LIUJin-xing,HUBang,ZHANGXin,et al.Application of Multi-mode AO and MBR Combined Process in Industrial Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(20):83-88.
Application of Multi-mode AO and MBR Combined Process in Industrial Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第20期
Page:
83-88
Column:
Date of publication:
2023-10-17
- Keywords:
- WWTP; multi-mode AO and MBR tank; advanced oxidation tank
- Abstract:
- An industrial wastewater treatment plant in Yixing is a supporting project of an integrated circuit material industrial park in Yixing economic development zone. The total design scale is 5.0×104 m3/d, and the recent scale is 2.5×104 m3/d, including 0.2×104 m3/d fluoride-containing wastewater. The design effluent quality is required to meet the limit in table 1 specified in Discharge Standard of Main Water Pollutants for Municipal Wastewater Treatment Plant & Key Industries of Taihu Area (DB 32/1072-2018). The fluorine-containing wastewater is firstly pretreated by removing fluoride and calcium and nitrification. Then, it is mixed with the comprehensive wastewater and subjected to hydrolytic acidification tank and multi-mode AO+MBR secondary treatment, and the advanced treatment process is advanced oxidation and ultraviolet disinfection. An emergency tank is set up in the plant to temporarily store the accident wastewater as an emergency measure in case of influent impact and accident condition, so as to ensure that the effluent quality stably meets the discharge standard. Actual operation shows that the effluent quality meets the standard stably. The total investment of the project is approximately 450 million yuan, and some of the structures are co-built, which has the advantages such as small footprint area, low investment and convenient later-stage management. The emergency tank, hydrolytic acidification tank and biochemical tank are all covered and laid with green to avoid the escape of odor, which has a good landscape effect.
Last Update:
2023-10-17