磁场真菌生物滴滤器去除三氯乙烯废气的研究  

Removal of Trichloroethylene by a Magnetic Field-Fungal Biotrickling Filter

作　　者：王曼凝 颜廷春 耿炎 尹成日[2] 权跃[3] WANG Man-ning;YAN Ting-chun;GENG Yan;YIN Cheng-ri;QUAN Yue(School of Agricultural,Yanbian University,Yanji Jilin 133002,China;School of Sciences,Yanbian University,Yanji Jilin 133002,China;School of Geography and Marine Sciences,Yanbian University,Yanji Jilin 133002,China)

机构地区：[1]延边大学农学院,吉林延吉133002 [2]延边大学理学院,吉林延吉133002 [3]延边大学地理与海洋科学学院,吉林延吉133002

出　　处：《西南大学学报（自然科学版）》2021年第5期172-181,共10页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金项目(51968073,21966031);吉林省教育厅项目(JJKH20191127KJ).

摘　　要：构建了磁场真菌生物滴滤器,接种经驯化的真菌,以木片为填料,考察了不同磁场强度(MFI),不同三氯乙烯(TCE)进气质量浓度条件下,系统的去除率(RE)和去除容量(EC),并分析了真菌群落结构和功能.结果表明:不同MFI对TCE的处理效率为MFI 20.0 mT>MFI 60.0 mT>MFI 80.0 mT>MFI 0 mT.低磁场强度MFI 20.0 mT对TCE的处理效果最好,TCE的质量浓度分为低进气质量浓度370 mg/m^(3),变质量浓度500~900 mg/m^(3),高质量浓度1000 mg/m^(3),RE和ECmax分别为:75.9%,2548.1 mg/m^(3)h;67.4%~46.1%,3684.3 mg/m^(3)h和52.9%,4854.1 mg/m^(3)h.高通量测序结果表明,不同磁场强度对真菌群落结构影响明显,真菌丰富度为MFI 0 mT>MFI 80.0 mT>MFI 60.0 mT>MFI 20.0 mT.优势门为Ascomycota,丰度为90.82%(MFI 20.0 mT)>83.17%(MFI 60.0 mT)>79.37%(MFI 80.0 mT)>51.67%(MFI 0 mT).A fungal biotrickling filter(BTF)packed with wood chipswas employed to treat trichloroethylene(TCE)gas under different magnetic field intensities(MFI),and the relationship between fungal community structure and function was analyzed.The results showed thatthe removal performances followed the order:MFI 20.0 mT>MFI 60.0 mT>MFI 80.0 mT>MFI 0 mT.MFI 20.0 mT achievedthe best removal performances.When TCE concentration was set at approximately 370 mg/m^(3),500 to 900 mg/m^(3) and 1000 mg/m^(3),the corresponding removal efficiencies(RE)and maximum elimination capacities(ECmax)were 75.9%and 2548.1 mg/m^(3)h,67.4%~46.1%and 3684.3 mg/m^(3)h;and 52.9%and 4854.1 mg/m^(3)h,respectively.High-through put sequencing indicated that MFI had a prominent influence on fungal community structure,and speciesrichness followed the order:MFI 0 mT>MFI 80.0 mT>MFI 60.0 mT>MFI 20.0 mT.The relative abundance of thepredominant phylumAscomycota followed the order:90.82%(MFI 20.0 mT)>83.17%(MFI 60.0 mT)>79.37%(MFI 80.0 mT)>51.67%(MFI 0 mT).

关 键 词：磁场 真菌 生物滴滤器 三氯乙烯 

分 类 号：X172[环境科学与工程—环境科学] X701