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盐度对MBR处理高氨氮废水的运行及微生物群落影响研究

作者：叶芳凝，石先阳

单位：安徽大学资源环境与工程学院，安徽合肥，230601

关键词： MBR；高氨氮；盐度；微生物群落

DOI号：

分类号： X703.1

出版年,卷(期):页码： 2018,38(5):77-83

摘要：

通过运行一体式好氧膜生物反应器（MBR），研究盐度的变化（0%-6%）对MBR高氨氮废水处理及其膜污染和微生物群落变化的影响。结果表明，随进水盐度增加MBR的NH4+-N去除率降低、氨氧化速率（AOR）下降；膜上污泥中胞外聚合物（EPS）的含量增加，跨膜压差（TMP）持续增加，膜污染速率加快；高通量测序结果证实0.5%盐度时MBR微生物群落最稳定，而高盐度导致其微生物群落多样性降低。

An integrated aerobic membrane bioreactor (MBR) was operated. The effect of increasing salinity (0%-6%) on the treatment of high ammonia nitrogen wastewater and its membrane fouling and microbial community change in MBR were explored. The results showed that the ammonia removal rate and ammonia oxidation rate decreased with increasing in the salinity, but a reverse trend was observed for the content of extracellular polymer in membrane fouling, the transmembrane pressure difference and the membrane fouling rate. The results from high throughput sequencing demonstrated that the microbial community in MBR was the most stable at salinity of 0.5%, whereas high salinity might lead to decrease in the diversity of microbial community.

基金项目：

国家自然科学基金项目（51278001）

作者简介：

参考文献：

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