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Bhaduri S, Behera M. Advancement in constructed wetland microbial fuel cell process for wastewater treatment and electricity generation: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34574-2. [PMID: 39102132 DOI: 10.1007/s11356-024-34574-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 07/26/2024] [Indexed: 08/06/2024]
Abstract
The constructed wetland coupled with a microbial fuel cell (CW-MFC) is a wastewater treatment process that combines contaminant removal with electricity production, making it an environmentally friendly option. This hybrid system primarily relies on anaerobic bioprocesses for wastewater treatment, although other processes such as aerobic bioprocesses, plant uptake, and chemical oxidation also contribute to the removal of organic matter and nutrients. CW-MFCs have been successfully used to treat various types of wastewater, including urban, pharmaceutical, paper and pulp industry, metal-contaminated, and swine wastewater. In CW-MFC, macrophytes such as rice plants, Spartina angalica, Canna indica, and Phragmites australis are used. The treatment process can achieve a chemical oxygen demand removal rate of between 80 and 100%. Initially, research focused on enhancing power generation from CW-MFC, but recent studies have shifted towards resource recovery from wastewater. This review paper provides an overview of the development of constructed wetland microbial fuel cell technology, from its early stages to its current applications. The paper also highlights research gaps and potential directions for future research.
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Affiliation(s)
- Soumyadeep Bhaduri
- School of Infrastructure, Indian Institute of Technology Bhubaneswar, Odisha, 752050, India
| | - Manaswini Behera
- School of Infrastructure, Indian Institute of Technology Bhubaneswar, Odisha, 752050, India.
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2
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Bang Truong H, Nguyen THT, Ba Tran Q, Son Lam V, Thao Nguyen Nguyen T, Cuong Nguyen X. Algae-constructed wetland integrated system for wastewater treatment: A review. BIORESOURCE TECHNOLOGY 2024; 406:131003. [PMID: 38925406 DOI: 10.1016/j.biortech.2024.131003] [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: 04/12/2024] [Revised: 06/15/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024]
Abstract
Integrating algae into constructed wetlands (CWs) enhances wastewater treatment, although the results vary. This review evaluates the role of algae in CWs and the performance of different algae-CW (A-CW) configurations based on literature and meta-analysis. Algae considerably improve N removal, although their impact on other parameters varies. Statistical analysis revealed that 70 % of studies report improved treatment efficiencies with A-CWs, achieving average removal rates of 75 % for chemical oxygen demand (COD), 74 % for total nitrogen and ammonium nitrogen, and 79 % for total phosphorus (TP). This review identifies hydraulic retention times, which average 3.1 days, and their varied impact on treatment efficacy. Mixed-effects models showed a slight increase in COD and TP removal efficiencies of 0.6 % every ten days in the A-CWs. Future research should focus on robust experimental designs, adequate algal storage and separation techniques, and advanced modeling to optimize the treatment potential of algae in CWs.
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Affiliation(s)
- Hai Bang Truong
- Optical Materials Research Group, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City 70000, Viet Nam; Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City 70000, Viet Nam
| | - T Hong Tinh Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Viet Nam
| | - Quoc Ba Tran
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Viet Nam
| | - Vinh Son Lam
- HUTECH Institute of Applied Sciences, HUTECH University, 475A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, Viet Nam
| | - T Thao Nguyen Nguyen
- Faculty of Environmental Engineering Technology, Hue University, Quang Tri Branch, Viet Nam
| | - Xuan Cuong Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Viet Nam.
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3
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González T, Miranda JP, Gómez G, Puigagut J, Vidal G. Saturated constructed wetland-microbial fuel cell system and effect on dissolved oxygen gradient, electricity generation and ammonium removal. ENVIRONMENTAL TECHNOLOGY 2024; 45:624-638. [PMID: 36101485 DOI: 10.1080/09593330.2022.2119170] [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: 01/14/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
The aim of this work was to assess effect of saturated constructed wetland-Microbial fuel cell system on dissolved oxygen gradient, electricity generation and ammonium removal. Two laboratory-scale systems, one planted with Schoenoplectus californicus (SCW1-MFC) and other without plant (SCW2-MFC), were fed discontinuously with synthetic wastewater over 90 days. Both systems were operated at different organic loading rate (12 and 28 g COD/m2d) and ammonium loading rate (1.6 and 3.0 g NH4+- N/m2 d) under open circuit and close circuit mode. The results indicate that between lower and upper zones of wetlands the average values were in the range of 1.22 ± 0.32 to 1.39 ± 0.27 mg O2/L in SCW1-MFC and 1.28 ± 0.24 to 1.56 ± 0.31 mg O2/L in SCW2-MFC. The effect of operating mode (closed and open circuit) and vegetation on DO was not significant (p > 0.05). Chemical oxygen demand (COD) removal efficiencies, fluctuated between 90 and 95% in the SCW1-MFC and 82 and 94% in the SCW2-MFC system. Regarding NH4+- N, removal efficiencies were above 85% in both systems reaching values maximus 98%. The maximum power density generated was 4 and 10 mW/m2 in SCW1-MFC, while SCW2-MFC recorded the highest values (12 and 22 mW/m2).
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Affiliation(s)
- Thais González
- Engineering and Biotechnology Environmental Group (GIBA-UDEC), Environmental Science Faculty & Center EULA-Chile, University of Concepción, Concepción, Chile
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomás, Chile
| | - Juan Pablo Miranda
- Engineering and Biotechnology Environmental Group (GIBA-UDEC), Environmental Science Faculty & Center EULA-Chile, University of Concepción, Concepción, Chile
| | - Gloria Gómez
- Engineering and Biotechnology Environmental Group (GIBA-UDEC), Environmental Science Faculty & Center EULA-Chile, University of Concepción, Concepción, Chile
| | - Jaume Puigagut
- Group of Environmental Engineering and Microbiology (GEMMA), Universitat Politècnica de Catalunya - BarcelonaTech, Catalonia, Spain
| | - Gladys Vidal
- Engineering and Biotechnology Environmental Group (GIBA-UDEC), Environmental Science Faculty & Center EULA-Chile, University of Concepción, Concepción, Chile
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Dong Q, Bai S, Wang Z, Zhao X, Yang S, Ren N. Virtual sample generation empowers machine learning-based effluent prediction in constructed wetlands. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 346:118961. [PMID: 37708683 DOI: 10.1016/j.jenvman.2023.118961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/26/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
The design of constructed wetlands (CWs) is critical to ensure effective wastewater treatment. However, limited availability of reliable data can hamper the accuracy of CW effluent predictions, thus increasing design costs and time. In this study, a novel effluent prediction framework for CWs is proposed, utilizing data dimensionality reduction and virtual sample generation. By using four the machine learning algorithms (Cubist, random forest, support vector regression, and extreme learning machine), important features of CW design are identified and used to build prediction models. The extreme learning machine algorithm achieved the highest determination coefficient and lowest error, identifying it as the most suitable algorithm for effluent prediction. A multi-distribution mega-trend-diffusion algorithm with particle swarm optimization was employed to generate virtual samples. These virtual samples were then combined with real samples to retrain the prediction model and verify the optimization effect. Comparative analysis demonstrated that the integration of virtual samples significantly improved the prediction accuracy for ammonium and chemical oxygen demand. The root mean square error decreased by averages of 60.5% and 42.1%, respectively, and the mean absolute percentage error by averages of 21.5% and 23.8%, respectively. Finally, a CW design process is proposed based on prediction models and virtual samples. This integrated forward prediction and reverse design tool can efficiently support CW design when sample sizes are limited, ultimately leading to more accurate and cost-effective design solutions.
