| Title: |
Bioelectrochemical recovery of ammonia-copper(II) complexes from wastewater using a dual chamber microbial fuel cell |
| Authors: |
Zhang, Li-Juan; Tao, Hu-Chun; Wei, Xue-Yan; Lei, Tao; Li, Jin-Bo; Wang, Ai-Jie; Wu, Wei-Min |
| Contributors: |
Tao, HC (reprint author), Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Treatment & Reutilizat, Shenzhen 518055, Peoples R China.; Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Treatment & Reutilizat, Shenzhen 518055, Peoples R China.; Harbin Inst Technol, Stare Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China.; Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA. |
| Source: |
EI ; PubMed ; SCI |
| Publisher Information: |
chemosphere |
| Publication Year: |
2012 |
| Collection: |
Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| Subject Terms: |
Copper complexes; Microbial fuel cell; Bioelectrochemical reduction; Ammonia; pH; REDUCTION; ELECTRICITY; METALS; ADSORPTION; MANGANESE; REMOVAL; REACTOR; COPPER |
| Description: |
The cathodic reduction of complex-state copper(II) was investigated in a dual chamber microbial fuel cell (MFC). The inner resistance of MFC system could be reduced in the presence of ionizing NH4+, however, mass transfer was hindered at higher ammonia concentration. Thermodynamic and electrochemical analyses indicated that the processes of complex dissociation and copper reduction were governed by the ratio of T[Cu]:T[NH3] and the pH of solution. The reduction of Cu(NH3)(4)(2+) could be achieved via two possible pathways: (1) releasing Cu2+ from Cu(NH3)(4)(2+), then reducing Cu2+ to Cu or Cu2O and (2) Cu(NH3)(4)(2+) accepting an electron and forming Cu(NH3)(2)(+) and depositing as Cu or Cu2O consequently. At initial concentration of 350 mg T[Cu] L-1, copper removal efficiency of 96% was obtained at pH = 9.0 within 12 h (with Delta Cu/Delta COD = 1.24), 84% was obtained at pH = 3.0 within 8 h (with Delta Cu/Delta COD = 1.72). Cu(NH3)(4)(2+) was reduced as polyhedral deposits on the cathode. (C) 2012 Elsevier Ltd. All rights reserved. ; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000310112500003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences ; SCI(E) ; EI ; PubMed ; 18 ; ARTICLE ; 10 ; 1177-1182 ; 89 |
| Document Type: |
journal/newspaper |
| Language: |
English |
| Relation: |
657998; http://hdl.handle.net/20.500.11897/190815; WOS:000310112500003 |
| DOI: |
10.1016/j.chemosphere.2012.08.011 |
| Availability: |
https://hdl.handle.net/20.500.11897/190815; https://doi.org/10.1016/j.chemosphere.2012.08.011 |
| Accession Number: |
edsbas.D6CE275F |
| Database: |
BASE |