GONG Xuan-yi,WANG Zhe-xiao,WANG Shun,et al.Application of Super Magnetic Separation and BAF Combined Process in Source Sewage Emergency Control Project[J].China Water & Wastewater,2021,37(14 14):132-136.
Application of Super Magnetic Separation and BAF Combined Process in Source Sewage Emergency Control Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
14 14
Page:
132-136
Column:
Date of publication:
2021-07-17
- Keywords:
- source sewage emergency control; biological aeration filter; nitrogen and phosphorus removal; super magnetic separation; suspended solids
- Abstract:
- Due to the overload operation of a sewage plant, and restricted by factors such as land occupation and construction period, the combined process of super magnetic separation and non-clogging biological aeration filter(BAF) was finally selected for emergency treatment after comparison. The technical features, parameters, process flow, conditioning, operation key points are elaborated. The effluent quality has stably reached the first level A criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) since operation in 2018. The total reductions of COD, suspended solids, total phosphorus and ammonia nitrogen are 224.2 t, 29.2 t, 5 t, and 41.8 t, respectively. The investment cost is about 26.45 million yuan, the operating cost is about 1.08 yuan/m3 (excluding building costs), and about 880 600 yuan green taxes are saved. The practice shows that it can still play the role of high-quality emergency source control and pollution interception well under the constraints of occupation area and construction period, and has strong technical feasibility and certain economic benefits.
Last Update:
2021-07-19