fresh water from ocean water, but the process of desallination is very expensive, and too arduous to rely on as a significant source of fresh, drinkable water.
Reverse osmosis is the process of passing water through a filter to improve the quality of the water. The advantages of such a process are that it is environmentally friendly as it does not use chemicals, it can be small in size, it does not use much power and it improves the taste of the water by removing contaminants.
Most plants are used for removing biological contaminants or chemical contaminants from a water supply such as an industry or agricultural business. Bio-degradation is used sometimes as well.
Desalination is the process of removing salt from sea-water in order to make it suitable for drinking.
Desalinization is the process of removing salt from sea water.