Enhanced Current Generation Using Mutualistic Interaction of Yeast- Bacterial Coculture in Dual Chamber Microbial Fuel Cell

被引:43
作者
Islam, M. Amirul [1 ]
Ethiraj, Baranitharan [2 ]
Chen, Chin Kui [1 ,4 ]
Yousuf, Abu [3 ]
Thiruvenkadam, Selvakumar [5 ]
Prasad, Reddy [6 ]
Khan, Md. Maksudur Rahman [1 ,4 ,7 ]
机构
[1] Univ Malaysia Pahang, Fac Chem & Nat Resources Engn, Pahang 26300, Malaysia
[2] Bannari Amman Inst Technol, Dept Biotechnol, Sathyamangalam 638401, Tamil Nadu, India
[3] Univ Malaysia Pahang, Fac Engn Technol, Pahang 26300, Malaysia
[4] Univ Malaysia Pahang, Ctr Excellence Adv Res Fluid Flow CARIFF, Pahang 26300, Malaysia
[5] Univ Putra Malaysia, Dept Chem & Environm Engn, Serdang 43400, Malaysia
[6] Inst Teknol, Dept Petr & Chem Engn, BE-1410 Gadong, Brunei
[7] Univ Malaysia Pahang, Fac Chem & Nat Resources Engn, Kuantan 26300, Malaysia
关键词
EXTRACELLULAR ELECTRON-TRANSFER; OIL MILL EFFLUENT; POWER-GENERATION; SACCHAROMYCES-CEREVISIAE; PSEUDOMONAS-AERUGINOSA; SHEWANELLA-ONEIDENSIS; KLEBSIELLA-VARIICOLA; LIPOMYCES-STARKEYI; ESCHERICHIA-COLI; BIOFUEL CELLS;
D O I
10.1021/acs.iecr.7b01855
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Although exogenous mediators can distinctly enhance the performance of yeast driven microbial fuel cell (MFC), the possibility of mediator's toxicity, environmental risk, and cost are the main challenges facing toward its application in MFCs. Therefore, the use of naturally produced electron shuttles for unmediated yeast would be of great interest since it can solve most of the above-mentioned problems. The present study is to investigate the possibility of the use of electron shuttle producing bacteria Klebsiella pneumonia (K. pneumonia) to boost up the performance of yeast Lipomyces starkeyi (L. starkeyi) driven MFC. The MFCs inoculated with L. starkeyi and K. pneumoniae coculture achieved a maximum power density of 12.87 W/m(3) which is about 3 and 6 times higher than that of MFC solely inoculated with pure yeast and bacteria, respectively, demonstrating that the yeast cells have successfully utilized the reduced electron shuttles excreted by the bacteria. The occurrence of the mutualistic interactions was further supported by the CV and EIS results. The findings of this work suggest that the use of mutualistic interaction of yeast and bacteria could be a new way to increase the performance of the MFCs.
引用
收藏
页码:813 / 821
页数:9
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