加砂高效沉淀池处理城市初期雨水  

Application of high-efficiency sediment tank with microsand in urban rainwater treatment

作　　者：张锋 霍九坤 杨墨 李璐 李伟进 淦方茂 ZHANG Feng;HUO Jiukun;YANG Mo;LI Lu;LI Weijin;GAN Fangmao(Central and Southern china Municipal Engineering Design&Research institute Co.,Ltd.,Wuhan 430010,China;Wuhan Municipal Construction Group Co.,Ltd.,Wuhan 430023,China;Yangtze Ecology and Environment Co.,Ltd.,Wuhan 430010,China;Veolia Water Solutions&Technologies(Beijing)Co.,Ltd.,Beijing 100004,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,武汉430010 [2]武汉市市政建设集团有限公司,武汉430023 [3]长江生态环保集团有限公司,武汉430010 [4]威立雅水务工程(北京)有限公司,北京100004

出　　处：《给水排水》2023年第S01期554-557,共4页Water & Wastewater Engineering

摘　　要：某城市初期雨水处理厂设计规模25万m^(3)/d,采用加砂高效沉淀池作为核心处理工艺。运行结果表明,加砂高效沉淀池雨天时能在15 min内启动并稳定运行,具备良好应对初雨处理厂随机间歇启动运行的能力。稳定运行期间,出水SS、COD和TP分别稳定在20、40和0.5 mg/L以下,平均去除率分别稳定达到82%、72%和68%,SS、COD和TP指标稳定达到一级B水质标准。加砂高效沉淀池可以作为稳定可靠的雨水在线处理设施。One urban rainwater treatment plant with a design scale of 25×10^(4)m^(3)/d,adopted the main process of high-efficiency sediment tank with microsand.The operation results show that it can be started and operated stably within 15min in rainy days,which can effectively cope with the random intermittent operation of the rainwater treatment plant.During the stable operation,the effluent SS,COD and TP are stable below 20mg/L,40mg/L and 0.5mg/L,respectively,and the average removal rate is stable at 82%,72%and 68%,respectively.The SS,COD and TP concentration of effluent are stable and complies the GB 18918-20021Bdischarge standard.It can be used as a stable and reliable online treatment facility for rainwater.

关 键 词：加砂高效沉淀池 雨水处理 微砂 SS COD TP 

分 类 号：TU992[建筑科学—市政工程]