_____ are used in pre-treatmemt of water to remove solid objects.
Answers
hey mate!
here's your answer....
»»First of all..
-»In the process of purification of water there are 5 major unit processes include chemical coagulation, flocculation, sedimentation, filtration, and disinfection. There are chemicals added to the water as it enters the various treatment processes.
-»Common methods of disinfection include ozone, chlorine, ultraviolet light, or sodium hypochlorite. Chloramine, which is used for drinking water, is not used in the treatment of waste water because of its persistence.
•The process of screening, which removes large debris such as sticks and trash from the water to be treated. Screening is generally used when purifying surface water such as that from lakes and rivers.
* so your one word answer is Screening. *
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