Biogenic Palladium Improved Perchlorate Reduction during Nitrate Co-Reduction by Diverting Electron Flow in a Hydrogenotrophic Biofilm
文献类型： 外文期刊
作者： Zhou, Jingzhou 1 ; Yang, Lin 1 ; Li, Xiaodi 1 ; Dai, Ben 1 ; He, Junxia 1 ; Wu, Chengyang 3 ; Pang, Si 4 ; Xia, Siqing 1 ; Rittmann, Bruce E. 5 ;
作者机构： 1.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
2.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China
3.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
4.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
5.Arizona State Univ, Biodesign Swette Ctr Environm Biotechnol, Tempe, AZ 85287 USA
关键词： palladium nanoparticles; Pd-catalyzed reduction; intracellular electron transfer; perchlorate reduction
期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：11.4； 五年影响因子：12.0 ）
ISSN： 0013-936X
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Microbial reduction of perchlorate (ClO4-) is emerging as a cost-effective strategy for groundwater remediation. However, the effectiveness of perchlorate reduction can be suppressed by the common co-contamination of nitrate (NO3-). We propose a means to overcome the limitation of ClO4- reduction: depositing palladium nanoparticles (Pd(0)NPs) within the matrix of a hydrogenotrophic biofilm. Two H-2-based membrane biofilm reactors (MBfRs) were operated in parallel in long-term continuous and batch modes: one system had only a biofilm (bio-MBfR), while the other incorporated biogenic Pd(0)NPs in the biofilm matrix (bioPd-MBfR). For long-term co-reduction, bioPd-MBfR had a distinct advantage of oxyanion reduction fluxes, and it particularly alleviated the competitive advantage of NO3- reduction over ClO4- reduction. Batch tests also demonstrated that bioPd-MBfR gave more rapid reduction rates for ClO4- and ClO3- compared to those of bio-MBfR. Both biofilm communities were dominated by bacteria known to be perchlorate and nitrate reducers. Functional-gene abundances reflecting the intracellular electron flow from H-2 to NADH to the reductases were supplanted by extracellular electron flow with the addition of Pd(0)NPs.
- 相关文献
作者其他论文 更多>>
-
Microbial synergy mechanism of hydrogen flux influence on hydrogen-based partial denitrification coupled with anammox in a membrane biofilm reactor
作者：Pang, Si;Pang, Si;Cai, Xiang;Yang, Lin;Zhou, Jingzhou;Li, Xiaodi;Xia, Siqing;Pang, Si;Yang, Lin;Zhou, Jingzhou;Li, Xiaodi;Xia, Siqing;Cai, Xiang
关键词：Partial denitrification; Hydrogen oxidation; Membrane biofilm reactor; Nitrate and ammonium removal; Metagenomics
-
Comparison of the Bacterial and Fungal Communities and Metabolic Functions of Cottonseed Hull Waste Compost Associated with High and Low Yields of Straw Mushroom Volvariella volvacea
作者：Kakumyan, Pattana;Yang, Lin;Liu, Shunjie;Yu, Changxia;Li, Zhengpeng;Chen, Mingjie;Zhao, Yan;Kakumyan, Pattana;Popluechai, Siam;Kakumyan, Pattana;Popluechai, Siam
关键词：straw mushroom; cotton waste compost; microbial diversity; physicochemical properties; biological efficiency
-
Biochar reversed antibiotic resistance genes spread in biodegradable microplastics and Cu co-contaminated soil by lowering Cu bio-availability and regulating denitrification process
作者：Wang, Zhenyu;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Wang, Zhenyu;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Sun, Ying
关键词：Soil remediation; Cu immobilization; PBAT microplastics; Nitrogen conversion; ARGs propagation; Microbial community
-
Adsorption behavior of commercial biodegradable plastics towards pollutants during the biodegradation process: Taking starch-based biodegradable microplastics, oxytetracycline and Cu (II) as examples
作者：Chen, Liuyu;Sun, Ying;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Chen, Liuyu;Sun, Ying;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Sun, Ying
关键词：Starch-based blended biodegradable microplastics; Cu(II); OTC; Biodegradation; Microbial colonization; Adsorption
-
Dynamics of Nutrient Components and Microbial Communities in Substrates During the Development of the Fruiting Bodies of Volvariella volvacea
作者：Wang, Le;Dong, Qin;Guo, Qian;Zha, Lei;Yang, Lin;Yu, Changxia;Zhao, Yan;Guo, Qian;Zhao, Yan
关键词：circular agriculture;
Volvariella volvacea ; fruiting body development; nutrient composition; microbial community -
Added Biochars Promoted Nitrogen and Phosphorus Removal from Ecological Ditches at Low Temperature
作者：Bai, Guangsha;Bi, Dongsu;Wang, Siqi;Kong, Lingqi;Bai, Guangsha;Wang, Siqi;Kong, Lingqi;Shen, Zheng;Zhang, Yalei;Bai, Guangsha;Pang, Si;Cai, Min;Bai, Guangsha;Pang, Si;Cai, Min;Pang, Si;Zhang, Yalei
关键词：ecological ditch; biochar; Vallisneria natans; microbial community; nitrogen and phosphorus removal
-
Stereoselective cardiotoxic effects of metconazole on zebrafish (Danio rerio) based on AGE-RAGE signalling pathway
作者：Li, Minmin;Wang, Rui;Li, Lin;Zhang, Yifan;Li, Long;Jin, Nuo;Huang, Yatao;Fan, Bei;Wang, Fengzhong;Yang, Lin;Kong, Zhiqiang;Francis, Frederic
关键词：Metconazole; Chiral pesticides; Zebrafish embryo; Stereoselective cardiotoxicity; p38 inhibitor
