Bioelectrochemical recovery of silver from wastewater with sustainable power generation and its reuse for biofouling mitigation

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	Bioelectrochemical recovery of silver from wastewater with sustainable power generation and its reuse for biofouling mitigation
	Ali, Jafar ; Wang, Lei ; Waseem, Hassan ; Sharif, Hafiz Muhammad Adeel ; Djellabi, Ridha ; Zhang, Changbo ; Pan, Gang
刊名	JOURNAL OF CLEANER PRODUCTION
	2019-10-20
卷号	235 页码:1425-1437
关键词	Microbial fuel cell Resource recovery Sustainable Anti-biofouling Silver Wastewater
ISSN号	0959-6526
英文摘要	Precious metals recovery and wastewater treatment using the microbial fuel cell (MFC) is an attractive approach for a sustainable environment. Silver recovery from wastewater and its valorization in the form of silver nanoflakes (AgNFs) brings back waste material to production stream and helps in transition from linear to circular economy. In the present study, bioelectrochemical performance of MFC fed with silver laden artificial wastewater (MFC-Ag) was compared with MFC fed with potassium ferricyanide (MFC-FC) and MFC fed with phosphate buffer as catholyte (MFC-blank). High silver removal (83 +/- 0.7%) and recovery (67.8 +/- 1%) efficiencies were achieved from MFC-Ag after 72 h operation. The maximum power density (3006 mW/m(3)) and current density (34100 mA/m(3)) of MFC-Ag were found to be significantly higher than the MFC-FC and MFC-blank. High chemical oxygen demand (COD) removal efficiency of MFC-Ag (82.7 +/- 1.5%) compared with MFC-FC (76 +/- 2) highlighted the suitability of silver laden wastewater as a cost effective catholyte. The high coulombic efficiency (8.73 +/- 0.9%) and low solution resistance (24.38 Omega) for MFC-Ag also indicate the potential of silver laden wastewater for large scale applications. Analytical characterizations of electrochemically recovered silver revealed the pure (99%) and crystalline AgNFs with a mean diameter of 18 +/- 1.2 nm on the cathode surface. Furthermore, a significant anti-biofouling activity of recovered AgNFs indicate the valorization of waste by current study with potential applications in several industrial and environmental processes. Our method has diverse potential to scale up the MFC technology for industrial waste management as a closed loop process with minimum facilities and higher sustainability. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43181]
专题	生态环境研究中心_环境纳米材料实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effects, 18 Shuangqing Rd, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Res Ctr Environm Mat & Pollut Control Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ali, Jafar,Wang, Lei,Waseem, Hassan,et al. Bioelectrochemical recovery of silver from wastewater with sustainable power generation and its reuse for biofouling mitigation[J]. JOURNAL OF CLEANER PRODUCTION,2019,235:1425-1437.
APA	Ali, Jafar.,Wang, Lei.,Waseem, Hassan.,Sharif, Hafiz Muhammad Adeel.,Djellabi, Ridha.,...&Pan, Gang.(2019).Bioelectrochemical recovery of silver from wastewater with sustainable power generation and its reuse for biofouling mitigation.JOURNAL OF CLEANER PRODUCTION,235,1425-1437.
MLA	Ali, Jafar,et al."Bioelectrochemical recovery of silver from wastewater with sustainable power generation and its reuse for biofouling mitigation".JOURNAL OF CLEANER PRODUCTION 235(2019):1425-1437.