WANG Yanmei.Study on Treatment of Electroplating Wastewater Containing Nickel by Ozone[J].Plating & Finishing,2022,(1):45-49.[doi:10.3969/j.issn.1001-3849.2022.01.008]
臭氧法处理电镀含镍废水工艺研究
- Title:
- Study on Treatment of Electroplating Wastewater Containing Nickel by Ozone
- 分类号:
- X703
- 文献标志码:
- A
- 摘要:
- 本论文采用O3+UV+Ca(OH)2法处理含镍废水，对氢氧化钙加入量、臭氧流量、反应时间、pH和紫外灯功率等影响因素进行了分析，利用Design Expert 8.0 中Box-Behnken法进行了响应面设计，并对实验数据进行了优化。结果表明，最佳废水处理的工艺条件为：紫外灯功率30 W，氢氧化钙加入量59.5 mg，臭氧流量98.7 mL·min-1，反应时间29.3 min，pH 7.9。在此条件下处理后的废水中镍离子浓度为0.0865 mg·L-1，达到排放标准。
- Abstract:
- In this paper， the O3+UV + Ca(OH)2 precipitation method was used to treat nickel-containing wastewater. The influencing factors， such as calcium hydroxide dosage， ozone flow rate， reaction time and pH， were analyzed. The box Behnken method in design expert 8.0 was used to carry out response surface design and the experimental data were optimized. The results show that the optimum process conditions for wastewater treatment are as follows： UV power is 30 W，calcium hydroxide dosage is 59.5 mg， ozone flow rate is 98.7 mL·min -1， the reaction time is 29.3 min and pH is 7.9. Under these conditions， the concentration of nickel ion in the treated wastewater is 0.0865 mg·L-1， which reaches the discharge standard.
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备注/Memo
收稿日期： 2021-07-04 修回日期： 2021-09-08 作者简介： 王延梅（1976－），女，硕士，副教授，email：wkwangyanmei@163.com