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
中图分类号:
杨伟球, 史广宇. 光伏企业生产废水处理工程实例[J]. 工业水处理, 2024, 44(11): 172-176.
Weiqiu YANG, Guangyu SHI. A project case on treatment of photovoltaic enterprise production wastewater[J]. Industrial Water Treatment, 2024, 44(11): 172-176.