Method and device for multicomponent oxide pretreatment of organic electroplating waste water
A pretreatment technology for electroplating wastewater, applied in metallurgical wastewater treatment, water/sewage multi-stage treatment, oxidized water/sewage treatment, etc., can solve the problem of excessive CODcr in effluent, poor coagulation sedimentation or air flotation pretreatment effect, biochemical bacteria Can not be cultivated and other problems, to achieve the effect of stable operation, improved biochemical performance, and low processing cost
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[0020] Below in conjunction with accompanying drawing, the present invention will be further described:
[0021]Organic electroplating wastewater multi-oxidation pretreatment method, organic electroplating wastewater undergoes acidity adjustment, iron-carbon micro-electrolysis reaction, Fenton oxidation reaction in sequence, and then effluent, creating good water inflow conditions for subsequent coagulation sedimentation or air flotation and biochemical treatment. The acidity adjustment controls the pH value of the organic electroplating wastewater to 2.0-5.0 to ensure the acidity conditions required for the iron-carbon micro-electrolysis reaction. Generally, the influent pH value of the organic electroplating wastewater is between 2.0-5.0, and no additional acid is needed Or alkali, using waste to treat waste can save a lot of pharmaceutical costs. The iron-carbon micro-electrolysis reaction is that the organic electroplating wastewater undergoes a micro-electrolysis reaction...
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