厌氧氨氧化无纺滤布生物膜反应器的运行  

Performance of ANAMMOX bio-film reactor utilizing non-woven fabric carriers

作　　者：王勇[1] 黄勇[1] 袁怡 李祥[1] 曹贵华[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,苏州215011

出　　处：《环境工程学报》2009年第6期1015-1018,共4页Chinese Journal of Environmental Engineering

基　　金：江苏省自然科学基金资助项目(BK2002043);苏州科技学院青年教师基金项目(ZD964);江苏省环境科学与工程重点实验室开放课题(ZD200102)

摘　　要：氧气是厌氧氨氧化菌的抑制因素，通过无纺滤布生物膜系统内部形成适合厌氧氨氧化菌的厌氧环境，运行62d，实现0．617kgN／（m^3·d）氮容积去除负荷，稳定运行阶段氨氮和亚硝氮的去除率分别为97．9％和98．7％；98mgN／LNO^2-—N经24h接触产生完全抑制，通过将进水亚硝氮浓度降至20～40mgN／L，运行31d，成功恢复厌氧氨氧化活性，试验末期氮容积去除负荷为O．641kgN／（m^3·d）。ANAMMOX bacteria is sensitive to oxygen which can completely inhibit its activity. Concentration of dissolved oxygen in wastewater along the width of bio-film decreases gradually, so it is suitable for ANAMMOX bacteria at the inner part of bio-film. By utilizing non-woven fabric carriers as a fixed bed for ANAMMOX bacteria,it was successful to achieve 0. 617 kg N/（m^3· d） volume loading of removal nitrogen after operation of 62 days. During the steady running period, average removal rates of ammonia nitrogen and nitrite nitrogen reached 97.9% and 98.7% respectively. In addition, the ANAMMOX process was completely inhibited by nitrite concentration of 98 mg N/L after 24 hours exposure, afterwards, by decreasing the influent nitrite concentration to 20 -40 mg N/L, it took 31 days to successfully restore ANAMMOX activity, finally reaching 0. 641 kg N/（m^3· d） volume loading of removal nitrogen.

关 键 词：厌氧氨氧化 氮容积去除负荷 无纺滤布生物膜反应器 NO2--N抑制 

分 类 号：X703.1[环境科学与工程—环境工程]