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Affiliation(s)
- Qiyu Dong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 150090, Harbin, China
| | - Shunwen Bai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 150090, Harbin, China.
| | - Zhen Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 150090, Harbin, China
| | - Xinyue Zhao
- College of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Shanshan Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 150090, Harbin, China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 150090, Harbin, China
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Youssef YA, Abuarab ME, Mahrous A, Mahmoud M. Enhanced degradation of ibuprofen in an integrated constructed wetland-microbial fuel cell: treatment efficiency, electrochemical characterization, and microbial community dynamics. RSC Adv 2023; 13:29809-29818. [PMID: 37829716 PMCID: PMC10566547 DOI: 10.1039/d3ra05729a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/06/2023] [Indexed: 10/14/2023] Open
Abstract
Over the past few decades, there has been a growing concern regarding the fate and transport of pharmaceuticals, particularly antibiotics, as emerging contaminants in the environment. It has been proposed that the presence of antibiotics at concentrations typically found in wastewater can impact the dynamics of bacterial populations and facilitate the spread of antibiotic resistance. The efficiency of currently-used wastewater treatment technologies in eliminating pharmaceuticals is often insufficient, resulting in the release of low concentrations of these compounds into the environment. In this study, we addressed these challenges by evaluating how different influent ibuprofen (IBU) concentrations influenced the efficiency of a laboratory-scale, integrated constructed wetland-microbial fuel cell (CW-MFC) system seeded with Eichhornia crassipes, in terms of organic matter removal, electricity generation, and change of bacterial community structure compared to unplanted, sediment MFC (S-MFC) and abiotic S-MFC (AS-MFC). We observed that the addition of IBU (5 mg L-1) resulted in a notable decrease in chemical oxygen demand (COD) and electricity generation, suggesting that high influent IBU concentrations caused partial inhibition for the electroactive microbial community due to its complexity and aromaticity. However, CW-MFC could recover from IBU inhibition after an acclimation period compared to unplanted S-MFC, even though the influent IBU level was increased up to 20 mg L-1, suggesting that plants in CW-MFCs have a beneficial role in relieving the inhibition of anode respiration due to the presence of high levels of IBU; thus, promoting the metabolic activity of the electroactive microbial community. Similarly, IBU removal efficiency for CW-MFC (i.e., 49-62%) was much higher compared to SMFC (i.e., 29-42%), and AS-MFC (i.e., 20-22%) during all experimental phases. In addition, our high throughput sequencing revealed that the high performance of CW-MFCs compared to S-MFC was associated with increasing the relative abundances of several microbial groups that are closely affiliated with anode respiration and organic matter fermentation. In summary, our results show that the CW-MFC system demonstrates suitability for high removal efficiency of IBU and effective electricity generation.
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Affiliation(s)
- Youssef A Youssef
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University Giza 12613 Egypt
| | - Mohamed E Abuarab
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University Giza 12613 Egypt
| | - Ahmed Mahrous
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University Giza 12613 Egypt
| | - Mohamed Mahmoud
- Water Pollution Research Department, National Research Centre 33 El-Buhouth St., Dokki Cairo 12311 Egypt
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Mosquera-Romero S, Ntagia E, Rousseau DP, Esteve-Núñez A, Prévoteau A. Water treatment and reclamation by implementing electrochemical systems with constructed wetlands. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2023; 16:100265. [PMID: 37101565 PMCID: PMC10123341 DOI: 10.1016/j.ese.2023.100265] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 06/19/2023]
Abstract
Seasonal or permanent water scarcity in off-grid communities can be alleviated by recycling water in decentralized wastewater treatment systems. Nature-based solutions, such as constructed wetlands (CWs), have become popular solutions for sanitation in remote locations. Although typical CWs can efficiently remove solids and organics to meet water reuse standards, polishing remains necessary for other parameters, such as pathogens, nutrients, and recalcitrant pollutants. Different CW designs and CWs coupled with electrochemical technologies have been proposed to improve treatment efficiency. Electrochemical systems (ECs) have been either implemented within the CW bed (ECin-CW) or as a stage in a sequential treatment (CW + EC). A large body of literature has focused on ECin-CW, and multiple scaled-up systems have recently been successfully implemented, primarily to remove recalcitrant organics. Conversely, only a few reports have explored the opportunity to polish CW effluents in a downstream electrochemical module for the electro-oxidation of micropollutants or electro-disinfection of pathogens to meet more stringent water reuse standards. This paper aims to critically review the opportunities, challenges, and future research directions of the different couplings of CW with EC as a decentralized technology for water treatment and recovery.
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Affiliation(s)
- Suanny Mosquera-Romero
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
- ESPOL Polytechnic University, Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias Naturales y Matemáticas, BOX9050, Ecuador
- Department of Green Chemistry and Technology, Ghent University, Sint-Martens-Latemlaan 2B, B-8500, Kortrijk, Belgium
- Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Frieda Saeysstraat 1, 9000, Ghent, Belgium
| | - Eleftheria Ntagia
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
- Université Paris-Saclay, INRAE, PROSE, 92160, Antony, France
| | - Diederik P.L. Rousseau
- Department of Green Chemistry and Technology, Ghent University, Sint-Martens-Latemlaan 2B, B-8500, Kortrijk, Belgium
| | - Abraham Esteve-Núñez
- Universidad de Alcalá, Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Alcalá de Henares, Spain
| | - Antonin Prévoteau
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
- Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Frieda Saeysstraat 1, 9000, Ghent, Belgium
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Teoh TP, Ong SA, Ho LN, Wong YS, Lutpi NA, Tan SM, Ong YP, Yap KL. Enhancement of energy recovery from caffeine wastewater in constructed wetland-microbial fuel cell through operating conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:84397-84411. [PMID: 37358771 DOI: 10.1007/s11356-023-28362-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/17/2023] [Indexed: 06/27/2023]
Abstract
The enhancement of up-flow constructed wetland-microbial fuel cell (UFCW-MFC) performance in energy retrieval from caffeine containing wastewater has been explored via various operating conditions (hydraulic retention time (HRT), multianode (MA), multicathode current collector (MC), external resistance). The anaerobic decaffeination and COD removal improved by 37 and 12% as the HRT extended from 1 to 5 d. The increment in contact time between the microbes and organic substrates promoted the degradation and contributed to higher power output (3.4-fold), CE (eightfold), and NER (14-16-fold). The MA and MC connections facilitated the electron transfer rate and the degradation rate of organic substrates in the multiple anodic zones, which enhanced the removal efficiency in the anaerobic compartment (Caffeine: 4.2%; COD: 7.4%) and led to higher electricity generation (Power: 4.7-fold) and energy recovery (CE: 1.4-fold; NER: 2.3-2.5-fold) compared to SA. The lower external resistance favored the growth of electrogens and induced higher electron flux, where the best treatment performance and electricity production was obtained when the external resistance approached the internal resistance. Overall, it was noteworthy that the optimum operating conditions were achieved with 5 d HRT, MA, and MC connection along with external resistance of 200 Ω, which significantly outperformed the initial conditions (1 d HRT, SA connection, and 1000 Ω) by 43.7 and 29.8% of caffeine and COD removal in the anaerobic compartment, respectively as well as 14-fold of power generation.
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Affiliation(s)
- Tean-Peng Teoh
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Soon-An Ong
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia.
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia.
| | - Li-Ngee Ho
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Yee-Shian Wong
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Nabilah Aminah Lutpi
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Sing-Mei Tan
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Yong-Por Ong
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Kea-Lee Yap
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
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Guo J, Li Q, Gao Q, Shen F, Yang Y, Zhang X, Luo H. Comparative study on the treatment of swine wastewater by VFCW-MFC and VFCW: Pollutants removal, electricity generation, microorganism community. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118299. [PMID: 37269721 DOI: 10.1016/j.jenvman.2023.118299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/22/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
Swine wastewater, characterized by high organic and nutrient content, poses significant environmental challenges. This study aims to compare the effectiveness of two treatment technologies, namely Vertical Flow Constructed Wetland-Microbial Fuel Cell (VFCW-MFC) and Vertical Flow Constructed Wetland (VFCW), in terms of pollutant removal, electricity generation, and microorganism community dynamics. The results showed that the average removal efficiencies of chemical oxygen demand (COD), ammonia nitrogen, total nitrogen (TN), total phosphorus (TP) and sulfadiazine antibiotics (SDZ) by VFCW-MFC were as high as 94.15%, 95.01%, 42.24%, 97.16% and 82.88%, respectively, which were all higher than that by VFCW. Both VFCW-MFC and VFCW have good tolerance to SDZ. In addition, VFCW-MFC has excellent electrical performance, with output voltage, power density, coulombic efficiency and net energy recovery up to 443.59 mV, 51.2 mW/m3, 52.91% and 2.04 W/(g·s), respectively, during stable operation. Moreover, the microbial community diversity of VFCW-MFC was more abundant, and the species abundance distribution in cathode region was more rich and even than in anode region. At phylum level, the dominant microorganisms in VFCW-MFC included Proteobacteria, Bacteroidota, Firmicutes and Actinobacteriota, which showed good degradation effect on SDZ. Proteobacteria and Firmicutes are also involved in electricity production. Chloroflexi, Proteobacteria and Bacteroidota play a major role in nitrogen reduction.
