MBBR工艺用于北方某污水厂提标改造的效果  

Impact of MBBR Process on Upgrade of a Wastewater Treatment Plant in Northern China

作　　者：刘超 吴红娟[2] 罗玖淇 陈国栋 徐瑞捷 周家中 LIU Chao;WU Hong-juan;LUO Jiu-qi;CHEN Guo-dong;XU Rui-jie;ZHOU Jia-zhong(Qiaodong Wastewater Treatment Plant,Shijiazhuang Wastewater Treatment Co.Ltd.,Shijiazhuang 050026,China;School of Safety Engineering and Emergency Management,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi 832003,China;North China Municipal Enginering Design&Research Institute Co.Ltd.,Tianjin 300381,China;Qingdao SPRING Water Treatment Co.Ltd.,Qingdao 266510,China)

机构地区：[1]石家庄污水处理有限公司桥东污水处理厂,河北石家庄050026 [2]石家庄铁道大学安全工程与应急管理学院,河北石家庄050043 [3]石河子大学水利建筑工程学院,新疆石河子832003 [4]中国市政工程华北设计研究总院有限公司,天津300381 [5]青岛思普润水处理股份有限公司,山东青岛266510

出　　处：《中国给水排水》2025年第7期76-81,共6页China Water & Wastewater

摘　　要：北方某污水处理厂一期设计规模为50×10^(4)m^(3)/d,设计出水水质执行国家一级A标准,需要提标至《子牙河流域水污染物排放标准》(DB 13/2796—2018)中重点控制区排放限值标准。该污水厂采用移动床生物膜反应器(MBBR)工艺进行升级改造,改造后生化池出水COD、TP、NH4+-N、TN分别为(16.2±3.9)、(0.2±0.2)、(0.18±0.1)、(8.1±2.2)mg/L。改造后出水水质稳定优于设计排放标准,原水碳源利用率提高了63.14%,减少了36.5%的外碳源投加量和43.4%的聚合氯化铝(PAC)投加量。系统中的优势硝化菌属为Nitrospira,其在生物膜中的相对丰度达到7.31%,是活性污泥中的6.5倍。基于MBBR的原位改造实现了系统脱氮与除磷能力的同步提升,保障了出水水质的稳定达标,同时降低了运行费用。The design capacity of the phaseⅠproject of a wastewater treatment plant in northern China is 50×10^(4)m^(3)/d.The effluent quality is designed to meet the first level A criteria specified in the national discharge standard,but it needs to be upgraded to comply with the discharge limit for key control areas as specified in Ziya River Basin Water Pollutants Discharge Standards(DB 13/2796-2018).The project employed the moving bed biofilm reactor(MBBR)process for its upgrade and transformation.After transformation,the chemical oxygen demand,total phosphorus,ammonia nitrogen and total nitrogen in the effluent from the biochemical tank were(16.2±3.9)mg/L,(0.2±0.2)mg/L,(0.18±0.1)mg/L and(8.1±2.2)mg/L,respectively.In addition,the effluent quality was stable and better than the design discharge standard.The utilization rate of the carbon source in the raw water increased by 63.14%,while the dosage of external carbon sources and polyaluminum chloride(PAC)was reduced by 36.5%and 43.4%,respectively.The predominant nitrifying bacteria in the system was Nitrospira,with a relative abundance of 7.31%in the biofilm,which was 6.5 times higher than that in the activated sludge.The MBBR-based in-situ transformation achieved concurrent enhancement of the system’s nitrogen and phosphorus removal capabilities,ensured stable and compliant effluent quality,and reduced operation costs.

关 键 词：移动床生物膜反应器(MBBR) 原位提标改造 硝化性能 生物膜 降耗 

分 类 号：TU992[建筑科学—市政工程]