基质浓度对ABR反应器SAD协同脱氮除碳效能影响  

Effect of Substrate Concentration on SAD Collaborative Nitrogen and Carbon Removal Efficiency in an ABR Reactor

作　　者：张敏[1] 姜滢[1] 汪瑶琪 韦佳敏 陈重军[1,2,3,4] 沈耀良 ZHANG Min;JIANG Ying;WANG Yao-qi;WEI Jia-min;CHEN Chong-jun;SHEN Yao-liang(School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China;Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China;Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China)

机构地区：[1]苏州科技大学环境科学与工程学院,苏州215009 [2]江苏省水处理技术与材料协同创新中心,苏州215009 [3]江苏省环境科学与工程重点实验室,苏州215009 [4]江南大学江苏省厌氧生物技术重点实验室,无锡214122

出　　处：《环境科学》2018年第7期3254-3261,共8页Environmental Science

基　　金：国家自然科学基金项目(51508366;51578353);江苏省厌氧生物技术重点实验开放基金项目(JKLAB201701)

摘　　要：为改善厌氧氨氧化对总氮(TN)去除不完全和有机物对厌氧氨氧化胁迫的问题,采用厌氧折流板反应器(ABR),接种成熟的厌氧氨氧化污泥与城市污水处理厂厌氧污泥,通过不同基质浓度控制,构建厌氧氨氧化耦合反硝化系统(SAD),并考察不同进水基质(COD、NO-2-N、NH+4-N)浓度对耦合系统脱氮除碳效能的影响及污染物去除规律.结果表明,在ABR反应器中可实现厌氧氨氧化与反硝化的耦合反应,并缓解了有机物对厌氧氨氧化菌的抑制效应.当进水COD、NO-2-N和NH+4-N浓度为260、185和100 mg·L-1,比例为2.6∶1.85∶1时,三者出水浓度分别低于10、1.0和0.9 mg·L-1,TN去除率达到99%,实现系统的稳定运行和C、N污染物的超低排放.不同基质浓度和比例条件下,目标污染物去除基本在第1隔室完成,去除率均在75%以上,且厌氧氨氧化反应在SAD耦合系统脱氮中占主导地位.In order to solve the problem of declining total nitrogen（ TN） removal caused by anaerobic ammonium oxidation（ ANAMMOX） and the suppression of organic matter for ANAMMOX,the anaerobic baffled reactor（ ABR）,inoculating ANAMMOX sludge and anaerobic sludge from a municipal WWTP,was selected to construct system of ANAMMOX coupled denitrification（ SAD）by the control of different substrate concentration. The SAD was constructed to study the effects of different influent substrates（ COD,NO-2-N,NH＋4-N） on the performance of nitrogen and carbon removal in the coupled system and pollutant removal rules. The results showed that the coupling reaction was achieved in the ABR reactor and the inhibitory effect of organic compounds on anaerobic ammonium oxidation bacteria（ AAOB） was relieved. When influent concentrations of COD,NO-2-N,and NH＋4-N were 260,185,and100 mg·L^-1,respectively,which equates to a ratio of 2. 6∶ 1. 85∶ 1,the concentrations of these substances in the effluent decreased to10,1. 0,and 0. 9 mg·L^-1,respectively. The TN removal rate reached 99%,hence stable system operation and ultra-low emissions of carbon and nitrogen pollutants were achieved. Under different conditions of substrate concentrations and ratios,the targeted pollutants were generally eliminated in the first compartment,in which the removal rate reached higher than 75%,and ANAMMOX held the dominant position in the SAD coupled system.

关 键 词：厌氧氨氧化 反硝化 基质浓度 贡献率 协同作用 

分 类 号：X703.1[环境科学与工程—环境工程]