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Affiliation(s)
- Junyuan Guo
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China.
| | - Quanhong Li
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
| | - Qifan Gao
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China; China 19th Metallurgical Group Corporation Limited, Chengdu, Sichuan 610031, China
| | - Fei Shen
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Yiting Yang
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
| | - Xinyu Zhang
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
| | - Hong Luo
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
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Xu C, Sun S, Li Y, Gao Y, Zhang W, Tian L, Li T, Du Q, Cai J, Zhou L. Methane emission reduction oriented extracellular electron transfer and bioremediation of sediment microbial fuel cell: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162508. [PMID: 36863582 DOI: 10.1016/j.scitotenv.2023.162508] [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: 12/21/2022] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Sediment is the internal and external source of water environment pollution, so sediment remediation is the premise of water body purification. Sediment microbial fuel cell (SMFC) can remove the organic pollutants in sediment by electroactive microorganisms, compete with methanogens for electrons, and realize resource recycling, methane emission inhibiting and energy recovering. Due to these characteristics, SMFC have attracted wide attention for sediment remediation. In this paper, we comprehensively summarized the recent advances of SMFC in the following areas: (1) The advantages and disadvantages of current applied sediment remediation technologies; (2) The basic principles and influencing factors of SMFC; (3) The application of SMFC for pollutant removal, phosphorus transformation and remote monitoring and power supply; (4) Enhancement strategies for SMFC in sediments remediation such as SMFC coupled with constructed wetland, aquatic plant and iron-based reaction. Finally, we have summarized the drawback of SMFC and discuss the future development directions of applying SMFC for sediment bioremediation.
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Affiliation(s)
- Chong Xu
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Shiquan Sun
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Yifu Li
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Yang Gao
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Wei Zhang
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Liu Tian
- School of Municipal and Geomatics Engineering, Hunan City University, Yiyang 413000, China
| | - Tian Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, China
| | - Qing Du
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
| | - Jingju Cai
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Lean Zhou
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province/School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China.
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10
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Han J, Zhao J, Wang Y, Shu L, Tang J. Performance optimization of two-stage constructed wetland-microbial fuel cell system for the treatment of high-concentration wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:63620-63630. [PMID: 37052840 DOI: 10.1007/s11356-023-26488-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 03/13/2023] [Indexed: 05/11/2023]
Abstract
Constructed wetland-microbial fuel cell (CW-MFC) has attracted much attention because of its dual functions of wastewater treatment and energy recovery. However, its performance in treating high-concentration wastewater is degraded by the decreased dissolved oxygen at the cathode and insufficient electron acceptors. In this study, two CW-MFC systems with cathodic aeration were connected in series to investigate the effects of aeration rate and hydraulic retention time (HRT) on the removal of pollutants and the performance of electricity production in high-concentration wastewater. Results showed that aeration enhanced NH4+-N and TP removal by 45.0-49.8% and 11.5-18.0%, compared with the unaerated condition, respectively. Meanwhile, no significant change regarding COD removal was observed. Aeration enhances the output voltage and power density of the system, especially the first stage CW-MFC, which improved the power production performance by 1 to 2 orders-of-magnitude. Increasing HRT improves the system's pollutant treatment efficiency and power generation performance for high-concentration wastewater. Still, the extension of HRT to 2 days will not contribute much to improving the removal efficiency. Under optimized conditions, the maximum total removal rates of COD, NH4+-N, and TP for the two-stage tandem CW-MFC system were 99.3 ± 0.2%, 92.4 ± 1.6%, and 79.5 ± 3.4%, respectively. Meanwhile, the maximum output voltage and maximum power density of the first-stage CW-MFC were 405 mV and 138.0 mW/m3, respectively. In contrast, the maximum output voltage and maximum power density of the second stage are 105 mV and 14.7 mW/m3, respectively.
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Affiliation(s)
- Jiabi Han
- College of Urban Construction, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jinhui Zhao
- College of Urban Construction, Nanjing Tech University, Nanjing, People's Republic of China.
| | - Yangyang Wang
- College of Urban Construction, Nanjing Tech University, Nanjing, People's Republic of China
| | - Lisha Shu
- College of Urban Construction, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jixian Tang
- College of Urban Construction, Nanjing Tech University, Nanjing, People's Republic of China
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Teoh TP, Koo CJ, Ho LN, Wong YS, Lutpi NA, Tan SM, Yap KL, Ong SA. Transformation from biofiltration unit to hybrid constructed wetland-microbial fuel cell: Improvement of wastewater treatment performance and energy recovery. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:59877-59890. [PMID: 37016256 DOI: 10.1007/s11356-023-26789-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/29/2023] [Indexed: 05/10/2023]
Abstract
This study aimed to compare the performance of biofiltration, constructed wetland, and constructed wetland microbial fuel cell (CW-MFC). The transformation from a biofiltration unit to a hybrid CW-MFC was demonstrated with the advantages of improvement of wastewater treatment while generating electricity simultaneously. The introduction of plants to the upper region of the bioreactor enhanced the DO level by 0.8 mg/L, ammonium removal by 5 %, and COD removal by 1 %. The integration of electrodes and external circuits stimulated the degradation rate of organic matter in the anodic region (1 % without aeration and 3 % with aeration) and produced 5.13 mW/m3 of maximum power density. Artificial aeration improved the nitrification efficiency by 38 % and further removed the residual COD to an efficiency of 99 %. The maximum power density was also increased by 3.2 times (16.71 mW/m3) with the aid of aeration. In treating higher organic loading wastewater (3M), the maximum power density showed a significant increment to 78.01 mW/m3 (4.6-fold) and the COD removal efficiency was 98 %. The ohmic overpotential dominated the proportion of total loss (67-91 %), which could be ascribed to the low ionic conductivity. The reduction in activation and concentration loss contributed to the lower internal resistance with the additional aeration and higher organic loading. Overall, the transformation from biofiltration to a hybrid CW-MFC system is worthwhile since the systems quite resemble while CW-MFC could improve the wastewater treatment as well as recover energy from the treated wastewater.
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Affiliation(s)
- Tean-Peng Teoh
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Chong-Jing Koo
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Li-Ngee Ho
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Yee-Shian Wong
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Nabilah Aminah Lutpi
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Sing-Mei Tan
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Kea-Lee Yap
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia
| | - Soon-An Ong
- Water Research and Environmental Sustainability Growth, Centre of Excellence (WAREG), Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia.
- Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600, Arau, Perlis, Malaysia.
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Advances in microbial electrochemistry-enhanced constructed wetlands. World J Microbiol Biotechnol 2022; 38:239. [PMID: 36260261 DOI: 10.1007/s11274-022-03413-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/09/2022] [Indexed: 10/24/2022]
Abstract
Constructed wetland (CW) is an effective ecological technology to treat water pollution and has the significant advantages of high impact resistance, simple construction process, and low maintenance cost. However, under extreme conditions such as low temperature, high salt concentration, and multiple types of pollutants, some bottlenecks exist, including the difficulty in improving operating efficiency and the low pollutant removal rate. Microbial electrochemical technology is an emerging clean energy technology and has the similar structure and pollutant removal mechanism to CW. Microbial electrochemistry combined with CW can improve the overall removal effect of pollutants in wetlands. This review summarizes characterization methods of microbial electrochemistry-enhanced constructed wetland systems, construction methods of different composite systems, mechanisms of single and composite systems, and removal effects of composite systems on different pollutants in water bodies. Based on the shortcomings of existing studies, the potential breakthroughs in microbial electrochemistry-enhanced constructed wetlands are proposed for developing the optimization solution of constructed wetlands.
