Pre Chlorination In Water Treatment Plant

Prechlorination which is often the final step of pretreatment and a standard practice in many parts of the world has been questioned by scientists.

Pre chlorination in water treatment plant. It also reduces taste colour odour algae and other organisms. Similar to numerous processes for water treatments chlorination can be applied as pretreatment such as in prechlorination or the last part of the water treatment process like in postchlorination. When treatment plants are distant from the point of use chlorination is the best way to provide safe water to the end user. Pre chlorination refers to the process of adding chlorine to water as soon as it enters the treatment plant.

Chlorination is the addition of chlorine into water usually to achieve corrosion control and disinfection. Municipal water providers usually rely on measurements of chlorine residual the amount of chlorine remaining in the water after it reaches its destination as proof of safety. Sedimentation for solids separation that is the removal of suspended solids trapped. Until the middle of the 1970s water treatment plants typically used both pre chlorination and post chlorination.

Because of the additional chlorine demand in turbid water users are instructed to double the dosage of chlorine adding 2 capfuls of solution instead of 1 capful for a dosage of 3 8 mg l as opposed to 1 9 mg l in order to effectively disinfect turbid water and maintain. Pre chlorination for algae control and arresting biological growth aeration along with pre chlorination for removal of dissolved iron when present with small amounts relatively of manganese. During the prechlorination process chlorine is applied to raw water that may contain high concentrations of natural organic matter. Pre chlorination in the flash mixer is found to remove tastes and odours and control biological growth throughout the water treatment system thus preventing growth in the sedimentation tanks where solids are removed from the water by gravity settling and the filtration media the filters through which the water passes after sitting in the.

Other articles where prechlorination is discussed. Chlorine is usually added straight into the raw water or into a mixing vessel which makes sure that the chlorine is evenly spread throughout the body of water being treated. Sodium hypochlorite solution chlorine is effective at treating both clear and turbid dirty looking water.