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Cause printing ink wastewater after polyaluminum chloride coagulation does not precipitate the reaso

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2017-12-13 14:42:57

Cause printing ink wastewater after polyaluminum chloride coagulation does not precipitate the reason? Cause printing ink wastewater after polyaluminum chloride coagulation does not precipitate the reason? A water station is currently dealing with the printing ink wastewater, however, there is a serious problem handling, water station staff response: printing ink wastewater by polyaluminum chloride, polyacrylamide coagulation does not precipitate in the regulation pool sampling beaker experiment Precipitation good effect, why not precipitate out of the reaction after it? Drugs and reaction conditions have not changed? Note: It used to be precipitation. Sludge floating a little sticky, after a day of shaking and then it will sink, floating in the parcel bubble, then what would be the reason?