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Qiu Y, Zhang Z, Li Z, Li J, Feng Y, Liu G. Enhanced performance and microbial interactions of shallow wetland bed coupling with functional biocathode microbial electrochemical system (MES). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156383. [PMID: 35654178 DOI: 10.1016/j.scitotenv.2022.156383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
It is essential to remediate the polluted urban river, which endangers the aquatic creatures and affected human body's senses. The treatment wetland combined with microbial electrochemical system (MES) used for the remediation is becoming a new research focus due to its ideal pollutants removal efficiency and small footprint. Here this paper provided a kind of novel shallow wetland bed coupling with close-circuit microbial electrochemical system (WB-CMES) to remove pollutants in surface water. In contrast to the shallow wetland bed coupling with open-circuit MES (WB-OMES) and the shallow wetland bed without MES (WB), the enhancing effects and pollutants removal pathway were evaluated. After 62-day operation, average TN removal efficiency in WB-CMES was 87.7%, which was 19.7% and 13.8% higher than that of WB-OMES and WB respectively. The rate coefficient k of NO3--N degradation in WB-CMES was 1.6 and 1.8 times higher than that in WB-OMES and WB. The results of chlorophyll, protein and superoxide dismutase (SOD) in WB-CMES were 27.3%, 44.3% and 12.9% higher than those in WB. The microbial community structure analysis indicated that electroactive bacteria on anode like Desulfobulbus could oxidize organics and generate electrons to compensate cathode, meanwhile, cathode could enrich more species of functional bacteria like Rhodobacter, Pirellula, Hyphomicrobium, Thauera, which had a synergistic effect on oxygen reduction, nitrogen removal and plant growth. The results indicated that oxygen produced by submerged plants could be utilized by the oxygen-reducing functional biocathode of MES and the proper aerobic and anoxic environment might enhance nitrate removal mainly through simultaneous nitrification and denitrification (SND), aerobic denitrification and anammox. This research provided a novel technology with advantages of simple operation, flexible configuration, easy scale-up and low cost for application in remediation of highly polluted surface water.
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Affiliation(s)
- Ye Qiu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zhaohan Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zeng Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jiannan Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Guohong Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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Yang H, Chen J, Yu L, Li W, Huang X, Qin Q, Zhu S. Performance optimization and microbial community evaluation for domestic wastewater treatment in a constructed wetland-microbial fuel cell. ENVIRONMENTAL RESEARCH 2022; 212:113249. [PMID: 35421392 DOI: 10.1016/j.envres.2022.113249] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/17/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Constructed wetland-microbial fuel cell system (CW-MFC), an attractive technology still under study, has shown to improve domestic wastewater treatment efficiency and generate bioelectricity. This work investigated the effect of multiple factors on the performance optimization for the pollutants removal and bioelectricity production compared to a traditional CW, including influent chemical oxygen demand (COD) concentration, hydraulic retention time (HRT) and external resistance. The results showed that the optimal operating conditions of COD concentration, HRT and external resistance for CW-MFC were 200 mg/L, 24 h and 1000 Ω, respectively. The average COD, NH4+-N, NO3--N and TP removal efficiencies were 6.06%, 3.85%, 3.68% and 3.68% higher than these in CW system, respectively. Meanwhile, the maximum output voltage and power density of CW-MFC were 388 ± 12 mV and 107.54 mW/m3. In addition, the microbial community analysis indicated that the pollution removal and bioelectricity generation might benefit from the gradual enrichment of electroactive bacteria (Tolumonas) and denitrifying bacteria (Denitratisoma, Methylotenera and Sulfuritales). The findings can provide the optimum operation parameters and mechanism insight for the performance of CW-MFC systems.
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Affiliation(s)
- Houyun Yang
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China.
| | - Jian Chen
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Li Yu
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Weihua Li
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Xianhuai Huang
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Qian Qin
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Shuguang Zhu
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
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Wang J, Wu S, Yang Q, Gu Y, Wang P, Li Z, Li L. Performance and mechanism of the in situ restoration effect on VHCs in the polluted river water based on the orthogonal experiment: photosynthetic fluorescence characteristics and microbial community analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:43004-43018. [PMID: 35094283 DOI: 10.1007/s11356-022-18845-4] [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: 09/17/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Volatile halogenated hydrocarbons (VHCs) attracted many attentions due to its toxicity and persistence in the environment. In this research, a novel in situ ecological restoration reactor was applied to the degradation of VHCs in polluted river water. The optimized working condition adaptation of the in situ restoration technique was evaluated through orthogonal tests. The experiments showed that when the water depth was 0.4 m, the HRT was 5 days, and the current velocity was 1 m/s, the optimal removal efficiency of VHCs in the reactor was achieved. And the removal rates of CHCl3, CCl4, C2HCl3, and C2Cl4 reached 70.27%, 70.59%, 67.74%, and 81.82%, respectively. The results showed that both HRT and water depth were significantly related to the removal efficiency of reactor. The physiological state of the plants was analyzed by fitting rapid light curve (RLC) model, which showed that the accumulation of VHCs inhibited the photosynthetic performance of plants. Moreover, the microbial community structures of fillers were tested by high-throughput sequencing, and the findings supported that the microbial community made a great response to adapt to the changes in environment of the reactor. The relative abundance of Rhodocyclaceae increased slightly, which hinted that it had good adaptability to VHCs in polluted river water. The research results confirmed that in situ ecological restoration reactor was a potential approach for removal VHCs in polluted river water.
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Affiliation(s)
- Jia Wang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
- Beijing Institute of Water Science and Technology, Beijing, 100048, China
| | - Shuangrong Wu
- College of Civil and Architectural Engineering, Tangshan University, Tangshan, 063000, China
| | - Qi Yang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Yonggang Gu
- Beijing Institute of Water Science and Technology, Beijing, 100048, China.
| | - Peijing Wang
- Beijing Institute of Water Science and Technology, Beijing, 100048, China
| | - Zhaoxin Li
- Beijing Institute of Water Science and Technology, Beijing, 100048, China
| | - Lei Li
- Beijing Institute of Water Science and Technology, Beijing, 100048, China
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16
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Guadarrama-Pérez O, Bahena-Rabadan KY, Dehesa-Carrasco U, Guadarrama Pérez VH, Estrada-Arriaga EB. Bioelectricity production using shade macrophytes in constructed wetlands-microbial fuel cells. ENVIRONMENTAL TECHNOLOGY 2022; 43:1532-1543. [PMID: 33092463 DOI: 10.1080/09593330.2020.1841306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
The coupling of constructed wetlands (CW) to microbial fuel cells (MFC) has become a promising hybrid technology due to its high compatibility to generate electricity and remove pollutants from wastewater. In the present study, the bioelectricity production generated from constructed wetlands-microbial fuel cells (CW-MFCs) was evaluated using four species of shade macrophytes: Aglaonema commutatum, Epipremnum aureum, Dranacaena braunni, and Philodendron cordatum. The CW-MFCs were operated in a continuous upflow mode with a hydraulic retention time (HRT) of 4 d. The systems were fed with synthetic water without an external carbon source. The bioelectrochemical systems were operated under diffuse radiation conditions (shadow). Philodendron cordatum was the macrophyte species that produced a maximum voltage of 103 mV, with a power density of 12.5 mW/m2. High voltages were obtained when the diffuse radiation in the CW-MFCs was 3000-4000 µmol.m2/s. The maximum production of root exudates was 20.6 mg/L as total organic carbon for the Philodendron cordatum species. Philodendron cordatum was the macrophyte species that obtained high conversion efficiency (0.0014%), compared to other macrophyte species (< 0.0008%). In the CW-MFCs systems it was observed that the bioelectricity production was mainly due to the quantity of the root exudates released into the rhizospheres of the plants.
