工业水处理 ›› 2024, Vol. 44 ›› Issue (11): 172-176. doi: 10.19965/j.cnki.iwt.2024-0122

• 工程实例 • 上一篇    下一篇

光伏企业生产废水处理工程实例

杨伟球1(), 史广宇2   

  1. 1. 苏州农业职业技术学院,江苏 苏州 215008
    2. 苏州科技大学环境科学与工程学院,江苏 苏州 215009
  • 收稿日期:2024-08-13 出版日期:2024-11-20 发布日期:2024-12-09
  • 作者简介:

    杨伟球(1979— ),硕士,副教授。E-mail:

  • 基金资助:
    2019年江苏高校“青蓝工程”资助项目(苏教师[2019]3号); 苏州市高等职业教育教师创新团队建设项目(苏教高职[2021]58号)

A project case on treatment of photovoltaic enterprise production wastewater

Weiqiu YANG1(), Guangyu SHI2   

  1. 1. Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China
    2. College of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
  • Received:2024-08-13 Online:2024-11-20 Published:2024-12-09

摘要:

根据光伏企业生产废水水质特征,按照分类收集、分质处理原则,将含氟废水经混凝沉淀预处理后再与综合废水合并,采用电催化-混凝沉淀-管式微滤-UASB-AO组合工艺进行处理。运行结果表明,该工艺对光伏企业综合废水中的污染物有较高的去除率,对F-、CODCr、BOD5、NH4 +-N、TN和SS的最终去除率分别达到了89.1%、97.6%、96.5%、90.6%、84.3%和85.3%,出水水质可以达到《电池工业污染物排放标准》(GB 30484—2013)表2新建企业水污染物间接排放标准要求,工程投资共计797万元,运行费用为8.36元/t,通过沼气回收、磁悬浮风机节能技术,每年产生经济效益为34.0万元,为光伏企业生产废水的设计与运行处理提供参考。

关键词: 光伏企业生产废水, 氟离子, 混凝沉淀, 电催化, 管式超滤膜, 厌氧反应器

Abstract:

Based on the quality characteristics of production wastewater from photovoltaic enterprises and the principles of separate collection and treatment, fluorine-containing wastewater was pretreated by coagulation and sedimentation before combing with comprehensive wastewater. The electrocatalysis-coagulation sedimentation-TMF-UASB-AO combination process was used to treat the mixed wastewater. The operation results showed that this process had a high removal rate for pollutants in the comprehensive wastewater of photovoltaic enterprises. The final removal rates of F-, CODCr, BOD5, NH4 +-N, TN, and SS reached 89.1%, 97.6%, 96.5%, 90.6%, 84.3%, and 85.3%, respectively. The effluent quality could meet the requirements of Table 2 in the Pollutant Discharge Standards for Battery Industry (GB 30484-2013) for indirect discharge of water pollutants in new enterprises. The total project investment was 7.97 million yuan, and the operating cost was 8.36 yuan/t. Through biogas recovery and magnetic levitation fan energy-saving technology, the annual economic benefit was 340 000 yuan, which provided reference for the design and operation of wastewater treatment in photovoltaic enterprises.

Key words: photovoltaic enterprise production wastewater, fluoride ion, coagulation sedimentation, electrocatalysis, tubular ultrafiltration membrane, anaerobic reactor

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