改良Bardenpho+浸没式超滤工艺在污水处理厂的应用  

Application of Improved Bardenpho and Submerged UF Process in WWTP

作　　者：周玄月 ZHOU Xuanyue(Wuhan Urban Drainage Development Co.,Ltd.,Wuhan 430062,China)

机构地区：[1]武汉市城市排水发展有限公司,湖北武汉430062

出　　处：《净水技术》2024年第2期168-175,共8页Water Purification Technology

摘　　要：华中地区某市政污水处理厂已建一、二期工程设计规模为20万m^(3)/d,出水执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。本次三期扩建工程设计规模为20万m^(3)/d,是国内首个采用“改良Bardenpho+浸没式超滤膜”工艺的大型市政污水处理厂。2022年1月—12月,出水各项指标稳定达到一级A标准。其中,BOD_(5)、COD_(Cr)、氨氮概率值为100%、99.7%、91.7%,达到《地表水环境质量标准》(GB 3838—2002)中Ⅲ类标准,TP稳定达到地表水Ⅳ类标准。该组合工艺结合了生化处理系统和膜处理系统两者的优点,抗冲击负荷能力强、占地面积小。在用地面积很紧张、尾水提标和再生水回用需求进一步提高的大趋势下,该组合工艺因具备实现更高、更稳定的出水能力,从而在新、改、扩建市政污水处理厂中具有广阔的运用前景。The design scale of the existing phase I and phaseⅡproject of a wastewater treatment plant(WWTP)in central China is 2×10^(5) m^(3)/d,and the effluent quality is required to meet the first class A criteria discharge standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002).The phaseⅢexpansion project has a design scale of 2×10^(5) m^(3)/d,which is the first large-scale municipal WWTP at home to adopt the modified Bardenpho and submerged ultrafiltration membrane process.From January to December,2022,all indices of the effluent meet the first class A criteria discharge standard.Among them,the probability values of BOD_(5),COD_(Cr) and ammonia nitrogen are 100%,99.7%and 91.7%respectively,which meet the classⅢlimit specified in Environmental Quality Standards for Surface Water(GB 3838—2002),and the TP in effluent meet the class IV discharge standard.The combined process demonstrates the advantages of both the biochemical treatment system and the membrane treatment system,namely strong impact load resistance and small footprint area.In the context of limited land area,stricter effluent discharge standard and increasing demand for the reuse of recycled water,the combined process has the ability to achieve higher and more stable effluent quality,and has a broad application prospect in newly-built municipal WWTPs and reconstruction and extension of existing municipal WWTPs.

关 键 词：污水处理厂 扩建工程 改良Bardenpho 浸没式超滤膜 一级A排放标准 

分 类 号：TU992[建筑科学—市政工程]