CHUZhen-yu,LIJun-fei,LINYing,et al.Application of MBBR, Magnetic Coagulation and Denitrification Deep Bed Filter Process in an Underground Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(12):80-84.
Application of MBBR, Magnetic Coagulation and Denitrification Deep Bed Filter Process in an Underground Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第12期
Page:
80-84
Column:
Date of publication:
2023-06-17
- Keywords:
- MBBR; modified biofilm moving carrier; underground wastewater treatment plant; denitrification deep bed filter
- Abstract:
- In view of the technical problem that the discharge standard may need to be further improved after the completion of underground wastewater treatment plant, the combined treatment process of MBBR, magnetic coagulation sedimentation tank and denitrification deep bed filter was adopted in the Dongbu wastewater treatment plant in Shanwei City. The COD, BOD5, ammonia nitrogen and total phosphorus in effluent reached the class Ⅳ limit specified in the Environmental Quality Standards for Surface Water (GB 3838-2002), and the total nitrogen and SS met the first class A limit specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The effluent quality can be further improved by adjusting the carrier filling ratio of MBBR, modifying the operating conditions of denitrification deep bed filter. Due to the fluctuation of influent quality and quantity, precise aeration, intelligent dosing and intelligent management and control platform were adopted to achieve fine operation, which reduced the power consumption by approximately 7.8% and chemical consumption by approximately 9%, thus saved the operational cost.
Last Update:
2023-06-17