Bioremediation of Wastewater by Iron Oxide-Biochar Nanocomposites Loaded with Photosynthetic Bacteria
文献类型: 外文期刊
作者: He, Shiying 1 ; Zhong, Linghao 2 ; Duan, Jingjing 1 ; Feng, Yanfang 1 ; Yang, Bei 1 ; Yang, Linzhang 1 ;
作者机构: 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing, Jiangsu, Peoples R China
2.Penn State Univ, Dept Chem, Mt Alto, PA USA
关键词: iron oxide nanoparticles;nanocomposites;microorganisms;biochar;nutrient removal;water treatment
期刊名称:FRONTIERS IN MICROBIOLOGY ( 影响因子:5.64; 五年影响因子:6.32 )
ISSN: 1664-302X
年卷期: 2017 年 8 卷
页码:
收录情况: SCI
摘要: It has been reported that bacteria-mediated degradation of contaminants is a practical and innocuous wastewater treatment. In addition, iron oxide nanoparticles (NP) are wastewater remediation agents with great potentials due to their strong adsorption capacity, chemical inertness and superparamagnetism. Therefore, a combination of NPs and microbes could produce a very desirable alternative to conventional wastewater treatment. For this purpose, we first prepared Fe3O4/biochar nano-composites, followed by loading photosynthetic bacteria (PSB) onto them. It was found that Fe3O4/biochar nano-composites exhibited a high adsorption capacity for PSB (5.45 x 10(9) cells/g). The efficiency of wastewater pollutants removal by this PSB/Fe3O4/biochar agent was then analyzed. Our results indicated that when loaded onto Fe3O4/biochar nano-composites, PSB's nutrient removal capability was significantly enhanced (P < 0.05). This agent removed 83.1% of chemical oxygen demand, 87.5% of NH4+, and 92.1% of PO43- from the wastewater in our study. Our experiments also demonstrated that such composites are outstanding recyclable agents. Their nutrient removal capability remained effective even after five cycles. In conclusion, we found the PSB/Fe3O4/biochar composites as a very promising material for bioremediation in the wastewater treatment.
- 相关文献
作者其他论文 更多>>
-
Efficient magnetic capture of PE microplastic from water by PEG modified Fe3 O4 nanoparticles: Performance, kinetics, isotherms and influence factors
作者:Zhang, Yifan;Feng, Yanfang;Xue, Lihong;He, Shiying;Zhang, Yifan;Duan, Jingjing;Liu, Ruiqian;Feng, Yanfang;Xue, Lihong;Yang, Linzhang;He, Shiying;Petropoulos, Evangelos;Petropoulos, Evangelos
关键词:Microplastic removal; Adsorption; Magnetic nanoparticles; Wastewater; Surface modification
-
Heavy rainfall stimulates more N2O emissions from wheat fields during basal and overwintering fertilization phases
作者:Wang, Jing;Liu, Qiang;Liu, Qiang;Zhao, Suya;He, Shiying;Yang, Bei;Wang, Ning;Hou, Pengfu;Xue, Lihong;Yang, Linzhang;Zhao, Suya;He, Shiying;Wang, Ning;Hou, Pengfu;Xue, Lihong
关键词:Rainfall; Nitrous oxide; Nitrogen transformation; Functional microorganisms
-
Hydrochar and Its Dissolved Organic Matter Aged in a 30-Month Rice-Wheat Rotation System: Do Primary Aging Factors Alter at Different Stages?
作者:Ge, Mengting;Wang, Bingyu;Xie, Huifang;Chen, Bingfa;Feng, Yanfang;Sun, Haijun;Sun, Ke
关键词:soil aging; hydrochar; dissolved organic matter; physicochemicalproperties; molecular structure
-
Regulation of surface acidic sites on birnessite-type MnO2 and its function in the adsorption of gaseous ammonia
作者:Zhou, Yu;Lu, Jingling;He, Weijiang;Ran, Wang;Rong, Shaopeng;Feng, Yanfang;Zhou, Yu
关键词:Ammonia adsorption; Birnessite-type MnO 2; Acidic sites; Thermal desorption
-
Microplastics alter soil structure and microbial community composition
作者:Han, Lanfang;Chen, Liying;Chen, Qi 'ang;Zhang, Sibo;Chao, Liang;Cai, Yanpeng;Ma, Chuanxin;Feng, Yanfang;Kuzyakov, Yakov;Kuzyakov, Yakov;Sun, Ke;Rillig, Matthias C.;Rillig, Matthias C.
关键词:Microplastic contamination; Soil aggregation; Bacterial community structure; Microbial co-occurrence network; Soil health
-
Floating La modified g-C3N4 photocatalytic sponge mesh for sustainable dye degradation under sunlight irradiation
作者:Xu, Hanghang;Xiong, Jian;Xu, Hanghang;Zhang, Yifang;Cheng, Jiahui;Yang, Bei
关键词:Nanoparticles; Nanocomposites; Photocatalytic sponge mesh; Immobilization; Dye degradation
-
Unraveling the photochemical behavior of dissolved organic matter derived from hydrothermal carbonization process water: Insights from molecular transformation and photoactive species
作者:Xie, Huifang;Li, Qiaoqiao;Wang, Bingyu;Wang, Minli;Feng, Yanfang
关键词:Dissolved organic matter; Hydrothermal carbonization; Photochemical behavior; Photoactive species; Tetracycline