西北某高浓度城市污水处理厂SBR工艺提标改造设计  

Design of SBR Process for Upgrading and Reconstruction of an Urban WWTP with High Concentration Wastewater in Northwest China

作　　者：景兆华 王向举 刘海茹 马小蕾 康金虎 JING Zhaohua;WANG Xiangju;LIU Hairu;MA Xiaolei;KANG Jinhu(CSCEC AECOM Consultants Co.,Ltd.,Lanzhou 730000,China;China Water Affairs Group Co.,Ltd.,Baoji 721000,China)

机构地区：[1]中国市政工程西北设计研究院有限公司,甘肃兰州730000 [2]中国水务集团有限公司,陕西宝鸡721000

出　　处：《净水技术》2023年第4期169-175,共7页Water Purification Technology

摘　　要：随着污染物排放标准的进一步提高,原有采用序批式间歇活性污泥(SBR)工艺的污水处理厂面临提标改造。文中以西北某高浓度城市污水处理厂提标改造工程为例,对该厂原SBR工艺提标改造方案及实际运行效果进行了介绍,出水水质由《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级B标准提标至一级A标准。原SBR工艺改造为功能分区独立、运行成本低、出水水质稳定、设备利用率高的AAO工艺;增加预处理设施;强化生物处理并设置二沉池;后置均质滤料滤池。改造完成后,该厂出水水质各项指标均优于GB 18918—2002中的一级A标准,可为西北该类型污水处理厂的提标改造提供实际工程借鉴。The original wastewater treatment plant(WWTP)using the sequencing batch reactor activated sludge process(SBR)is facing the upgrading of the standard with the further improvement of the pollutant discharge standard.Taking the upgrading project of an urban WWTP with high concentration wastewater in northwest China as an example,the upgrading scheme of SBR process and the actual operation effect of the plant are introduced in this paper.The effluent quality is upgraded from first class B criteria to first class A criteria of Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants(GB 18918—2002).The original SBR process is transformed into AAO process with independent function zones,low operation cost,stable effluent quality and high equipment utilization rate.In the new process,pretreatment facilities,enhanced biological treatment,secondary sedimentation tank and a rear homogeneous material filter are added.After the renovation,all the effluent quality indices of the WWTP are better than the first class A criteria of GB 18918—2002,which can provide practical engineering reference for the upgrading of this type of WWTPs in northwest China.

关 键 词：SBR工艺 AAO工艺 提标改造 均质滤料 微絮凝过滤 

分 类 号：TU992[建筑科学—市政工程]