UCT工艺在西安鱼化污水处理厂的设计应用与调试  

Design, Application and Commissioning of UCT Process in Xi’an Yuhua Wastewater Treatment Plant

作　　者：冯云刚 刘新安[2] 高荣宁[2] 李振川 崔健 FENG Yun-gang;LIU Xin-an;GAO Rong-ning;LI Zhen-chuan;CUI Jian(Beijing General Municipal Engineering Design&Research Institute Co.Ltd.,Beijing 100082,China;Xi'an Municipal Engineering Design&Research Institute Co.Ltd.,Xi'an 710068,China)

机构地区：[1]北京市市政工程设计研究总院有限公司,北京100082 [2]西安市政设计研究院有限公司,陕西西安710068

出　　处：《中国给水排水》2019年第24期66-69,共4页China Water & Wastewater

摘　　要：西安市鱼化污水处理厂设计规模为20.0×10~4m^3/d,主体工艺流程采用预处理+UCT+二沉池+高效沉淀池+精密过滤器+次氯酸钠消毒,剩余污泥经离心脱水至含水率为80%后外运,出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准。针对本工程进水TP、TN浓度高的特点,结合远期出水水质进一步提升的趋势,生化段选用脱氮除磷效果较好的UCT工艺。同时设计过程中充分考虑了地裂缝及周边现状棚户区对工程的影响,采取了相应的应对措施,总体设计布局与工艺参数选取可供类似污水厂设计时借鉴。The design scale of Xi’an Yuhua wastewater treatment plant was 20.0×10~4 m^3/d. The main technological process was combined by pretreatment + UCT + secondary sedimentation tank + high efficiency sedimentation tank + precision filter + sodium hypochlorite disinfection. The excess sludge was dewatered to 80% by centrifugation, and the effluent quality was required to meet the first level A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). In view of the high concentration of TN and TP in the influent and the trend of further improvement of the effluent quality in the long term, UCT process which was characterized by perfect nitrogen and phosphorus removal performance was selected in the biological section of the project. The influence of ground crack and surrounding shanty towns on the project was fully considered in the design process, and corresponding measures were taken. The overall design layout and the selection of process parameters could be used for reference in the design of similar wastewater treatment plants.

关 键 词：UCT 脱氮除磷 地裂缝 

分 类 号：TU992.3[建筑科学—市政工程]