闲置厌氧氨氧化污泥活性恢复试验  

Experiment on Activity Recovery of the Idle Anammox Sludge

作　　者：张黎 张磊 姜琦 李佳鑫 耿子威 ZHANG Li;ZHANG Lei;JIANG Qi;LI Jiaxin;GENG Ziwei(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang,China,110168;Shenyang Ecological Environment Testing Center,Liaoning Province,Shenyang,China,110165)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]辽宁省沈阳生态环境检测中心,辽宁沈阳110165

出　　处：《沈阳建筑大学学报（自然科学版）》2023年第5期955-960,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家水体污染控制与治理科技重大专项(2018ZX07601001)。

摘　　要：目的 研究实验室长期闲置厌氧氨氧化污泥的活性恢复手段,提升厌氧氨氧化污泥的再驯化效能,实现厌氧氨氧化工艺的快速启动,为工程应用提供参考。方法 使用UASB反应器,以室温下闲置时长约240 d的厌氧氨氧化污泥为研究对象,采用冷启动与热启动结合的方式,逐步提升反应器总氮容积负荷,监测反应过程中各氮素化合物浓度变化。结果 经过7 d室温启动与6 d热启动操作后,厌氧氨氧化污泥活性得以恢复,当反应运行到第17 d, UASB工艺中氨氮和亚硝态氮的最大去除率分别为79.26%和99.22%,污泥从黑灰色絮状逐渐变为红棕色颗粒状。结论 在连续流动试验中,成功实现了氨氮和亚硝态氮的同步去除,使用长期闲置厌氧氨氧化污泥可以较好地恢复厌氧氨氧化效能。The purpose of this paper is to study the means of activity recovery of long-term idle anaerobic ammonia oxidation sludge,to improve the re-taming efficiency of AO sludge,and to provide a reference for the rapid start-up and engineering application of the anammox process.In a UASB reactor with an anaerobic ammonia oxidation sludge that had been left unused for about 240 days at room temperature,the anaerobic ammonia oxidation reaction was initiated by a combination of cold-start and hot-start methods.The total nitrogen volumetric loading of the reactor was gradually increased and the changes in the concentration of nitrogen compounds was monitored during the reaction process.The anaerobic ammonia oxidation sludge activity was restored after 7 days of room temperature startup and 6 days of hot startup operation.When the reaction was operated on the 17th day,the maximum removal of ammonia nitrogen and nitrites nitrogen in the UASB process was 79.26%and 99.22%,respectively.It was observed that the sludge gradually changed from dark gray to reddish brown granular chapter.In the continuous flow test,the anaerobic ammonia oxidation efficacy,and the simulaneous removal of ammonia nitrogen and nitrite nitrogen were successfully achieved.

关 键 词：厌氧氨氧化 活性恢复 快速激活 启动方式 污泥特征 

分 类 号：TU992[建筑科学—市政工程]