摘要
构建了以乙酸钠为阳极基质、Cu^(2+)为阴极电子受体的双室微生物燃料电池(MFC),考察了该MFC处理含铜废水的效果及Cu^(2+)浓度对MFC产电性能的影响。通过改变阴极液中CuSO_4的质量浓度(20~130mg/L),测试了MFC运行过程中的输出电压、输出功率密度、内阻、Cu去除率等指标。结果表明:Cu^(2+)可作为MFC的阴极电子受体;在外电路电阻为1 000Ω的条件下,Cu^(2+)质量浓度为130mg/L的MFC性能最佳,其稳定输出电压为0.33V、最大输出功率密度为114.42mW/m^2,内阻为231.62Ω,最高Cu去除率为84.59%;通过X射线衍射测试发现,阴极还原产物为Cu_2O。
Double chamber microbial fuel cell （MFC） was constructed with sodium acetate as anode substrate, Cu^2＋ as cathode electron acceptor. The effect of the MFC on copper-containing wastewater treatment and the influence of Cu^2＋ concentration on the electricity generation performance of MFC were studied. The output voltage,output pow- er density,internal resistance, copper removal rate and some other indicators were tested in the running process of the MFC under different concentration of CuSO4 solution. The results showed that Cu^2＋ could be used as cathode electron acceptor of MFC. The best performance was obtained when the external resistance was 1 000 Ω and the concentration of Cu^2＋ was 130 mg/L. Under this circumstance,the stable output voltage was 0.33 V,tbe maximum output power density was 114.42 mW/m^2 ,internal resistance was 231.62 Ω and the highest copper removal rate was 84.59%. The cathode reduction product was Cu2O via the X ray diffraction measurement.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2017年第2期185-190,共6页
Environmental Pollution & Control
关键词
微生物燃料电池
含铜废水
去除率
电子受体
microbial fuel cell
copper-containing wastewater
removal rate
electron acceptor
