>Polyacrylamide flocculant for electroplating wastewater. Anionic and cationic flocculants are used in electroplating wastewater treatment. Different models are used at different stages according to different water characteristics. When it comes to flocculants in chemical precipitation methods The role must start from the entire process flow.
The use process of electroplating wastewater flocculant 1. The main purpose is to promote the agglomeration and flocculation of settled small particles to ensure that the effluent reaches the standard. The wastewater first enters the oil separation regulating tank to remove part of the floating oil and homogenizes it, and then pumps it into the reaction sedimentation tank. Add acid solution to the reduction section of the reaction tank to adjust it, then add the reducing agent sodium metabisulfite, and after stirring, hexavalent chromium is reduced to trivalent chromium. 2. The wastewater flows into the chemical precipitation section of the reaction tank, and the wastewater is adjusted with a solution to ~ to form metal hydroxide precipitation. 3. In order to improve the settling performance of metal oxyoxides, the chemical precipitation section of the reaction tank is added to promote the agglomeration and flocculation of settled small particles to ensure that the effluent reaches the standard. The wastewater after the [banned word] reaction flows into the sedimentation tank to settle. The supernatant is adjusted to ~ in the regulating tank and then reused in the workshop cleaning process to achieve zero discharge of wastewater. The sedimentation tank sludge is pumped to the plate and frame filter press for filtering, and the filtrate flows back to the regulating pool for new treatment. The sedimentation tank sludge is dehydrated and formed into metallurgical raw materials for external sale.
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