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Affiliation(s)
- Oscar Guadarrama-Pérez
- Subcoordinación de Tratamiento de Aguas Residuales, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
- Subcoordinación de Posgrado, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
| | | | - Ulises Dehesa-Carrasco
- Coordinación de Riego y Drenaje, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
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17
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Karla MR, Alejandra VAC, Lenys F, Patricio EM. Operational performance of corncobs/sawdust biofilters coupled to microbial fuel cells treating domestic wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:151115. [PMID: 34756908 DOI: 10.1016/j.scitotenv.2021.151115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/11/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Biofilters coupled to microbial fuel cells (MFCs) are the most integral treatment technology that generate water-energy nexus for rural zones sanitation. Moreover, biofilters coupled to MFCs, using organic residues as bed filter have not been studied. Therefore, the aim of this study was comparatively to evaluate biofilters based on corncobs/sawdust coupled to MFCs treating domestic wastewater. Biofilters based on corncobs/sawdust (50%, v/v) as bed filter incorporating microorganisms (BM), earthworms/microorganisms (BEM, Eisenia foetida Savigny), plants/microorganisms (BPM, Canna indica L.), and all organisms (HB) were evaluated. These biofilters were coupled to 2 electrochemical systems based on graphite cathodes with graphite (G)/stainless-steel mesh (M) anodes. Three nominal hydraulic loading rates (0.3, 0.5, and 1 m3 m-2 d-1) evaluating removal of organic matter, nutrients and pathogens were monitored. Voltage within electrochemical systems also were registered. Results demonstrated that biofilters based on corncob/wood chips coupled to MFCs reach mean organic matter removal efficiencies over 80% (COD: 86%, BOD5: 91%). Nevertheless, HBG was the most efficient (up to 6%) biofiltration technology monitored. The biofiltration typologies studied reported removal efficiencies of nutrients (NH3-N, PO43-) and pathogens (fecal coliforms) up to 99%. Specifically, BMG and HBG were the biofiltration typologies that registered the highest energy recovery (up to 104 mV, 29 mW m-2). Within all the biofiltration typologies studied, the hybrid biofiltration coupled to MFCs using graphite (HBG) is the one that offers the best water-energy nexus conditions, thanks to its biological complexity.
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Affiliation(s)
- Montenegro-Rosero Karla
- Departamento de Ingeniería en Obras Civiles, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Av. Ecuador 3659, 9170124, Estación Central, Santiago, Chile; Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, 17-01-2759, Quito, Ecuador
| | - Villamar-Ayala Cristina Alejandra
- Departamento de Ingeniería en Obras Civiles, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Av. Ecuador 3659, 9170124, Estación Central, Santiago, Chile.
| | - Fernández Lenys
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador
| | - Espinoza-Montero Patricio
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador
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18
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Ji B, Zhao Y, Yang Y, Tang C, Dai Y, Zhang X, Tai Y, Tao R, Ruan W. Insight into the performance discrepancy of GAC and CAC as air-cathode materials in constructed wetland-microbial fuel cell system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152078. [PMID: 34863746 DOI: 10.1016/j.scitotenv.2021.152078] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 06/13/2023]
Abstract
Constructed wetland-microbial fuel cell (CW-MFC) has exhibited the performance discrepancy between using granular activated carbon (GAC) and columnar activated carbon (CAC) as air-cathode materials. No doubt, this is linked with electrochemical performance and decontaminants characteristics in the CW-MFC system. To provide insight into this performance discrepancy, three CW-MFCs were designed with different carbon-material to construct varied shapes of air-cathodes. The results showed that the ring-shaped cathode filled with GAC yielded a highest voltage of 458 mV with maximum power density of 13.71 mW m-2 and >90% COD removal in the CW-MFC system. The electrochemical characteristics and the electron transport system activity (ETSA) are the driven force to bring the GAC a better electron transportation and oxygen reduction reaction (ORR). This will help elucidating underlying mechanisms of different activated carbon for air-cathode and thus promote its large application.
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Affiliation(s)
- Bin Ji
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, PR China; Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China
| | - Yaqian Zhao
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, PR China.
| | - Yang Yang
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China.
| | - Cheng Tang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, PR China; Dooge Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yunyu Dai
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China
| | - Xiaomeng Zhang
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China
| | - Yiping Tai
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China
| | - Ran Tao
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China
| | - Weifeng Ruan
- Department of Ecology, Institute of Hydrobiology, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, PR China
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Yuan J, Huang H, Chatterjee SG, Wang Z, Wang S. Effective factors for the performance of a co-generation system for bioethanol and electricity production via microbial fuel cell technology. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yadav A, Jadhav DA, Ghangrekar MM, Mitra A. Effectiveness of constructed wetland integrated with microbial fuel cell for domestic wastewater treatment and to facilitate power generation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 29:51117-51129. [PMID: 34826088 DOI: 10.1007/s11356-021-17517-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/09/2021] [Indexed: 02/05/2023]
Abstract
Constructed wetlands (CWs) have gained a lot of attention for wastewater treatment due to robustness and natural pollutant mitigation characteristics. This widely acknowledged technology possesses enough merits to derive direct electricity in collaboration with microbial fuel cell (MFC), thus taking advantage of microbial metabolic activities in the anoxic zone of CWs. In the present study, two identical lab-scale CWs were selected, each having 56 L capacity. One of the CW integrated with MFC (CW-MFC) contains two pairs of electrodes, i.e., carbon felt and graphite plate. The first pair of CW-MFC consists of a carbon felt cathode with a graphite plate anode, and the second pair contains a graphite plate cathode with a carbon felt anode. The other CW was not integrated with MFC and operated as a traditional CW for evaluating the performance. CW-MFC and CW were operated in continuous up-flow mode with a hydraulic retention time of 3 days and at different organic loading rates (OLRs) per unit surface area, such as 1.45 g m-2 day-1 (OLR-1), 2.43 g m-2 day-1 (OLR-2), and 7.25 g m-2 day-1 (OLR-3). The CW-MFC was able to reduce the organic matter, phosphate, and total nitrogen by 92%, 93%, and 70%, respectively, at OLR of 1.45 g m-2 day-1, which was found to be higher than that obtained in conventional CW. With increase in electrochemical redox activities, the second pair of electrodes made way for 3 times higher power density of 16.33 mW m-2 as compared to the first pair of electrodes in CW-MFC (5.35 mW m-2), asserting carbon felt as a good anode material to be used in CW-MFC. The CW-MFC with carbon felt as an anode material is proposed to improve the electro-kinetic activities for scalable applications to achieve efficient domestic wastewater treatment and electricity production.
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Affiliation(s)
- Anamika Yadav
- Department of Agricultural Engineering, Triguna Sen School of Technology, Assam University Silchar, Assam, 788011, India
- Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, 721302, India
| | - Dipak A Jadhav
- School of Water Resources, Indian Institute of Technology, Kharagpur, 721302, India.
- Department of Agricultural Engineering, Maharashtra Institute of Technology, Aurangabad, Maharashtra, 431010, India.
| | - Makarand M Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology, Kharagpur, 721302, India.
| | - Arunabha Mitra
- Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, 721302, India
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21
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Yang N, Zhan G, Luo H, Xiong X, Li D. Integrated simultaneous nitrification/denitrification and comammox consortia as efficient biocatalysts enhance treatment of domestic wastewater in different up-flow bioelectrochemical reactors. BIORESOURCE TECHNOLOGY 2021; 339:125604. [PMID: 34303104 DOI: 10.1016/j.biortech.2021.125604] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Simultaneous nitrification/denitrification (SND) can efficiently deplete NH4+ by using air-exposed biocathode (AEB) in bioelectrochemical reactors. However, the fluctuation of wastewater adversely affects the functional biofilms and therefore the performance. In this work, four up-flow bioelectrochemical reactors (UBERs) with some novel inocula were investigated to improve domestic wastewater treatment. The UBERs exhibited favorable removal of chemical oxygen demand (COD, 95%), NH4+-N (99%), and total nitrogen (TN, 99%). The maximum of current (2.7 A/m3), power density (136 mW/m3) and coulombic efficiency (20.5%) were obtained. Cyclic voltammetry analysis showed all the electrodes were of diversified catalytic reactions. Illumina pyrosequencing showed the predominant Ignavibacterium, Thauera, Nitrosomonas, Geminicoccus and Nitrospira were in all electrodes, contributing functional biofilms performing SND, comammox, and bioelectrochemical reactions. FAPROTAX analysis confirmed twenty-one functional groups with obvious changes related to chemoheterotrophy, respiration/oxidation/denitrification of nitrite and nitrate. Comfortingly, such novel diversified consortia in UBERs enhance the microbial metabolisms to treat domestic wastewater.
