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海带残渣微生物燃料电池产电性能研究

发表时间:2018-03-30  浏览量:958  下载量:93
全部作者: 王颖,刘宪华
作者单位: 天津大学海洋科学与技术学院;天津大学环境科学与工程学院
摘 要: 以海带残渣为原料,在酸和盐的协同作用下水解产生还原糖,并以水解液作为底物构建了一种藻类微生物燃料电池(microbial fuel cell,MFC)。选用HCl 和MgCl2 作为海带残渣水解的催化剂,以反应温度、反应时间、HCl 质量分数、MgCl2 质量分数进行4 因素3 水平的Box-Behnken 设计(Box-Behnken design,BBD),并以还原糖质量浓度作为响应值,确定最优工艺参数,即反应温度为121℃、反应时间为64 min、HCl 质量分数为1.85%,MgCl2 质量分数为0.50%,最终还原糖质量浓度为17.21 mg/mL. 以稀释后的海带水解液作为微生物燃料电池底物进行产电分析,结果表明,当加入海带水解液12 mL 且pH 值为6.68 时,电池最大功率密度最高,为0.57 W/m2.
关 键 词: 环境科学技术其他学科;微生物燃料电池;海带残渣;水解;响应面法
Title: Research on the performance of electricity generation from kelp residue-fed microbial fuel cell
Author: WANG Ying, LIU Xianhua
Organization: School of Marine Science and Technology; School of Environmental Science and Engineering
Abstract: The goal of this paper was to produce reducing sugar of kelp residue by using acid and salt as catalyst to develop an algae microbial fuel cell (MFC). Hydrochloric acid and magnesium chloride was selected as the catalyst for the hydrolysis of kelp residue, reaction temperature, time, mass fraction of hydrochloric acid and magnesium chloride were chosen as the four-factor three-level Box-Bohnken design (BBD). The reducing sugar mass concentration was used as the response values for the characterization of the catalyst. The result showed that the optimum condition was 121℃, 64 min for reaction time, 1.85% HCl, 0.50% MgCl2 and the mass concentration of reducing sugar of 17.21 mg/mL was obtained at last. We also developed a MFC using kelp hydrolysates after dilution as substrates to analyze electricity and production. The maximum power density reached 0.57 W/m2 under the condition of kelp hydrolysates of 12 mL and pH of 6.68.
Key words: other subjects of environmental science and technology; microbial fuel cell; kelp residue; hydrolysis; response surface method
发表期数: 2018年3月第6期
引用格式: 王颖,刘宪华. 海带残渣微生物燃料电池产电性能研究[J]. 中国科技论文在线精品论文,2018,11(6):633-640.
 
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