Method for processing waste water generated by extracting copper oxide from acidic corrosion waste fluid
A technology for acid etching waste liquid and treatment method, which is applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. , the problem of high cost, to reduce the content of ammonia nitrogen, a large amount of treatment in a short time, reduce the effect of COD
Active Publication Date: 2012-07-18
GUANGZHOU KECHENG ENVIRONMENTAL PROTECTION TECH
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The invention discloses a method for processing waste water generated by extracting copper oxide from acidic corrosion waste fluid. The processing method comprises the following steps of: (1) extracting the copper oxide from the acidic corrosion waste fluid through strong alkaline solution, and generating waste water; (2) adopting cationic resin to carry out initial treatment; (3) adding sodium hypochlorite to remove ammonia nitrogen; (4) conveying to a first reaction pond, adding aluminium polychlorid to remove heavy metal ions, then conveying to a second reaction pond, and adding polyacrylamide to carry out sedimentation; and (5) in a settling pond, setting and layering suspending matters in waste water, conveying clear water on an upper layer into an air floating machine to remove the suspending matters, and discharging. According to the processing method, not only can the content of copper ions and ammonia nitrogen in the waste water can be reduced, but also COD (Chemical Oxygen Demand) can be greatly reduced, the processing effect for waste water with low COD content is good, and continuous processing of waste water generated by extracting the copper oxide from the acidic corrosion waste fluid can be realized.
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