光合细菌强化SBR系统处理垃圾渗滤液及生物群落结构分析  

TREATMENT OF LANDFILL LEACHATE BY PHOTOSYNTHETIC BACTERIA IN SBR SYSTEM AND ANALYSIS ON BIOLOGICAL COMMUNITY STRUCTURE

作　　者：徐芯渝 李伟民[1] 叶姜瑜[1] XU Xin-yu;LI Wei-min;YE Jiang-yu(Faculty of Urban Construction and Environment Engineering,Chongqing University,Chongqing 400045,China)

机构地区：[1]重庆大学城市建设与环境工程学院

出　　处：《环境工程》2020年第1期99-104,共6页Environmental Engineering

摘　　要：从垃圾渗滤液中分离得到一株具有脱氮除磷能力的光合细菌R1,经鉴定为沼泽红假单胞菌(Rhodopseudomonas palustris),将其投加到SBR系统中,研究对其强化处理垃圾渗滤液的效果,并解析反应器中的菌群构成。结果表明:添加了光合细菌的实验组SBR反应器对COD、NH+4-N和TP去除率分别达到76.895%、65.964%和94.036%,且污泥产量明显少于对照组。高通量测序结果表明:变形菌门、绿弯菌门、厚壁菌门、酸杆菌门和拟杆菌门为主要优势菌门。在Caldilineaceae、Acinetobacter、Pseudomonas等共同作用下,R1不仅能够稳定存在于活性污泥中,还能够有效改善活性污泥中微生物群落结构,提升其脱氮除磷的性能。A photosynthetic bacteria R1 with nitrogen and phosphorus removal ability was isolated from the landfill leachate and identified as Rhodopseudomonas palustris.R1 was added to a SBR system to study the effect of strengthening the treatment of landfill leachate and analyze the composition of the bacteria community in the reactor.The results showed that the removal rates of COD,NH+4-N and TP were 76.895%,65.964%and 94.036%,respectively,in the SBR reactor with photosynthetic bacteria in the experimental group,and the sludge yield was significantly lower than that of the control group.The results of high-throughput sequencing showed that Proteobacteria,Chlorobacteria,Firmicutes,Acidobacteria and Bacteroidetes were the dominant bacteria.Under the combined action of Caldilineaceae,Acinetobacter,Pseudomonas,etc.,R1 could not only stably exist in the activated sludge,but also effectively improve the microbial community structure in the activated sludge and improve its nitrogen and phosphorus removal performance.

关 键 词：活性污泥法 垃圾渗滤液 光合细菌 高通量测序 群落结构 

分 类 号：X703[环境科学与工程—环境工程]