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coagulant aid for phosphorus removal?

coagulant aid for phosphorus removal?

coagulant aid for phosphorus removal?

(OP)
Hello,

We are designing a chemical phosphorus removal system for a WWTP. We will use ferric chloride as our coagulant. But I am trying to decide what kind of polymer we should use as coagulant aid? And which polymer feeding equipment? This system will be a backup for biological system but we must design it for 100% removal if biological removal is down for any reason. There is polyblend of stranco and dynablend in the market as big brands. Anybody has any specs or experience with these equipments, any comparison? Any kind of information is very appreciated. Thanks to all from now.

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