本文選題：微生物燃料電池 + 磁場��； 參考：《華東理工大學(xué)》2015年碩士論文

【摘要】：微生物燃料電池(Microbial fuel cell, MFC)是一種以微生物作為催化劑,利用污水中的有機(jī)物進(jìn)行產(chǎn)電的新技術(shù)。本文主要研究了動(dòng)態(tài)磁場馴化、陽極垂直施加不同強(qiáng)度的靜態(tài)磁場、以及Geobacter sulfurreducens 和 Shewanella oneidensis MR-1 混合接種對(duì) MFC產(chǎn)電性能的影響及其作用機(jī)制。主要實(shí)驗(yàn)結(jié)果如下：(1)動(dòng)態(tài)磁場處理使產(chǎn)電菌反應(yīng)器的啟動(dòng)時(shí)間延長,穩(wěn)定電壓降低,表觀內(nèi)阻變大,其中空白、100mT、200mT反應(yīng)器的表觀內(nèi)阻依次為329Ω、507Ω和353Ω;通過電化學(xué)阻抗譜測(cè)試可知,經(jīng)磁場處理的產(chǎn)電菌MFC全電池的活化內(nèi)阻相比對(duì)照組MFC活化內(nèi)阻變大,其中空白、100mT、200mT反應(yīng)器的活化內(nèi)阻依次為12.34Ω、28.29Ω、16.87Ω；經(jīng)過循環(huán)伏安測(cè)試發(fā)現(xiàn)動(dòng)態(tài)磁場處理降低了產(chǎn)電菌的電化學(xué)活性。(2)在磁場作用下,相對(duì)空白對(duì)照組MFC產(chǎn)電性能變強(qiáng),表觀內(nèi)阻明顯變小,在一定強(qiáng)度的磁場作用下,電極表面的電活性物質(zhì)增多,活化內(nèi)阻變小。施加100mT、 200mT、400mT磁場的反應(yīng)器陽極表面電活化物質(zhì)的濃度分別為4.58×10-10、9.01×10-10、7.36×10-10 mol·cm-2大于空白對(duì)照組3.60×10-10 mol·cm-2。且在已經(jīng)完成啟動(dòng)的MFC反應(yīng)器陽極一側(cè)加載200mT靜態(tài)磁場后,MFC的產(chǎn)電功率變大。(3)接種不同的產(chǎn)電菌對(duì)MFC產(chǎn)電性能和阻抗譜有很大影響�；炀臃N的反應(yīng)器的產(chǎn)電功率(0.039mW/m2)明顯優(yōu)于單一產(chǎn)電菌接種的反應(yīng)器,其最大功率密度相對(duì)Geobacter sulfurreducens接種的微生物燃料電池(0.032mW/m2)提高了20%,是Shewanella oneidensis MR-1接種的微生物燃料電池(0.0072mW/m2)的4倍左右。
[Abstract]:Microbial fuel cell (MFC) is a new technology which uses microbial as catalyst to produce electricity from organic matter in sewage. In this paper, the effects of dynamic magnetic field acclimation, anode vertical application of static magnetic field with different intensities, and mixed inoculation of Geobacter sulfurreducens and Shewanella oneidensis MR-1 on the electrical properties of MFCs were studied. The main experimental results are as follows: (1) dynamic magnetic field treatment can prolong the start-up time, decrease the stable voltage and increase the apparent internal resistance. The apparent internal resistance of the blank 100 Mt / 200mT reactor is 329 惟 ~ 507 惟 and 353 惟, respectively. Compared with the control group, the activated internal resistance of the electrogen-producing bacteria MFC treated by magnetic field was larger than that of the control group. The activation internal resistance of the blank 100m T ~ (2 +) 200mT reactor was 12.34 惟 ~ 28.29 惟 ~ (16.87) 惟. After cyclic voltammetry test, it was found that dynamic magnetic field treatment decreased the electrochemical activity of electroproducing bacteria. (2) compared with the blank control group, the electrical properties of MFC increased significantly, and the apparent internal resistance became smaller, and under the action of a certain intensity of magnetic field, The electroactive substances on the electrode surface increased and the activation internal resistance decreased. The concentration of electroactive substances on the anode surface of the reactor with a magnetic field of 100mT, 200mTX 400mT was 4.58 脳 10-10, 9.01 脳 10-10, 7.36 脳 10-10 mol cm-2 and 3.60 脳 10-10 mol / cm ~ (-2), respectively. The electric power of MFC increased after loading 200mT static magnetic field on the anode side of the completed MFC reactor. (3) inoculation with different electrogen-producing bacteria had great influence on the electrical properties and impedance spectrum of MFC. The electric power of the mixed inoculation reactor (0.039 MW / m2) was significantly higher than that of the single electrobacillus inoculated reactor. The maximum power density of the reactor increased by 20% compared with that of the microorganism fuel cell inoculated with Geobacter sulfurreducens (0.032 mW / m2), which was about 4 times of that of the microbial fuel cell inoculated with Shewanella oneidensis MR-1 (0.0072 MW / m ~ 2).
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM911.45

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