Water Treatment Plant is a system that is used to treat water from contaminated raw water quality in order to get standard effluent water quality that is desired / determined or ready to be consumed.
Water Treatment Plant, basically divided into several stages, namely:
- Screening and Sedimentation
Filtering and sedimentation aims to separate raw water from substances, such as waste, leaves, grass, sand and others based on the specific gravity of the substance.
- Coagulation
Coagulation is the process of mixing chemicals into water so that impurities in water in the form of resuspended solids such as organic dyes, fine mud, bacteria and others can clot and settle quickly.
- Flocculation
Flocculation is the process of floc formation as a result of the combination of colloids in raw water (river water) with coagulants. Floc formation will occur well if you add coagulant into raw water (river water) then slow stirring.
- Sedimentation
After the process of coagulation and flocculation, the water is allowed to stand until the lump of dirt that occurs settles all. After the dirt settles the water will look clearer.
- Filtration
In the deposition process not all lumps of dirt can be deposited all. Grains of dirt, large and heavy impurities will settle, while small and lightweight ones still float in the water. To get really clear water a filtering process must be carried out. Filtering is done by draining the water that has been deposited with dirt into the filter tub consisting of a silica sand filter or using membrane technology.
- Disinfection
Giving disinfectants (chlorine gas) in filtered water aims to reduce bacterial concentrations in general and eliminate pathogenic bacteria (bacteria causing diseases).
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