微生物學(xué)通報(bào) MAY 20, 2008, 35(5): 777~781
Microbiology 2008 by Institute of Microbiology, CAS
[email protected]
李登蘭1,2 許玫英1 孫國萍1*
(1. 廣東省微生物研究所廣東省菌種保藏與應(yīng)用重點(diǎn)實(shí)驗(yàn)室 廣州 510070)
(2. 廣東工業(yè)大學(xué)環(huán)境科學(xué)與工程學(xué)院 廣州 510090)
摘 要: 為了確定脫色希瓦氏菌S12的電化學(xué)活性, 采用循環(huán)伏安法(cyclic voltammograms, CV)對(duì)厭氧培養(yǎng)的菌株S12進(jìn)行曲線掃描, 所得曲線表明S12具有一定的電化學(xué)活性, 可以用來進(jìn)行產(chǎn)電實(shí)驗(yàn),。研究了不同電子供體和供體濃度對(duì)菌株S12產(chǎn)電的影響, 結(jié)果表明, 以濃度為10 mmol/L的不同有機(jī)酸(甲酸鈉,、乳酸鈉和丙酮酸鈉)分別作為電子供體時(shí), 乳酸鈉產(chǎn)電量最大, 其最大功率密度Pmax為21.93 mW/m2, 增加乳酸鈉的濃度, 菌株S12的產(chǎn)電量也相應(yīng)增加, 當(dāng)乳酸鈉的濃度為20 mmol/L時(shí), 所產(chǎn)生的最大功率密度達(dá)55.72 mW/m2。
關(guān)鍵詞: 電化學(xué)活性, 產(chǎn)電, 電子供體, 功率密度
Electricity Generated by Shewanella decolorationnis S12 in Microbial Fuel Cell
LI Deng-Lan1, 2 XU Mei-Ying1 SUN Guo-Ping1*
(1. Guangdong Institute of Microbiology, Guangdong Provincial Key Laboratory of Microbial Culture Collection
and Application, Guangzhou 510070)
(2. Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510090)
Abstract: In order to determine the electrochemical activity of Shewanella decolorationis S12, anaerobic grown cells were scanned by the cyclic voltammograms (CV). The results of CV showed that strain S12 dis-played certain electrochemical activities and could be used as a catalyzer working in microbial fuel cell (MFC) to produce electricity. The effects of different electron donor, such as lactate, formate and pyruvate with different concentration on the production of electricity were analyzed by using strain S12 in a single chamber MFC with a PEM/electrode assembly sandwiched type. The results showed that lactate was the op-timal electron donor and the concentration of the electron donor determined the electricity generation capac-ity and potential development in the MFC. When 10 mmol/L and 20 mmol/L of lactate were used, the maximum power density of 21.93 mW/m2 and 55.72 mW/m2 were obtained, respectively.
Keywords: Electrochemical activity, Electricity generation, Electron donor, Power density
全文下載：微生物燃料電池中脫色希瓦氏菌S12的產(chǎn)電特性研究
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