LIUJuan,XIANGXu-wen,SHENJun,et al.Application of Bardenpho, MBBR and Magnetic Flocculation and Precipitation Process in the Upgrading and Reconstruction of a Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(4):70-74.
Application of Bardenpho, MBBR and Magnetic Flocculation and Precipitation Process in the Upgrading and Reconstruction of a Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第4期
Page:
70-74
Column:
Date of publication:
2023-02-17
- Abstract:
- The design scale of a wastewater treatment plant in Shandong is 10×104 m3/d, and the treatment process consisted of pretreatment, hydrolysis, A2/O, flocculation and inclined plate settler, fiber rotary table filter and contact disinfection. The effluent quality was required to meet the first level A limit specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). However, the new discharge standard requires that the COD, NH3-N, TN and TP in effluent were no more than 30 mg/L, 1.5 mg/L, 10 mg/L and 0.3 mg/L, respectively. Therefore, the combined process of Bardenpho, MBBR and magnetic flocculation and precipitation was adopted to upgrade the wastewater treatment plant. The process maximized the use of the existing tanks, and completed the upgrading project under the premise of uninterrupted wastewater treatment, which saved the investment and improved the treatment efficiency. The effluent quality stably met the discharge standard, and the whole system was more impact-resistant and operated more stably.
Last Update:
2023-02-17