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Treatment stages - Primary treatment • typical materials that are removed during primary treatment include – fats, oils, and greases – sand, gravels and rocks – larger settle-able solids including human waste, and – floating materials. 12.
Chlorination of Wastewater• -Chlorine is delivered to wastewater treatment facilities in pressurized containers, which range in size from 150-lb to 1-ton cylinders.• -Chlorine is liquefied under high pressure & withdrawn as a gas or liquid, depending on the withdrawal rate.•
