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Ask you about the deep treatment process of prawn and domestic sewage treatment plant: which is used for ordinary fast filter and continuous sand filtration? Advantages and disadvantages of two processes and economy 10 Ordinary fast filter and continuous sand filtration are two mature processes that are widely used at present,Difficult to distinguish,All have their own advantages and disadvantages.Economy,Easier to manage.Single,Water quality is different from standard.Sewage treatment is relatively thorough,Water quality can meet national standards.The investment is relatively large,Management is cumbersome.If it's just a general domestic sewage treatment,It is recommended to use ordinary fast filter.If there is industrial sewage,Or use continuous sand filtration.Application Scope of active sand filter I. continuous sand flow filter: Based on countercurrent principleIt is a continuous filtration equipment integrating coagulation, clarification and filtration,It is widely used in the fields of drink