1
|
Yang Z, Tan W, Xiao Y, Feng Q, Xu L, Liu C, Jiang Z. Unlocking the applicability of Ni-based self-supported anodes in microbial fuel cells for the shale gas flowback wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 383:125491. [PMID: 40288124 DOI: 10.1016/j.jenvman.2025.125491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2024] [Revised: 03/26/2025] [Accepted: 04/20/2025] [Indexed: 04/29/2025]
Abstract
The NiCo2O4 (NCOC) and Ni-P (NPC) self-supported anodes were successfully fabricated and utilized in microbial fuel cells (MFCs) for the treatment of actual shale gas flowback wastewater in this study. As a result, the NCOC and NPC displayed outstanding output voltages at 579.1 mV and 537.1 mV, as well as significantly decreased apparent internal resistances to 228.3 Ω and 396.7 Ω compared to the blank carbon cloth (CC, 206.7 mV and 1850.0 Ω). The electrochemical properties, rough surfaces and biocompatibility of NCOC (649.8 mW/m2) and NPC (436.1 mW/m2) endowed MFCs with superior power generation that was 11.7 and 7.8 times that of CC (55.7 mW/m2). Additionally, the removal ratios of the chemical oxygen demand based on NCOC and NPC achieved 61.5 % (1040.4 ± 34.1 mg/L) and 67.2 % (1136.7 ± 34.1 mg/L) with the increased energy conversion ratios from 8.4 % to 11.2 % and 9.7 %. Ultimately, the successful formation of the biofilms and the enrichment of the functional microorganisms such as Marinobacterium, Halomonas and Desulfuromonas on the prepared anodes further verified that NCOC and NPC could be potential research candidates in MFCs for decontaminating high-salty industrial wastewater.
Collapse
Affiliation(s)
- Zhengxin Yang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Wenwen Tan
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Yi Xiao
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Qi Feng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada.
| | - Longjun Xu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Chenglun Liu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Zao Jiang
- School of Emergency Management, Xihua University, Chengdu, 610039, China
| |
Collapse
|
2
|
Xu C, Zhang J, Wang A, Liu W, Xu Y, Zhang G, Wang S. Impact of sediment microbial fuel cells on the distribution of different forms of phosphorus in lake sediment and water. ENVIRONMENTAL TECHNOLOGY 2025:1-12. [PMID: 40056464 DOI: 10.1080/09593330.2025.2474255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Accepted: 01/27/2025] [Indexed: 03/10/2025]
Abstract
The continuous release of phosphorus from sediments by geochemical processes can cause endogenous eutrophication. This study examined the effect of carbon felt-sediment microbial fuel cells (CF-SMFCs) on the release of deposited phosphorus into the overlying water. In the CF-MFC system, the voltage ranged from 27 to 584 mV and the anode electrode potential increased from -130 mV to 202 mV. The Standard Measurements and Testing (SMT) method was employed to sequentially extract the sediment phosphorus in the sediments. A notable vertical increase in NaOH-P and HCl-P concentrations was observed downward in the sediment. The DGT phosphorus, visualized by Zr-Oxide DGT with submillimeter resolution, was removed by 52.04% in CF-SMFC. CF-SMFC notably facilitated the stabilization of phosphorus, promoting its conversion from pore water to sediment. The underlying mechanism suggests that the dissolution of solid-phase phosphorus into the overlying water was mitigated by the competition for organic substrates between Fe(III) reduction and the solid electrode. CF-SMFC can be used to increase the redox potential of the sediment and in-situ stabilize phosphorus in the sediment.