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Affiliation(s)
- Nuan Yang
- Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs (BIOMA), Chengdu 610041, China; CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Guoqiang Zhan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Huiqin Luo
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xia Xiong
- Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs (BIOMA), Chengdu 610041, China
| | - Daping Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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Ebrahimi A, Sivakumar M, McLauchlan C. A taxonomy of design factors in constructed wetland-microbial fuel cell performance: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 291:112723. [PMID: 33940362 DOI: 10.1016/j.jenvman.2021.112723] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
The past decade has seen the rapid development of constructed wetland-microbial fuel cell (CW-MFC) technology in many aspects. The first publication on the combination of constructed wetland (CW) and microbial fuel cell (MFC) appeared in 2012, subsequently, research on the subject has grown exponentially to improve the performance of CW-MFCs in their dual roles of wastewater treatment and power generation. Although significant research has been conducted on this technology worldwide, a comprehensive and critical review of effective controlling parameters is lacking. More broadly, research is needed to draw up-to-date conclusions on recent developments and to identify knowledge gaps for further studies. This review paper systematically enumerates and reviews research studies published in this area to determine the key design factors and their role in CW-MFC performance. Moreover, a taxonomy of all CW-MFC design parameters has been synthesised from the literature. Importantly, this original work provides a comprehensive conceptual framework for future researchers, designers, builders, and users to understand CW-MFC technology. Within the taxonomy, parameters are placed in three main categories (physical/environmental, chemical, and biological/electrochemical) and comprehensive details are given for each parameter. Finally, a comprehensive summary of the parameters has been tabulated showing their impact on CW-MFC operation, design recommendations from literature, and the significant research gaps that this review has identified within the existing literature. It is hoped that this paper will provide a clear and rich picture of this technology at its current stage of development and furthermore, will facilitate a deeper understanding of CW-MFC performance for long-term and large-scale development.
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Affiliation(s)
- Atieh Ebrahimi
- School of Civil, Mining, and Environmental Engineering, University of Wollongong, NSW, 2522, Australia.
| | - Muttucumaru Sivakumar
- School of Civil, Mining, and Environmental Engineering, University of Wollongong, NSW, 2522, Australia
| | - Craig McLauchlan
- Faculty of Engineering and Information Sciences, University of Wollongong, NSW, 2522, Australia
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23
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Sustainable, Decentralized Sanitation and Reuse with Hybrid Nature-Based Systems. WATER 2021. [DOI: 10.3390/w13111583] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nature (ecosystem) based processes for wastewater treatment include constructed wetlands (CWs), waste stabilization ponds, vegetated drainage ditches, buffer zones, instream or bankside river techniques, and mixotrophic systems, where light and CO2 are utilized, in addition to organic carbon compounds, by algal cultures. Algae-based systems can simultaneously remove organic matter, N, and P and may offer substantial energetic advantages compared to traditional biological treatment systems, require small spatial footprint, and contribute to biofuels production and CO2 emissions mitigation. Bioelectrochemical systems (BES) such as microbial fuel cells (MFCs) present characteristics compatible with the use in isolated realities for water and wastewater treatment with contextual energy recovery and may be combined with other nature-based process technologies to achieve good treatment and energy efficiencies. Despite that their application in real-scale plants has not been assessed yet, the most probable outcome will be the in situ/on site treatment (or pretreatment) of wastes for small “in house” plants not connected to the sewerage network. This paper focuses on the current practices and perspectives of hybrid nature-based systems, such as constructed wetlands and microalgae integrated phytoremediation plants, and their possible integration with microbial electrochemical technologies to increase recovery possibilities from wastes and positively contribute to a green economy approach.
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24
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Guo CQ, Cui YL. Improved solute transport and pollutant degradation model of free water surface constructed wetlands considering significant linear correlation between model parameters. BIORESOURCE TECHNOLOGY 2021; 327:124817. [PMID: 33578355 DOI: 10.1016/j.biortech.2021.124817] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/29/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
To unify the structures of solute transport and pollutant degradation models and evaluate the wetland performance conveniently, a pollutant degradation model combining first-order kinetics with the hybrid solute transport model (plug flow with dispersion + continuous stirred-tank reactor, PFD + CSTR) was developed. Orthogonal tests revealed significant correlation between the model parameters, and the original models were optimized via linear substitution of parameters. The improved PFD + CSTR solute transport model exhibited a satisfactory fit with the original model, and the average relative errors of the determination coefficient (R2) and correlation coefficient were <5%. The multiple linear regressions between the hydraulic indicators and model parameters were reconstructed and exhibited consistent structures between different stages. The degradation constant kaTN between the original and improved models exhibited high consistency (R2 = 0.982). Conclusively, the improved models exhibited good consistency with the original models and allowed rapid and accurate performance evaluation.
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Affiliation(s)
- Chang-Qiang Guo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; State Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
| | - Yuan-Lai Cui
- State Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China.
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Wang Y, Zhou J, Shi S, Zhou J, He X, He L. Hydraulic flow direction alters nutrients removal performance and microbial mechanisms in electrolysis-assisted constructed wetlands. BIORESOURCE TECHNOLOGY 2021; 325:124692. [PMID: 33453660 DOI: 10.1016/j.biortech.2021.124692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/02/2021] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
In this study, an electrolysis-assisted down-flow constructed wetland (E-DFCW) was successfully established, and achieved simultaneously efficient removal of PO43--P (93.6% ± 3.2%), NO3--N (97.1% ± 2.0%) and TN (80.6% ± 5.4%). When compared with electrolysis-assisted up-flow constructed wetland (E-UFCW), E-DFCW allowed significantly lower concentrations of PO43--P, NO3--N, total Fe and SO42--S in effluents. In addition, microbial community and functional genes prediction results indicated that hydraulic flow direction significantly altered microbial nitrogen, sulfur and carbon metabolisms in electrolysis-assisted constructed wetlands (E-CWs). Specifically, multi-path denitrification facilitated NO3--N reduction in cathodic chamber of E-DFCW, whereas autohydrogenotrophic denitrification might dominate NO3--N reduction in cathodic chamber of E-UFCW. More abundant and diverse denitrifiers in cathodic chamber of E-DFCW contributed to enhanced denitrification performance. Overall, this work provides microbial insights into multi-path nitrogen metabolisms in electrolysis-assisted denitrification systems in response to hydraulic flow direction.
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Affiliation(s)
- Yingmu Wang
- College of Civil Engineering, Fuzhou University, Fujian 350116, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jian Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
| | - Shuohui Shi
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jiong Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Xuejie He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Lei He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
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26
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Ren B, Wang T, Zhao Y. Two-stage hybrid constructed wetland-microbial fuel cells for swine wastewater treatment and bioenergy generation. CHEMOSPHERE 2021; 268:128803. [PMID: 33143898 DOI: 10.1016/j.chemosphere.2020.128803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/24/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
A newly emerged alum sludge-based hybrid constructed wetland-microbial fuel cells (CW-MFCs), i.e. vertical upflow CW coupled MFC as 1st stage and horizontal subsurface flow CW coupled MFC as 2nd stage (VFCW-MFC + HSSFCW-MFC), was firstly developed for swine wastewater treatment and electricity generation. Swine wastewater and multi-set air-cathodes were applied to investigate the pollutants removal behavior and the power production. Six-month trial suggested that the overall removal efficiency of SS, COD, NH4+-N, NO3--N, TN, TP and PO43--P was 76 ± 12.4, 72 ± 7.4, 59 ± 28.3, 69 ± 25.6, 47 ± 19.7, 85 ± 9.5 and 88 ± 8.7%, respectively. The two stages hybrid system (VFCW-MFC + HSSFCW-MFC) continuously generated electrical power with average voltages of 0.44 ± 0.09 and 0.34 ± 0.09 V, and power densities of 33.3 ± 13.81 and 9.0 ± 2.5 mW/m³ in 1st and 2nd stage, respectively. The average net energy recovery (NER) of 1st stage and 2nd stage is in turn 0.91 ± 0.16 and 2.76 ± 0.70 Wh/kg·COD. It indicates that the hybrid CW-MFCs has higher removal efficiency than single stage CW-MFC, while 1st stage plays the major role both in pollutants removal and power generation.
