低进水负荷CASS工艺的启动与试运行  

Start and Commissioning of CASS Process with Low Influent Load

作　　者：俞晶 YU Jing

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2023年第3期133-136,M0013,M0014,共6页Urban Roads Bridges & Flood Control

基　　金：上海市科委基金资助科研项目(20230730100)。

摘　　要：为了解决新区新建污水厂普遍存在的启动初期进水水量和水质偏低导致调试周期长、出水水质不稳定等问题,从CASS工艺的特点出发,结合典型的污水厂案例,在对原设计的运行模式、运行周期、污泥负荷、混合液回流比等关键参数进行针对性地调整和优化后,CASS池能克服低进水负荷的前提下,在较短的时间内启动并在试运行阶段出水各项指标约能稳定达到设计标准。可为同类污水厂所面临的低水量负荷的启动和试运行提供借鉴。In order to solve the common problems of the newly built wastewater treatment plant(WWTP)in the New District,such as long commissioning period and unstable effluent quality caused by low influent flow and water quality in the initial start-up period,starting from the characteristics of the CASS process,and combined with the typical WWTP cases,the key parameters of operation mode,operating cycle,sludge load and mixed liquid return ratio in the original design are specially adjusted and optimized,and the CASS tank can overcome the low influent load.In a short period of time to start up and in the commissioning stage,each effluent indicator can reach the design standards stably,which can provide a reference for the start-up and commissioning of low water flow load faced by the similar WWTPs.

关 键 词：低负荷 CASS工艺 启动 试运行 优化 

分 类 号：TU992.4[建筑科学—市政工程]