PENG Lihua,DONG Jia.Exploration of the Transformation of Electroplating Wastewater Treatment Process[J].Plating & Finishing,2020,(4):43-46.[doi:10.3969/j.issn.1001-3849.2020.04.0100]
电镀废水处理工艺改造的探索与实践
- Title:
- Exploration of the Transformation of Electroplating Wastewater Treatment Process
- 文献标志码:
- A
- 摘要:
- 针对某工业园区电镀废水处理后水质未能达标，调整原电镀废水处理工艺，增加膜生物反应器(MBR)处理工段，并探索各工段的最佳运行参数。结果表明，当混凝池中聚合氯化铝(PAC)和聚丙烯酰胺(PAM)投加量分别为25 mg/L、65 mg/L、MBR工段水力停留时间为6 h、超滤(UF)膜运行压力0.25 MPa、滤液透过率为0.7时，出水中Ni2+、Cu2+、总Cr的浓度分别为0.255 mg/L、0.267 mg/L、0.328 mg/L，水质符合标准要求。综合计算，处理工艺改造后运行成本增加2.38元/t，因此该工艺技术具有较好的推广应用价值。
- Abstract:
- In this paper, the membrane bioreactor (MBR) treatment section was added into the electroplating wastewater treatment process, and the optimal operating parameters of the treatment process were explored. The results showed that the concentration of Ni2+, Cu2+ and total Cr were 0.255 mg/L, 0.267 mg/L and 0.328 mg/L respectively in the effluent water when the dosage of PAC and PAM in coagulating basin were 25 mg/L and 65 mg/L respectively, the hydraulic retention time of MBR section was 6 h, the UF pressure was 0.25 MPa and the transmissivity of solution was 0.7. The increased operation cost was 2.38 yuan per ton, and the effluent water quality could meet the standards, so that the transformation process technology has a good value in popularization and application.
参考文献/References:
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[2] 夏仙兵,蔡邦肖,缪佳,等.膜工艺在电镀废水处理工程中的应用[J]. 环境工程学报,2016,10(1):495-502.
[3] 王天行,刘晓东,喻学敏.电镀废水处理技术研究现状及评述[J]. 电镀与涂饰,2017,36(9):493-500.
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备注/Memo
收稿日期： 2019-04-18；修回日期： 2019-08-11