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机构地区:[1]四川大学建筑与环境学院,四川成都610065
出 处:《中南大学学报(自然科学版)》2014年第5期1740-1745,共6页Journal of Central South University:Science and Technology
基 金:国家高技术研究发展计划("863"计划)项目(2011AA060905);国际科技合作与交流专项(2012DFG91520)
摘 要:采用6个相同的序批式反应器(SBR),以好氧硝化-厌氧氨氧化和直接厌氧氨氧化2种运行方式,分别以河岸带污泥、好氧污泥和厌氧污泥为接种污泥启动厌氧氨氧化反应器。研究结果表明,采用好氧硝化-厌氧氨氧化方式时,接种河岸带污泥和好氧污泥的反应器分别在第110天和165天实现了厌氧氨氧化反应;接种河岸带污泥的反应器启动更快,对氨氮和亚硝酸盐氮的去除率分别可达94%和99%,接种好氧污泥的反应器对氨氮和亚硝酸盐氮的去除率最高仅为53%和67%;接种厌氧污泥的反应器并未发生明显的厌氧氨氧化反应。直接以厌氧氨氧化方式运行的反应器,3类种泥都培养了190 d,没有出现厌氧氨氧化现象。Inoculated with riparian sediments, aerobic sludge and anaerobic sludge respectively, six sequencing batch reactors(SBR) were started-up with two operation modes, aerobic nitrification-anammox and direct anammox. The results show that using the way of aerobic nitrification-anammox, reactors inoculated with riparian sediments and aerobic sludge, respectively, achieve the anaerobic ammonia oxidation reaction after operation for 110 d and 165 d. The reactor inoculated with riparian sediments is started-up more rapidly than that for the aerobic sludge, and its NH4 +-N and NO2--N removal efficiencies reach 94% and 99%, respectively. The NH4 +-N and NO2--N removal efficiencies of aerobic sludge reactor are just 53% and 67% at most. However, the reactor inoculated with anaerobic sludge fails to start-up. Under the condition of direct anammox, three reactors are not able to culture anammox bacteria after operation for 190 d.
分 类 号:X703[环境科学与工程—环境工程]
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