标題：Hydronium jarosite activation of peroxymonosulfate for the oxidation of organic contaminant in an electrochemical reactor driven by microbial fuel cell作者：Yan, SD (Yan, Suding); Geng, JY (Geng, Jinyao); Guo, R (Guo, Rui); Du, Y (Du, Yue); Zhang, H (Zhang, Hui)

來源出版物：JOURNAL OF HAZARDOUS MATERIALS卷：333頁碼： 358-368 DOI：10.1016/j.jhazmat.2017.03.043 出版年： JUL 5 2017

摘要： Electro-assisted Fenton-like (EAFL) system based on sulfate radicals (SO4 center dot-) has been extensively explored for the degradation of recalcitrant organic contaminant. Nevertheless, external power supply should be provided uninterruptedly in the EAFL process and thus the high energy consumption is ineluctable. Recently, microbial fuel cell (MFC), a bio-electrochemical system where exoelectricigens are used to catalyze fuels into electricity energy has gained popularity mainly due to its renewability. Herein, a novel heterogeneous EAFL system, hydronium jarosite (HJ) activation of peroxymonosulfate (PMS) in an electrochemical reactor driven by an uncoated single-chamber MFC (MFC/HJ/PMS), was employed to decolorize acid orange 7 (AO7). The results suggest that the MFC/HJ/PMS system can remove AO7 efficiently in a wide pH range (3-9). The concentration of total iron leached could meet European Union discharge standards and hydronium jarosite could be used at least three circles. The results of electron paramagnetic resonance analysis and radical scavenging experiments indicate SO4 center dot- is the major active species responsible for the AO7 elimination. The work provides an efficient, energy-saving and cost-effective approach to treat organic wastewater and develops the conceivable utilization of hydronium jarosite, precipitates produced in hydrometallurgical process.

入藏号：WOS:000400533900038

文獻類型：Article

語種：English

作者關鍵詞： Hydronium jarosite; Peroxymonosulfate; Microbial fuel cell; Electro-assisted Fenton-like; Sulfate radicals

擴展關鍵詞： ACID ORANGE 7; ENHANCED HETEROGENEOUS ACTIVATION; WASTE-WATER TREATMENT; AQUEOUS-SOLUTION; ELECTRO/FE2+/PEROXYDISULFATE PROCESS; FE-CO/SBA-15 CATALYST; OXONE/CO2+ REAGENT; SYNTHETIC AMMONIUM; BISPHENOL-A; DEGRADATION

通訊作者地址：Zhang, H (reprint author), Wuhan Univ, Dept Environm Engn, Wuhan 430079, Peoples R China.

電子郵件地址：eeng@whu.edu.cn

地址：

[Yan, Suding; Geng, Jinyao; Guo, Rui; Du, Yue; Zhang, Hui] Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Dept Environm Engn, Wuhan 430079, Peoples R China.

[Yan, Suding] Hubei Normal Univ, Coll Urban & Environm Sci, Huangshi 435002, Peoples R China.

[Zhang, Hui] Wuhan Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China.

研究方向： Engineering; Environmental Sciences & Ecology

ISSN： 0304-3894

eISSN:1873-3336

影響因子：4.836