FU Yao,ZHANG Li-ting.Application of Integrated Secondary Treatment and Ozonation in WWTP Upgrading and Expansion to Meet Quasi-Ⅳ Standards[J].China Water & Wastewater,2020,36(22 22):141-144.
Application of Integrated Secondary Treatment and Ozonation in WWTP Upgrading and Expansion to Meet Quasi-Ⅳ Standards
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
22 22
Page:
141-144
Column:
Date of publication:
2020-11-17
- Keywords:
- secondary treatment; ozonation; upgrading and expansion
- Abstract:
- The design capacity of a wastewater treatment plant upgrading and expansion project in Xixian New Area is 5×104 m3/d, and the effluent water quality is in accordance with the quasi-Ⅳ standard of Environmental Quality Standards for Surface Water (GB 3838—2002). The integrated process including modified AAO and secondary sedimentation tank with peripheral water inlet and outlet is adopted in secondary treatment, while ozone contact tank and V-filter are newly built in tertiary treatment, and the effluent is disinfected by ultraviolet light. The total investment is 80.589 3 million yuan. After operation, the effluent quality can stably meet design standard.
Last Update:
2020-11-17