Gaseous toluene, ethylbenzene, and xylene mixture removal in a microbial fuel cell: Performance, biofilm characteristics, and mechanisms
Gaseous toluene, ethylbenzene, and xylene mixture removal in a microbial fuel cell: Performance, biofilm characteristics, and mechanisms
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微生物燃料电池中气态甲苯、乙苯和二甲苯混合物的去除：性能、生物膜特性和机制
DOI：
10.1016/j.cej.2019.123916
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发表时间：
2020-04
影响因子：
15.1
通讯作者：
Jianmeng Chen
中科院分区：
文献类型：
--
作者：
Shihan Zhang（张士汉）;Juping You;Han Chen;Jiexu Ye;Zhuowei Cheng;Jianmeng Chen
微生物燃料电池(MFC)可以提高微生物的降解率，被认为是厌氧苯、甲苯、乙苯和二甲苯(BTEX)矿化的良好替代品。在这项研究中，采用双室MFC来评价单一TE(o-X)、双或三元TE(o-X)混合物的去除效率和发电量。Te(o-X)易生物降解，其去除效率分别为94.8%、86.3%和71.6%，但甲苯和二甲苯的存在对其他混合组分的降解有不利影响。激光扫描共聚焦显微镜图像显示，邻二甲苯对微生物活性的抑制作用最大。微生物群落分析表明，在没有邻二甲苯的情况下，外源电子占优势。将进料气体从甲苯转移到另一种单独的气体或混合物中，会导致外电子物质的数量逐渐减少。此外，还研究了脂环菌的邻二甲苯降解剂。在对二甲苯存在下，占17.7%~60.3%。此外，通过扫描电子显微镜图像和循环伏安分析对纳米线/菌毛的观察表明，所产生的电子直接转移到阳极。
Microbial fuel cells (MFCs) are regarded as promising alternatives to anaerobic benzene, toluene, ethylbenzene, and xylene (BTEX) mineralization due to the enhancement of microbial degradation rate caused by bioanodes. In this research, a dual-chambered MFC was employed to evaluate the removal efficiency and power generation of single TE(o-X) or of dual or ternary TE(o-X) mixtures. Individually, TE(o-X) was readily biodegradable with a removal efficiency of 94.8%, 86.3%, and 71.6%, respectively, but the presence of toluene ando-xylene exhibited an adverse influence on the degradation of other mixed components. Theo-xylene has the greatest inhibitory effect on microbial activity, as evidenced by laser scanning confocal microscope images. Microbial community analysis revealed that exoelectrogens prevailed in the absence of theo-xylene. Shifting the feeding gas from toluene to another individual gas or mixture caused the quantities of the exoelectrogens to gradually decrease. Moreover, theo-xylene degrader ofAlicycliphilussp. were prevailed from ~17.7% to ~60.3% in presence of theo-xylene. In addition, the observation of the nanowire/pili using scanning electron microscope images and cyclic voltammetry analysis revealed that the electrons produced were transferred to the anode directly.
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影响因子：
5.2
作者：
Kracke F;Vassilev I;Krömer JO
通讯作者：
Krömer JO
DOI：
10.1007/s13762-018-1757-0
发表时间：
2019-03
影响因子：
3.1
作者：
Zargona Zafar;K. Ayaz;M. Nasir;Sameen Yousaf;Iqra Sharafat;Naeem Ali
通讯作者：
Zargona Zafar;K. Ayaz;M. Nasir;Sameen Yousaf;Iqra Sharafat;Naeem Ali
DOI：
10.1016/j.scitotenv.2017.02.130
发表时间：
2017-06
期刊：
The Science of the total environment
影响因子：
--
作者：
Ilker Akmirza;C. Pascual;A. Carvajal;Rebeca Pérez;R. Muñoz;R. Lebrero
通讯作者：
Ilker Akmirza;C. Pascual;A. Carvajal;Rebeca Pérez;R. Muñoz;R. Lebrero
影响因子：
4.4
作者：
Reguera, Gernma;Nevin, Kelly P.;Lovley, Derek R.
通讯作者：
Lovley, Derek R.
DOI：
10.1080/15320383.2018.1556597
发表时间：
2019-02
期刊：
Soil and Sediment Contamination: An International Journal
影响因子：
--
作者：
K. S;Sangeetha Cj;S. T
通讯作者：
K. S;Sangeetha Cj;S. T