摘要
为了提高大蒜废水处理效能,采用AO工艺分析了不同进水条件下的污染物去除效果,明确微生物多样性及菌群结构与水质因子之间的关系。SBR反应器在高负荷和中负荷运行条件下COD、NH_(3)-N、TP去除率均在90%以上。此时,Bacteroidetes、Proteobacteria是大蒜废水活性污泥系统中的优势菌门,两者的总体细菌相对丰度占到了56.48%~98.41%,通过其脱氮除磷降解有机物的功能,使得污染物得到有效去除。中负荷运行时活性污泥微生物群落丰富度和多样性均优于高负荷运行,不同样品多样性存在差异。高负荷运行条件下的优势菌属为Chryseobacterium、Comamonas、Bdellovibrio、Brevundimonas、Soonwooa、Sphingobacterium;中负荷运行条件下的优势菌属为Macellibacteroides、Fluviicola、Saccharibacteria_genera_incertae_sedis、Petrimonas、Propionibacterium。Macellibacteroides、Chryseobacterium、Comamonas与COD、NH_(3)-N污染物降解呈正相关。
To improve the treatment efficiency of garlic wastewater,the AO process was used to analyze the removal efficiency of pollutants under different influent conditions.And the relationship between microbial diversity and bacterial community structure,and water quality factors was clarified.The removal rates of COD,NH_(3)-N,and TP are above 90%under high and medium load operation conditions of the SBR reactor,mainly due to the existences of Proteobacteria and Bacteroidete with the functions of nitrogen and phosphorus removal and organic degradation.And the relative abundance of the two bacterial species was 56.48%~98.41%.The richness and diversity of activated sludge microbial community under medium load operation were better than those under high load operation,and the diversity of different samples was different.The dominant bacteria under high-load operation conditions are Chryseobacterium,Comamonas,Bdellovibrio,Brevundimonas,Soonwooa,and Sphingobacterium.Under medium load operation,the dominant bacteria genera are Macellibacteroides,Fluviicola,Saccharibacteria_genera_incertae_sedis,Petrimonas,and Propionibacterium.Macellibacteroides,Chryseobacterium,and Comamonas were positively correlated with the degradation of COD and NH_(3)-N.
作者
由昆
沈东悦
周伟伟
刘振鹏
YOU Kun;SHEN Dongyue;ZHOU Weiwei;LIU Zhenpeng(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Department of Municipal and Equipment Engineering,Shandong Urban Construction Vocational College,Jinan 250103,China;Department of Quality evaluation and supervision,Shenyang Jianzhu University,Shenyang 110168,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2023年第5期129-134,共6页
Technology of Water Treatment
基金
国家水体污染控制与治理科技重大专项(2018ZX07601001)。
关键词
SBR
大蒜废水
AO
微生物
高通量测序
SBR
garlic wastewater
AO
bacterial diversity
high-throughput sequencing
