摘要
为探究不同菌剂对黑臭水体的修复效果,揭示研究过程中微生物群落变化规律,采用不同配方菌剂对黑臭水体进行修复,探讨不同菌剂对上覆水、底泥和微生物的影响。结果表明:投加菌剂组上覆水pH均略高于试验前;化学-复合微生物菌剂组上覆水DO浓度略低于空白组(6.95 mg/L),且上覆水NH+4-N和TP去除率分别达到86.60%和66.07%,底泥酸可挥发性硫和有机质去除率分别达到79.20%和52.71%,去除效果均明显优于其他试验组;高通量测序表明,投加菌剂组底泥中硝化、反硝化细菌和有机质降解类细菌均具有较高相对丰度,且Vicinamibacterales下的某属在化学-复合微生物菌剂组中的相对丰度明显高于其他试验组(1.07%~2.18%)。研究显示化学-复合微生物菌剂对黑臭水体具有良好修复效果。
In order to explore the remediation effect of different bacterial agents on black and odorous water bodies,and reveal the changing law of microbial communities during the research process,different formulations of bacterial agents were used to restore black and odorous water bodies,and the effects of different bacterial agents on overlying water,sediment and microorganisms were discussed.The results showed that the pH of the overlying water in the bacterial agent group was slightly higher than that before the experiment.DO concentration in the overlying water of the chemical-composite microbial agent group was slightly lower than that of the blank group(6.95 mg/L),and the removal rates of NH4+-N and TP in the overlying water reached 86.60%and 66.07%,while the removal rates of volatile sulfur(AVS)and organic matter in the sediment reached 79.20%and 52.71%,respectively.The removal effects were significantly better than other experimental groups.High-throughput sequencing showed that nitrifying bacteria、denitrifying bacteria and organic matter degrading bacteria in the sediment of the microbial inoculum group had high relative abundance,and the relative abundance of a genus under Vicinamibacterales in the chemical-compound microbial inoculum group was significantly higher than that in other experimental groups(1.07%-2.18%).The results of this study indicate that the chemical composite microbial agent has a good remediation effect on black and odorous water bodies.
作者
陈世杰
汪凯
谭勇
刘思韵
周金艳
裴昌盈
黄铭涛
李柏林
CHEN Shijie;WANG Kai;TAN Yong;LIU Siyun;ZHOU Jinyan;PEI Changying;HUANG Mingtao;LI Bolin(CCTEG Chongqing Engineering(Group)Co.,Ltd.;School of Resources and Environmental Engineering,Wuhan University of Technology)
出处
《环境工程技术学报》
CAS
CSCD
北大核心
2023年第6期2184-2191,共8页
Journal of Environmental Engineering Technology
基金
中煤科工重庆设计研究院(集团)有限公司自立科技项目(2022-04-51)
国家自然科学基金项目(42277055)。
关键词
微生物菌剂
黑臭水体
底泥修复
微生物群落结构
microbial agents
black and odorous water body
sediment remediation
microbial community structure
