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Preliminary treatment consists of screening, grit removal, septage handling, odor control, and flow equalization.This fact sheet discusses screening and grit removal.Screening screening is the first unit operation used at wastewater treatment plants wwtps.Screening removes objects such as rags, paper, plastics, and.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.