重氮
微生物燃料电池
发电
萘
化学需氧量
微生物降解
污染物
废水
环境化学
人工湿地
制浆造纸工业
化学
降级(电信)
环境科学
环境工程
微生物
有机化学
细菌
电极
功率(物理)
物理化学
工程类
物理
阳极
生物
电信
量子力学
遗传学
计算机科学
作者
Palak Saket,Yamini Mittal,Boggavarapu Kiran,Abhijeet Joshi,Asheesh Kumar Yadav
标识
DOI:10.1016/j.biortech.2021.126490
摘要
A novel earthen separator-based dual-chambered unplanted core of constructed wetland coupled with microbial fuel cell was developed for studying the microbe-material interaction and their effect on treatment performance and electricity generation. The constructed wetland integrated microbial fuel cell was evaluated for the degradation of high molecular weight diazo Congo red dye as a model pollutant. The system exhibited 89.99 ± 0.04% of dye decolorization and 95.80 ± 0.71% of chemical oxygen demand removal efficiency from an initial concentration of 50 ± 10 mg/L and 750 ± 50 mg/L, respectively. Ultraviolet-Visible spectrophotometric and gas chromatography-mass spectrometric analysis revealed naphthalene and phenol as mineralized products. The developed system achieved high power density and current density generation of 235.94 mW/m3 and 1176.4 mA/m3, respectively. Results manifested that dual-chambered constructed wetland coupled with microbial fuel cell has a high capability of dye decolorization and toxicity abatement with appreciable simultaneous bioelectricity generation owing to the significantly low internal resistance of 100 Ω.
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