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膜分离-光电催化深度处理高盐含聚污水

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李肖琳, 谢陈鑫, 秦微, 赵慧, 钱光磊, 滕厚开, 张艳芳. 膜分离-光电催化深度处理高盐含聚污水[J]. 环境工程学报, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
引用本文: 李肖琳, 谢陈鑫, 秦微, 赵慧, 钱光磊, 滕厚开, 张艳芳. 膜分离-光电催化深度处理高盐含聚污水[J]. 环境工程学报, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
shu
LI Xiaolin, XIE Chenxin, QIN Wei, ZHAO Hui, QIAN Guanglei, TENG Houkai, ZHANG Yanfang. Advanced treatment of polymer-bearing produced water with high salinity by membrane separation-photoelectrocatalytic combined process[J]. Chinese Journal of Environmental Engineering, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
Citation: LI Xiaolin, XIE Chenxin, QIN Wei, ZHAO Hui, QIAN Guanglei, TENG Houkai, ZHANG Yanfang. Advanced treatment of polymer-bearing produced water with high salinity by membrane separation-photoelectrocatalytic combined process[J]. Chinese Journal of Environmental Engineering, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
shu

膜分离-光电催化深度处理高盐含聚污水

  • 1.

    中海油天津化工研究设计院有限公司, 天津 300131

  • 基金项目:

    国家科技支撑计划项目（2014BAE06B00）

    中海油能源发展股份有限公司科技项目（HFKJ-TJY1404）

  • 中图分类号: X703

Advanced treatment of polymer-bearing produced water with high salinity by membrane separation-photoelectrocatalytic combined process

  • 1.

    CNOOC Tianjin Chemical Research and Design Institute Co. Ltd., Tianjin 300131, China

  • Fund Project:

  • 摘要: 海上油田含聚采油污水黏度大、乳化程度高、有机物种类繁多且盐含量高，处理难度极大。尝试采用膜分离-光电催化组合工艺深度处理高盐含聚采油污水，效果较好。考察了停留时间、电流密度、废水pH对光电催化体系运行效果的影响。结果表明：光电催化氧化技术可有效处理该类废水；pH对体系处理效率影响不大；停留时间越长，处理效果越好；随电流密度的增大，油类去除率逐渐提高，COD去除率先提高后趋于稳定。在pH 6~8.5、光电催化单元停留时间50 min、电流密度10 mA·cm-2条件下，出水COD浓度≤50 mg·L-1、石油类浓度≤3 mg·L-1，完全满足《辽宁省污水综合排放标准》（DB 21/1627-2008）要求。
    Abstract: Polymer-bearing produced water from offshore oilfields is difficult to treat because of its high viscosity, high degree of emulsification, complex composition, and high salinity. The test found that the produced water can be degraded effectively by a combined membrane separation-photoelectrocatalytic process. In this study, three factors, namely hydraulic retention time (HRT), current density, and pH, which influence the treatment efficiency of the produced water, were examined. The results show that pH had little effect on the treatment efficacy. The removal rates of chemical oxygen demand (COD) and oil increased as HRT increased. The oil removal rate had the same tendency as the current density increased, whereas the COD removal rate increased initially and then remained constant. When the pH was 6~8.5, HRT was 50 min, current density was 10 mA·cm-2, COD concentration of the effluent ≤ 50 mg·L-1, and oil concentration ≤ 3 mg·L-1, and the requirements of the enterprise were met.
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  • 收稿日期:  2015-05-27
  • 刊出日期:  2016-08-12
李肖琳, 谢陈鑫, 秦微, 赵慧, 钱光磊, 滕厚开, 张艳芳. 膜分离-光电催化深度处理高盐含聚污水[J]. 环境工程学报, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
引用本文: 李肖琳, 谢陈鑫, 秦微, 赵慧, 钱光磊, 滕厚开, 张艳芳. 膜分离-光电催化深度处理高盐含聚污水[J]. 环境工程学报, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
shu
LI Xiaolin, XIE Chenxin, QIN Wei, ZHAO Hui, QIAN Guanglei, TENG Houkai, ZHANG Yanfang. Advanced treatment of polymer-bearing produced water with high salinity by membrane separation-photoelectrocatalytic combined process[J]. Chinese Journal of Environmental Engineering, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
Citation: LI Xiaolin, XIE Chenxin, QIN Wei, ZHAO Hui, QIAN Guanglei, TENG Houkai, ZHANG Yanfang. Advanced treatment of polymer-bearing produced water with high salinity by membrane separation-photoelectrocatalytic combined process[J]. Chinese Journal of Environmental Engineering, 2016, 10(8): 4141-4146. doi: 10.12030/j.cjee.201503192
shu

膜分离-光电催化深度处理高盐含聚污水

  • 1. 中海油天津化工研究设计院有限公司, 天津 300131
  • 收稿日期:  2015-05-27
基金项目:

国家科技支撑计划项目（2014BAE06B00）

中海油能源发展股份有限公司科技项目（HFKJ-TJY1404）

摘要: 海上油田含聚采油污水黏度大、乳化程度高、有机物种类繁多且盐含量高，处理难度极大。尝试采用膜分离-光电催化组合工艺深度处理高盐含聚采油污水，效果较好。考察了停留时间、电流密度、废水pH对光电催化体系运行效果的影响。结果表明：光电催化氧化技术可有效处理该类废水；pH对体系处理效率影响不大；停留时间越长，处理效果越好；随电流密度的增大，油类去除率逐渐提高，COD去除率先提高后趋于稳定。在pH 6~8.5、光电催化单元停留时间50 min、电流密度10 mA·cm-2条件下，出水COD浓度≤50 mg·L-1、石油类浓度≤3 mg·L-1，完全满足《辽宁省污水综合排放标准》（DB 21/1627-2008）要求。

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