MUNITANK工艺在北方用地受限市政污水厂的应用  

Application of the MUNITANK Process in a Municipal WWTP with Limited Land Use in Northern Region

作　　者：金敦 丁纯健 JIN Dun;DING Chun-jian(Shanghai Municipal Engineering Design InstituteCo.Ltd.,Shanghai 200092,China;SIIC Environmental Water Service Co.Ltd.,Weifang 261061,China)

机构地区：[1]上海市政工程设计研究总院<集团>有限公司,上海200092 [2]上实环境水务股份有限公司,山东潍坊261061

出　　处：《中国给水排水》2024年第22期68-72,共5页China Water & Wastewater

基　　金：上海市“科技创新行动计划”(23DZ1203504)。

摘　　要：大连泉水河污水处理厂(二期)设计规模为10.5×10^(4) m^(3)/d,面临水量水质波动大、用地紧张、低温等工程难点。采用改良型交替式内循环(MUNITANK)工艺进行二级处理,实现应对冲击负荷、强化生物脱氮除磷、节省外加碳源的目的,并通过集约式一体化池型节省占地,同时通过高密度沉淀池、滤布滤池、紫外线消毒池等三级处理设施进一步保证处理效果。该工程多年运行实践表明,出水各项指标均稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。该工程吨水投资为2 190.5元/m^(3)、运行能耗为0.26 kW·h/m^(3),均低于国内平均水平,表明MUNITANK工艺对于冲击负荷大、用地有限、处理要求高的大中型污水处理项目具有适用、高效、经济的特点,可为类似条件下的污水处理项目提供借鉴。The Dalian Quanshui River phase Ⅱ wastewater treatment plant(WWTP),designed for a capacity of 10.5×10^(4) m^(3)/d,faces challenges such as significant fluctuation of water quantity and quality,limited land availability,and low temperature.It employs the modified unified integrated tank(MUNITANK) as the secondary treatment process to cope with impact load,enhance biological nitrogen and phosphorus removal,and reduce the addition of external carbon sources,while using an intensive,integrated tank layout to save space.Tertiary treatments including high-density settling tanks,cloth filters,and ultraviolet disinfection tanks further ensure the treatment effectiveness.Years of operational results show that all effluent quality indicators consistently meet the first level A criteria in Discharge Pollutant Standards for Municipal Wastewater Treatment Plants(GB 18918-2002),with an investment of 2 190.5yuan/m^(3) and operational energy consumption of 0.26 kW·h/m^(3),both below the national average.This demonstrates the MUNITANK process' s efficiency,applicability,and cost-effectiveness for large and medium-sized WWTPs facing significant shock loads,limited land,and stringent treatment requirements,thus providing insights for similar WWTPs.

关 键 词：MUNITANK工艺 大中型污水处理厂 脱氮除磷 抗冲击负荷 节地 

分 类 号：TU992[建筑科学—市政工程]