Collapse
Affiliation(s)
- Chengxiang Xu
- School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Jiatao Zhang
- China Three Gorges Corporation, Wuhan, People's Republic of China
| | - Aoxiang Wang
- School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Wenyi Liu
- School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Yanhong Xu
- Scientific Research Office, Zhengzhou Normal University, Zhengzhou, People's Republic of China
| | - Guangyi Zhang
- School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Sulan Wang
- School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, People's Republic of China
| |
Collapse
|
3
|
Tang L, Huang J, Zhuang C, Yang X, Sun L, Lu H. Biogenic sulfur recovery from sulfate-laden antibiotic production wastewater using a single-chamber up-flow bioelectrochemical reactor. WATER RESEARCH 2024; 256:121590. [PMID: 38631241 DOI: 10.1016/j.watres.2024.121590] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
The high-concentration sulfate (SO42-) in the antibiotic production wastewater hinders the anerobic methanogenic process and also proposes possible environmental risk. In this study, a novel single-chamber up-flow anaerobic bioelectrochemical reactor (UBER) was designed to realize simultaneous SO42- removal and elemental sulfur (S0) recovery. With the carbon felt, the cathode was installed underneath and the anode above to meet the different biological niches for sulfate reducing bacteria (SRB) and sulfur oxidizing bacteria (SOB). The bio-anode UBER (B-UBER) demonstrated a much higher average SO42- removal rate (SRR) of 113.2 ± 5.7 mg SO42--S L-1 d-1 coupled with a S0 production rate (SPR) of 54.4 ± 5.8 mg S0-S L-1 d-1 at the optimal voltage of 0.8 V than that in the abio-anode UBER (control reactor) (SRR = 86.6 ± 13.4 mg SO42--S L-1 d-1; SPR = 25.5 ± 9.7 mg S0-S L-1 d-1) under long-term operation. A large amount of biogenic S0 (about 72.2 mg g-1 VSS) was recovered in the B-UBER. The bio-anode, dominated by Thiovirga (SOB genus) and Acinetobacter (electrochemically active bacteria genus), exhibited a higher current density, lower overpotential, and lower internal resistance. C-type cytochromes mainly served as the crucial electron transfer mediator for both direct and indirect electron transfer, so that significantly increasing electron transfer capacity and biogenic S0 recovery. The reaction pathways of the sulfur transformation in the B-UBER were hypothesized that SRB utilized acetate as the main electron donor for SO42- reduction in the cathode zone and SOB transferred electrons to the anode or oxygen to produce biogenic S0 in the anode zone. This study proved a new pathway for biogenic S0 recovery and sulfate removal from sulfate-laden antibiotic production wastewater using a well-designed single-chamber bioelectrochemical reactor.
Collapse
Affiliation(s)
- Lan Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Jiamei Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Chuanyan Zhuang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Xiaojing Yang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Lianpeng Sun
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China.
| |
Collapse
|
4
|
Botti A, Musmeci E, Matturro B, Vanzetto G, Bosticco C, Negroni A, Rossetti S, Fava F, Biagi E, Zanaroli G. Chemical-physical parameters and microbial community changes induced by electrodes polarization inhibit PCB dechlorination in a marine sediment. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133878. [PMID: 38447365 DOI: 10.1016/j.jhazmat.2024.133878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/30/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
Microbial reductive dechlorination of organohalogenated pollutants is often limited by the scarcity of electron donors, that can be overcome with microbial electrochemical technologies (METs). In this study, polarized electrodes buried in marine sediment microcosms were investigated to stimulate PCB reductive dechlorination under potentiostatic (-0.7 V vs Ag/AgCl) and galvanostatic conditions (0.025 mA·cm-2-0.05 mA·cm-2), using graphite rod as cathode and iron plate as sacrificial anode. A single circuit and a novel two antiparallel circuits configuration (2AP) were investigated. Single circuit polarization impacted the sediment pH and redox potential (ORP) proportionally to the intensity of the electrical input and inhibited PCB reductive dechlorination. The effects on the sediment's pH and ORP, along with the inhibition of PCB reductive dechlorination, were mitigated in the 2AP system. Electrodes polarization stimulated sulfate-reduction and promoted the enrichment of bacterial clades potentially involved in sulfate-reduction as well as in sulfur oxidation. This suggested the electrons provided were consumed by competitors of organohalide respiring bacteria and specifically sequestered by sulfur cycling, which may represent the main factor limiting the applicability of METs for stimulating PCB reductive dechlorination in marine sediments.
Collapse
Affiliation(s)
- Alberto Botti
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Eliana Musmeci
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Bruna Matturro
- Water Research Institute (IRSA), National Research Council (CNR), 00010 Montelibretti, Italy; National Biodiversity Future Center, 90133 Palermo, Italy
| | - Giampietro Vanzetto
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Caterina Bosticco
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Andrea Negroni
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Simona Rossetti
- Water Research Institute (IRSA), National Research Council (CNR), 00010 Montelibretti, Italy
| | - Fabio Fava
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Elena Biagi
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Giulio Zanaroli
- Dept. of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| |
Collapse
|