混凝法处理含铜电镀废水的实验研究
更新时间：2014-07-16 10:47
来源：环境工程学报
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阅读：2357
| 中文摘要: |
| 以FeSO4、PAC作为絮凝剂去除低浓度电镀废水中的Cu2+，考察了絮凝剂投加量、溶液pH值、搅拌速度和时间等影响因素，结果表明，在各自最佳条件下，PAC和FeSO4对Cu2+的去除可达到99.37%和99.20％，达到《污水综合排放标准》(GB 8978-1996)中一级排放标准。最后通过对FeSO4、PAC和NaOH 3种药剂的综合分析和比较，发现FeSO4絮凝处理低浓度电镀废水中的铜比PAC絮凝、NaOH沉淀法操作简单，污泥产生量少、工业应用性强而且去除率高。 |
| 英文摘要: |
| The ferric sulphate and PAC as flocculants were used to remove Cu2+ from the low concentration electroplating wastewater. The factors such as the contents of flocculants, pH of solution and so on were mainly and respectively observed. The experimental results show that under the optimum conditions of flocculation reaction with PAC and FeSO4,the removal rate of Cu2+ can reach 99.37% and 99.20% respectively which can meet the first level discharge standard of “Integrated Wastewater Discharge Standard”(GB 8978-1996). Moreover, by comparison of FeSO4, PAC and NaOH, it can be concluded that Fe2+ flocculation has better performance in operation, less sludge amounts and more practical industrial application than PAC flocculation and NaOH chemical precipitation, and it has higher removal rate in treating copper (Ⅱ) of low concentration industrial wastewater. |
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