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Affiliation(s)
- Baiming Ren
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an, 710054, PR China; School of Water and Environment, Chang'an University, Xi'an, 710054, PR China; Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Tongyue Wang
- Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Belfield, Dublin 4, Ireland; School of Science,Xi'an University of Architecture and Technology,No. 13, Middle Yanta Road, Beilin District, Xi'an, 710055, PR China
| | - Yaqian Zhao
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China.
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27
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Ji B, Zhao Y, Vymazal J, Mander Ü, Lust R, Tang C. Mapping the field of constructed wetland-microbial fuel cell: A review and bibliometric analysis. CHEMOSPHERE 2021; 262:128366. [PMID: 33182086 DOI: 10.1016/j.chemosphere.2020.128366] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
The embedding microbial fuel cell (MFC) into constructed wetlands (CW) to form CW-MFC bears the potential to obtain bioelectricity and a clean environment. In this study, a bibliometric analysis using VOSviewer based on Web of Science data was conducted to provide an overview by tracing the development footprint of this technology. The countries, institutions, authors, key terms, and keywords were tracked and corresponding mapping was generated. From 2012 to September 2020, 442 authors from 129 organizations in 26 countries published 135 publications in 42 journals with total citation of 3139 times were found. The key terms analysis showed four clusters: bioelectricity generation performance, mechanism study, refractory pollutants removal, and enhanced conventional contaminants removal. Further research themes include exploring the biochemical properties of electrochemically active bacteria, emerging contaminants removal, effective bioelectricity harvest and the use, and biosensor development as well as scaling-up for real field application. The bibliometric results provide valuable references and information on potential research directions for future studies.
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Affiliation(s)
- Bin Ji
- Department of Municipal and Environmental Engineering, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Yaqian Zhao
- Department of Municipal and Environmental Engineering, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China.
| | - Jan Vymazal
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Ülo Mander
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014, Tartu, Estonia
| | - Rauno Lust
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014, Tartu, Estonia
| | - Cheng Tang
- School of Water and Environmental Engineering, Chang'an University, Xi'an, 710054, PR China
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28
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Gupta S, Srivastava P, Patil SA, Yadav AK. A comprehensive review on emerging constructed wetland coupled microbial fuel cell technology: Potential applications and challenges. BIORESOURCE TECHNOLOGY 2021; 320:124376. [PMID: 33242686 DOI: 10.1016/j.biortech.2020.124376] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 05/09/2023]
Abstract
Constructed wetlands (CWs) integrated with bioelectrochemical systems (BESs) are being intensively researched with the names like constructed wetland-microbial fuel cell (CW-MFC), electro-wetlands, electroactive wetlands, and microbial electrochemical technologies-based constructed wetland since the last decade. The implantation of BES in CW facilitates the tuning of redox activities and electron flow balance in aerobic and anaerobic zones in the CW bed matrix, thereby alleviating the limitation associated with electron acceptor availability and increasing its operational controllability. The benefits of CW-MFC include high treatment efficiency, electricity generation, and recalcitrant pollutant abatement. This article presents CW-MFC technology's journey since its emergence to date, encompassing the research done so far, including the basic principle and functioning, bio-electrocatalysts as its machinery, influential factors for microbial interactions, and operational parameters controlling different processes. A few key challenges and potential applications are also discussed for the CW-MFC systems.
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Affiliation(s)
- Supriya Gupta
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, India
| | - Pratiksha Srivastava
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston 7248, Australia
| | - Sunil A Patil
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar, 140306, Punjab, India
| | - Asheesh Kumar Yadav
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India.
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29
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Wang W, Zhang Y, Li M, Wei X, Wang Y, Liu L, Wang H, Shen S. Operation mechanism of constructed wetland-microbial fuel cells for wastewater treatment and electricity generation: A review. BIORESOURCE TECHNOLOGY 2020; 314:123808. [PMID: 32713782 DOI: 10.1016/j.biortech.2020.123808] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Constructed wetland-microbial fuel cells (CWL-MFCs) are eco-friendly and sustainable technology, simultaneously implementing contaminant removal and electricity production. According to intensive research over the last five years, this review on the operation mechanism was conducted for in-depth understanding and application guidance of CWL-MFCs. The electrochemical mechanism based on anodic oxidation and cathodic reduction is the core for improved treatment in CWL-MFCs compared to CWLs. As the dominant bacterial community, the abundance and gene-expression patterns of electro-active bacteria responds to electrode potentials and contaminant loadings, further affecting operational efficiency of CWL-MFCs. Plants benefit COD and N removal by supplying oxygen for aerobic degradation and rhizosphere secretions for microorganisms. Multi-electrode configuration, carbon-based electrodes and rich porous substrates affect transfer resistance and bacterial communities. The possibilities of CWL-MFCs targeting at recalcitrant contaminants like flame retardants and interchain interactions among effect components need systematic research.
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Affiliation(s)
- Wenjing Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Yu Zhang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Mengxiang Li
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Xiaogang Wei
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Yali Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Ling Liu
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Hongjie Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China.
| | - Shigang Shen
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China
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30
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Martinez-Guerra E, Ghimire U, Nandimandalam H, Norris A, Gude VG. Wetlands for environmental protection. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1677-1694. [PMID: 32744347 DOI: 10.1002/wer.1422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
This article presents an update on the research and practical demonstration of wetland-based treatment technologies for protecting water resources and environment covering papers published in 2019. Wetland applications in wastewater treatment, stormwater management, and removal of nutrients, metals, and emerging pollutants including pathogens are highlighted. A summary of studies focusing on the effects of vegetation, wetland design and operation strategies, and process configurations and modeling, for efficient treatment of various municipal and industrial wastewaters, is included. In addition, hybrid and innovative processes with wetlands as a platform treatment technology are presented.
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Affiliation(s)
- Edith Martinez-Guerra
- Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA
| | - Umesh Ghimire
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Hariteja Nandimandalam
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Anna Norris
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Veera Gnaneswar Gude
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
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31
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Srivastava P, Abbassi R, Yadav AK, Garaniya V, Asadnia M. A review on the contribution of electron flow in electroactive wetlands: Electricity generation and enhanced wastewater treatment. CHEMOSPHERE 2020; 254:126926. [PMID: 32957303 DOI: 10.1016/j.chemosphere.2020.126926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
In less than a decade, bioelectrochemical systems/microbial fuel cell integrated constructed wetlands (electroactive wetlands) have gained a considerable amount of attention due to enhanced wastewater treatment and electricity generation. The enhancement in treatment has majorly emanated from the electron transfer or flow, particularly in anaerobic regions. However, the chemistry associated with electron transfer is complex to understand in electroactive wetlands. The electroactive wetlands accommodate diverse microbial community in which each microbe set their own potential to further participate in electron transfer. The conductive materials/electrodes in electroactive wetlands also contain some potential, due to which, several conflicts occur between microbes and electrode, and results in inadequate electron transfer or involvement of some other reaction mechanisms. Still, there is a considerable research gap in understanding of electron transfer between electrode-anode and cathode in electroactive wetlands. Additionally, the interaction of microbes with the electrodes and understanding of mass transfer is also essential to further understand the electron recovery. This review mainly deals with the electron transfer mechanism and its role in pollutant removal and electricity generation in electroactive wetlands.
