前置A_2NSBR工艺系统的启动特性研究  

Start-up characteristics of the pre-A_2 NSBR Process

作　　者：赵伟华[1] 王梅香[1] 吕冬梅[1] 张勇[1] 潘聪[1] 黄宇[1] 彭永臻[1] ZHAO Wei-hua;WANG Mei-xiang;Lv Dong-mei;ZHANG Yong;PAN Cong;HUANG Yu;PENG Yong-zhen(Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China)

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室北京市污水脱氮除磷处理与过程控制工程技术研究中心,北京100124

出　　处：《中国环境科学》2016年第9期2689-2695,共7页China Environmental Science

基　　金：国家自然科学基金(51578014);北京市教委资助项目

摘　　要：以实际低C/N生活污水(C/N为3.85)为研究对象,重点研究了按照厌氧/缺氧/硝化时序运行的新型前置A_2NSBR工艺系统的启动特性.结果表明,采用除磷A_2SBR和硝化N-SBR先单独启动后耦合运行的方式能够实现快速启动,系统在N-SBR中维持稳定的硝化,在A2SBR中实现了以NO_3^-N为电子受体的反硝化除磷,系统连续运行45d后达到稳定,各项出水指标COD、NH_4^+-N、TN、TP平均值分别为33.82mg/L、0.85mg/L、13.56mg/L,、0.3mg/L,相应的去除率分别为84.31%、98.41%、76.81%、93.87%,各项出水指标达到国家《城镇污水处理厂污染物排放标准GB 18918-2002》中的一级A标准.FISH实验表明,PAOs成为A_2SBR系统中的优势菌群,占全菌比例上升到14.77%.The start-up characteristics of the pre-A2NSBR (anaerobic/anoxic/aerobic nitrification) system wereinvestigated to treat low C/N municipal wastewater (C/N=3.85). The start-up of the system could be quickly achieved bythe strategy that the A2 SBR and the N-SBR was first started separately then was operated jointly, the nitrification waswell achieved in the N-SBR, and denitrifying phosphorus removal was realized in the A2 SBR with the NO3-N as theelectronic accepter. The effluent quality index of COD、NH4+-N、TN、TP was 33.82mg/L、0.85mg/L、13.56mg/L、0.3mg/L,with corresponding removal efficiency was 84.31%、98.41%、76.81%、93.87%, respectively, which meet the first Adischarge standard in china (GB 18918~2002) after continuous operation of 45days. FISH confirmed that PAOs was thedominant bacteria in the pre-A2 NSBR system and accounted for 14.77% of the total bacteria.

关 键 词：前置A2NSBR工艺 反硝化除磷 快速启动 双污泥系统 生物膜 

分 类 号：X703[环境科学与工程—环境工程]