装配式“A/O+磁混凝沉淀”工艺在城市溢流污水处理工程中的应用——以成都市某应急污水处理工程为例  

Application of Assembled “A/O + Magnetic Coagulation and Precipitation”Process in Urban Overflow Wastewater Treatment Plant--Take an Emergency Sewage Treatment Project in Chengdu as and Example

作　　者：熊超 胡练伟 XIONG Chao;HU Lian-wei(CscecScimee Set.&Tech.Co.,Ltd,Chengdu 610045,China)

机构地区：[1]中建环能科技股份有限公司,成都610045

出　　处：《四川环境》2022年第4期252-259,共8页Sichuan Environment

摘　　要：为缓解成都市某地区市政污水溢流问题,改善周边水环境质量,新建了规模为2.5×10^(4)m^(3)/d的应急污水处理工程。该工程采用“A/O+磁混凝沉淀”工艺,A/O生化反应池、二沉池、污泥浓缩池及磁混凝沉淀系统均采用快速装配式安装,以缩短建设周期。运行期间的监测数据表明,出水指标均满足《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准,其中的COD_(Cr)、NH_(3)-N和TP平均去除率分别为94.58%、98.52%和95.70%。该项目采用的组合工艺简单有效,出水感官效果好,具有一定的推广应用前景,并为以后的应急污水处理工程提供了案例支撑。In order solve the problem of municipal wastewater overflow in a certain area of Chengdu and improve the quality of surrounding water environment,an emergency wastewater treatment project with the design capacity as 2.5×10^(4)m^(3)/d was built.The combined process of Anoxic Oxic/Magnetic Coagulation precipitation was adopted in the emergency treatment,the A/O reaction tank,secondary sedimentation tank,sludge thickening tank and magnetic coagulation precipitation system of the project adopted a rapid assembly installation to shorten the construction period.The monitoring data during operation showed that the effluentindexes could meet the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002),the average removal rates of COD_(Cr),NH_(3)-N and TP were 94.58%,98.52%and95.70%,respectively.The combined process was simple and efficient,and the sensory effect was well.This process has a good prospect of application and promotion,and provides a case for the emergency sewage treatment project in the future.

关 键 词：A/O工艺 磁混凝沉淀 溢流污水 

分 类 号：TU992.3[建筑科学—市政工程] X703[环境科学与工程—环境工程]