生物转鼓去除苯乙烯废气的工艺优化及微生物群落分析  

Process optimization and microbial community analysis of styrene waste gas removal by rotating drum biofilter

作　　者：贯文瑶 周宿安 俞国英 张奕凯 沙昊雷[1] GUAN Wenyao;ZHOU Su’an;YU Guoying;ZHANG Yikai;SHA Haolei(College of Biological&Environmental Sciences,Zhejiang Wanli University,Ningbo Zhejiang 315100;Zhejiang Jin’e Ecological Construction Co.,Ltd.,Ningbo Zhejiang 315100)

机构地区：[1]浙江万里学院生物与环境学院,浙江宁波315100 [2]浙江金峨生态建设有限公司,浙江宁波315100

出　　处：《环境污染与防治》2024年第8期1123-1127,共5页Environmental Pollution & Control

基　　金：宁波市公益类科技计划项目(No.2021S143);浙江省一流学科“生物工程”学生创新项目(No.CX2023004)。

摘　　要：在活性污泥中筛出高效复合菌剂用于生物转鼓去除苯乙烯废气。通过单因素实验考察NaCl质量分数、pH、温度、转速和气体流量对生物转鼓去除苯乙烯废气的影响,发现前3者才有显著影响(P<0.05)。进一步对这3种因素进行响应面优化实验,发现温度影响最小,pH影响最大。当pH为7.0、温度为33.46℃、NaCl质量分数为0.97%时,苯乙烯去除率最大,达到96.49%。微生物群落分析表明,生物转鼓中的优势菌门为变形菌门(Proteobacteria),相对丰度约72%;优势菌属为假单胞菌属(Pseudomonas)和罗河杆菌属(Rhodanobacter),相对丰度分别为34.86%、7.69%。High-efficiency composite strain agent was screened from active sludge and used to remove styrene waste gas by rotating drum biofilter.Single factor experiments were conducted to investigate the effect of NaCl mass fraction,pH,temperature,ratating speed and gas volume flow rate on styrene removal efficiency,and the results showed that the first 3 factors had significant influence on the styrene degradation(P<0.05).Further,response surface optimization experiment was used to optimize the first 3 factors.Among them,temperature had the least influence,but pH the most.When pH was 7.0,temperature was 33.46℃,and NaCl mass fraction was 0.97%,the styrene removal rate reached the peak of 96.49%.Microbial community analysis showed that Proteobacteria was dominant bacterial phylum in ratating drum biofilter,with the relative abundance of about 72%.Pseudomonas and Rhodanobacter were efficient genus,with the relative abundance of 34.86%and 7.69%,respectively.

关 键 词：复合菌剂 生物转鼓 苯乙烯废气 响应面优化实验 

分 类 号：X783[环境科学与工程—环境工程] X172