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IAMBR处理高盐污水的效能及其微生物群落结构分析

作者：张磊

单位：山东省油田采出水处理及环境污染治理重点实验室，中石化石油工程设计有限公司，山东东营 257026

关键词：间歇曝气膜生物反应器（IAMBR）；高盐生活污水；微生物群落结构

DOI号：

分类号： X703

出版年,卷(期):页码： 2020,40(5):101-110

摘要：

采用间歇曝气膜生物反应器（intermittently aerated  membrane  bioreactor，IAMBR）处理模拟含盐生活污水，研究盐度在高浓度范围内变化时对反应器运行效能及微生物群落结构的影响。结果表明，当进水盐度逐渐增加但低于20 g/L时，反应器运行稳定，出水效果良好，总有机碳（TOC）、氨氮（NH4+-N）和总氮（TN）去除率分别在90 %以上，95 %以上及75 %以上，出水硝态氮较低且保持稳定；当盐度增加至 35 g/L时，反应器的TOC、NH4+-N和TN去除率明显下降，分别下降至80 %、70 %和50 %，出水水质变差，出水硝态氮波动较大。出水亚硝态氮不随盐度变化而变化，含量在反应的任何阶段均较低。总细菌和氨氧化细菌（AOB）的PCR-DGGE分析表明，随着进水盐度的增加，系统内的微生物群落结构变化较大，优势微生物变化较大，亚硝酸菌属类AOB（Nitrosomonas）的含量有所减少。

ntermittent aerated membrane bioreactor (IAMBR) was used to treat salinity municipal sewage, and the effects of salinity in the high concentration range on the IAMBR and the microbial community structure were studied. The results showed that when the salinity was lower than 20g/L, the IAMBR was operated stably and the effluent effect was good, and the removal rates of TOC, NH4+-N and TN were above 90%, 95% and 75%, respectively，and the nitrate nitrogen in the effluent was low and stable. When salinity was increased to 35g/L, the quality of effluent was deteriorated, and the removal rates of TOC, NH4 + -N and TN were reduced to 80%, 70% and 50%, respectively, and the nitrate nitrogen in the effluent fluctuated greatly. The nitrite nitrogen in the effluent did not varied with the increase of salinity, and the content was low in any stage of the reaction process. PCR-DGGE analysis of total bacteria and ammonia oxidizing bacteria (AOB) showed that with the increase of the influent salinity, the dominant microorganisms in the system changed and the content of AOB ((Nitrosomonas) was reduced.

基金项目：

中国石化集团公司科技攻关项目“海上油田采岀水处理回用技术研究”(318018-1)；山东省重点研发计划项目“基于MBR微生物群感效应的工程菌构建及其膜污染自调节驱散关键技术研究”（2018GSF117026）；国家自然科学基金“聚驱采油废水超滤处理中膜过滤性能不可逆衰退微观机制及调控研究”（51808257）

作者简介：

张磊（1973－），男，山东烟台人，毕业于中国石油大学（华东），本科，高级工程师，主要从事油田注水及采出水处理方面的研究工作；E-mail：395660508@qq.com。

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