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Affiliation(s)
- Pratiksha Srivastava
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston, 7248, Australia
| | - Rouzbeh Abbassi
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia.
| | - Asheesh Kumar Yadav
- Environment and Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
| | - Vikram Garaniya
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston, 7248, Australia
| | - Mohsen Asadnia
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia
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32
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Granulation of Drinking Water Treatment Residues: Recent Advances and Prospects. WATER 2020. [DOI: 10.3390/w12051400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Beneficial reuse of drinking water treatment plant residues (WTRs) has been intensively studied worldwide in the last decades, but few engineering applications can be found. The majority of WTRs were directly reused in cake form (after dewatering), e.g., alum sludge cake as main substrate used in constructed wetlands (CWs), or oven dried and ground powdery form, e.g., sorbent for pollutant removal. However, WTRs reuse in such forms has several drawbacks, i.e., difficulty of recovering and easy clogging (in CWs), which result in limited WTRs engineering applications. Granulation or pelleting could widen and be a wiser WTRs reuse route and also seems to be a promising strategy to overcome the “application bottleneck” issues. In the literature, a number of trials of WTRs granulation have been reported since 2008, including sintering ceramsite, gel entrapment and newly emerged techniques. Hence, there is a need to overlook these studies and promote WTRs granulation for further development. To this end, this review firstly provides a piece of updated comprehensive information and critical analysis regarding WTRs granulation/pelleting technology. It aims to enhance WTRs granulation studies in the developing stage and thus enlarge WTRs engineering applications.
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33
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Tao M, Guan L, Jing Z, Tao Z, Wang Y, Luo H, Wang Y. Enhanced denitrification and power generation of municipal wastewater treatment plants (WWTPs) effluents with biomass in microbial fuel cell coupled with constructed wetland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136159. [PMID: 31887514 DOI: 10.1016/j.scitotenv.2019.136159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 12/12/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
A microbial fuel cell-constructed wetland (MFC-CW) with water hyacinth is established to remove the nitrogen and organics from municipal wastewater treatment plants (WWTPs) effluents. Because insufficient carbon sources in influent might decrease pollutants removal efficiency and electricity generation, this research aimed to select high-quality and low-cost biomass as additional carbon source to improve the performance of MFC-CW. Cellulose and hemicellulose (xylan) were chosen as the biomass. Results indicated that xylan displayed a higher nitrate removal (above 92%) compared with cellulose (10.9%). With xylan as carbon source, the anode packing removed nitrate above 80%, while the cathode packing only removed around 50%. With glucose as sole carbon source, the maximum total nitrogen (TN) removal of MFC-CW was 87.66 ± 4.23%, which was higher than that of MFC (85.58 ± 4.14%). The chemical oxygen demand (COD) and TN in the effluent of MFC-CW were maintained below 25 mg/L and 1.5 mg/L, respectively, with the COD/TN ratio around 5.4 and hydraulic retention time (HRT) at 48 h. The TN removal reached the maximum efficiency of 88.78 ± 3.98% when glucose and xylan ratio was in 40%:60% as composite carbon sources, and COD and TN in the effluent were below 20 mg/L and 1.5 mg/L, respectively. In addition, xylan as the additional carbon source significantly promoted the power density compared with sole glucose. Microbial community diversity in the MFC-CW was significantly higher than that in the single MFC or CW. Proteobacteria and Cyanobacteria_norank were relatively more dominant in the MFC-CW than those in the single MFC or CW, which accounted for high nitrogen removal and power generation. Findings in this study proved that MFC-CW with biomass addition enhanced nitrogen removal and power generation.
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Affiliation(s)
- Mengni Tao
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lin Guan
- Nanjing Municipal Design and Research Institute Co., Ltd., Nanjing 210008, China
| | - Zhaoqian Jing
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhengkai Tao
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yue Wang
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Hui Luo
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yin Wang
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
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34
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Treesubsuntorn C, Chaiworn W, Surareungchai W, Thiravetyan P. Increasing of electricity production from Echinodosus cordifolius-microbial fuel cell by inoculating Bacillus thuringiensis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:538-545. [PMID: 31185401 DOI: 10.1016/j.scitotenv.2019.06.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/24/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
The wetland-microbial fuel cell (MFC) is a novel electricity generating technology. However, these systems can generate only limited electric energy. Since nitrification is a key mechanism driving electrical power in wetland-MFC systems, an effective nitrifying bacteria, Bacillus thuringiensis, was used to inoculate a wetland-MFC to enhance the maximum power density of the system. B. thuringiensis effectively enhanced the maximum power density, producing about 20-35 mW m-2 of maximum power density. Interestingly, over the first 120 days of operation, the wetland-MFC system with only B. thuringiensis generated more power than a system containing an Echinodosus cordifolius plant in addition to B. thuringiensis, because E. cordifolius can took up nitrate (NO3-) and phosphate (PO43-) in system's solution. Nitrate and PO43- act as important anions driving electric current in the system. After 120 days of operation though, the combined E. cordifolius and B. thuringiensis system maintained 20-35 mW m-2 maximum power density and the maximum power density of the system only inoculated with B. thuringiensis decreased continuously. Gene (16S rRNA) copy numbers for B. thuringiensis showed that when E. cordifolius was presented, the bacterium was able to continue growing after 120 days of operation. B. thuringiensis did not grow as well after 120 days in the system that did not contain a plant. This study presents a strategy for enhancing electric power output from a wetland-MFC by inoculating the system with B. thuringiensis and maintaining the bacterium's population with the support of an E. cordifolius plant. The result clearly show that B. thuringiensis can enhance electric power generation in the presence of the plant and the system can self-sustain for longer than 180 days of operation while producing 20-35 mW m-2 maximum power density.
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Affiliation(s)
- Chairat Treesubsuntorn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand.
| | - Wachira Chaiworn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Werasak Surareungchai
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Paitip Thiravetyan
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
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Guo F, Shi Z, Yang K, Wu Y, Liu H. Enhancing the power performance of sediment microbial fuel cells by novel strategies: Overlying water flow and hydraulic-driven cathode rotating. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 678:533-542. [PMID: 31078843 DOI: 10.1016/j.scitotenv.2019.04.439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/28/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
Sediment microbial fuel cells (SMFCs) are promising power sources for environmental monitoring in remote areas and environment-friendly solutions to river sediment contamination. However, cathodic limitations will significantly decrease power performance and limit its practical application. In this work, the control SMFC (SMFC-C) with cathode horizontally and fully submerged below the overlying water, and the hydraulic-driven rotating cathode SMFC (SMFC-R) was constructed. Overlying water flow and hydraulic-driven cathode rotating as novel strategies for SMFCs towards field applications were proposed. Results demonstrated that better power performance under static condition was obtained in SMFC-R than in SMFC-C, that the overlying water flow could significantly increase the maximum power density (MPD) in SMFC-C over the static condition, and that the cathode rotating further improved MPD in SMFC-R. The MPD obtained under static condition were 26.5 mW/m2 and 45.1 mW/m2 in SMFC-C and SMFC-R, which increased to 38.8 mW/m2 and 47.3 mW/m2 under water flow and cathode rotating condition, respectively. Analyses on cathode potential, overlying water pH and dissolved oxygen suggested severe cathodic limitations in SMFC-C under static condition which could be diminished by overlying water flow. However, almost no such limitations were observed in SMFC-R even under static condition, which is probably due to the fact that the cathodic oxygen reaction in SMFC-R mainly occurred on the cathode exposed to the air rather than on that submerged below the water. Identical anode performance was obtained in both SMFCs under different conditions, which were not an influencing factor leading to different power performance.
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Affiliation(s)
- Fei Guo
- School of Civil Engineering, Architecture and Environment, Xihua University, Chengdu 610039, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Zongyang Shi
- School of Civil Engineering, Architecture and Environment, Xihua University, Chengdu 610039, China
| | - Kaiming Yang
- School of Civil Engineering, Architecture and Environment, Xihua University, Chengdu 610039, China
| | - Yan Wu
- School of Civil Engineering, Architecture and Environment, Xihua University, Chengdu 610039, China
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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