摘要
在新开发的三槽交替反应器基础上接种厌氧反应器中的颗粒污泥,采用较高的进水负荷快速培养好氧颗粒污泥,考察了三槽交替反应器的运行效能,并进行微生物菌群结构分析。结果表明:在PLC自动控制条件下,反应器实现了周期性独立控制。经过32 d的培养,好氧颗粒污泥在厌氧颗粒污泥的基础上培养成功。在人工配水的条件下,氮、磷去除效能较低。通过改善进水碱度,污泥形态保持稳定,COD、氨氮和磷酸盐的平均去除率分别达到88%、47.80%和28.10%。好氧颗粒污泥微生物菌群结构与厌氧颗粒污泥有较大相似性,α、γ-Proteobacteria的相对丰度明显提高,好氧颗粒污泥中Sphaerotilus、Acidovorax、flavobacterium等菌属的热度(相对变化强度)较高,对好氧颗粒污泥的形成和稳定运行起到重要作用。
Granular sludge from anaerobic reactor was inoculated into three-tank reactor,a new developed progress,to cultivate aerobic granular sludge with high influent load.The operation efficiency of the three-tank reactor was investigated,and the microbial community structure of sludge samples were analyzed.The results showed that periodic independent control of the reactor under PLC was achieved.After 32 days,the aerobic granular sludge was successfully cultured on the basis of anaerobic granular sludge.Under the condition of artificial water distribution,the removal efficiency of nitrogen and phosphorus was low.By improving the alkalinity of inlet water,the sludge form remained stable.The average removal rate of COD,ammonia nitrogen and phosphate reached 88%,47.80%and 28.10%respectively.The microbial community structure of aerobic granular sludge was relatively similar to that of anaerobic granular sludge,the relative abundance ofαandγ-proteobacteria was significantly increased,and the heat-degree(relative change intensity)of Sphaerotilus,Acidovorax,Flavobacterium were relatively high in aerobic granular sludge,which played an important role in the formation and stable operation of aerobic granular sludge.
作者
吴传栋
黄婧
杨殿海
赵焱
刘源
谭绮娜
Wu Chuandong;Huang Jing;Yang Dianhai;Zhao yan;Liu Yuan;Tan Qina(Guangdong GDH water Co.Ltd.,Shenzhen 518021,China;School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Urban Water Resources and Environment,Harbin Institute of echnology,Harbin 150090,China;Kaiping GDH water Co Ltd.,Jiangmen 529331,China)
出处
《供水技术》
2021年第3期5-11,共7页
Water Technology
基金
中国博士后科学基金(2019M662831)。
关键词
三槽交替反应器
好氧颗粒污泥
运行效能
微生物菌群
three-tank reactor
aerobic granular sludge
removal efficiency
microbial population structure
