1
|
Fathima A, Ilankoon IMSK, Zhang Y, Chong MN. Scaling up of dual-chamber microbial electrochemical systems - An appraisal using systems design approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169186. [PMID: 38086487 DOI: 10.1016/j.scitotenv.2023.169186] [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: 09/05/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
Impetus to minimise the energy and carbon footprints of evolving wastewater resource recovery facilities has promoted the development of microbial electrochemical systems (MES) as an emerging energy-neutral and sustainable platform technology. Using separators in dual-chamber MES to isolate anodic and cathodic environments creates endless opportunities for its myriad applications. Nevertheless, the high internal resistance and the complex interdependencies among various system factors have challenged its scale-up. This critical review employed a systems approach to examine the complex interdependencies and practical issues surrounding the implementation and scalability of dual-chamber MES, where the anodic and cathodic reactions are mutually appraised to improve the overall system efficiency. The robustness and stability of anodic biofilms in large-volume MES is dependent on its inoculum source, antecedent history and enrichment strategies. The composition and anode-respiring activity of these biofilms are modulated by the anolyte composition, while their performance demands a delicate balance between the electrode size, macrostructure and the availability of substrates, buffers and nutrients when using real wastewater as anolyte. Additionally, the catholyte governed the reduction environment and associated energy consumption of MES with scalable electrocatalysts needed to enhance the sluggish reaction kinetics for energy-efficient resource recovery. A comprehensive assessment of the dual-chamber reactor configuration revealed that the tubular, spiral-wound, or plug-in modular MES configurations are suitable for pilot-scale, where it could be designed more effectively using efficient electrode macrostructure, suitable membranes and bespoke strategies for continuous operation to maximise their performance. It is anticipated that the critical and analytical understanding gained through this review will support the continuous development and scaling-up of dual-chamber MES for prospective energy-neutral treatment of wastewater and simultaneous circular management of highly relevant environmental resources.
Collapse
Affiliation(s)
- Arshia Fathima
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - I M S K Ilankoon
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Meng Nan Chong
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia.
| |
Collapse
|
2
|
Rogińska J, Philippon T, Hoareau M, P. A. Jorand F, Barrière F, Etienne M. Challenges and Applications of Nitrate-Reducing Microbial Biocathodes. Bioelectrochemistry 2023; 152:108436. [PMID: 37099858 DOI: 10.1016/j.bioelechem.2023.108436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 03/31/2023] [Accepted: 04/01/2023] [Indexed: 04/08/2023]
Abstract
Bioelectrochemical systems which employ microbes as electrode catalysts to convert chemical energy into electrical energy (or conversely), have emerged in recent years for water sanitation and energy recovery. Microbial biocathodes, and especially those reducing nitrate are gaining more and more attention. The nitrate-reducing biocathodes can efficiently treat nitrate-polluted wastewater. However, they require specific conditions and they have not yet been applied on a large scale. In this review, the current knowledge on nitrate-reducing biocathodes will be summarized. The fundamentals of microbial biocathodes will be discussed, as well as the progress towards applications for nitrate reduction in the context of water treatment. Nitrate-reducing biocathodes will be compared with other nitrate-removal techniques and the challenges and opportunities of this approach will be identified.
Collapse
|
3
|
Viggi CC, Tucci M, Resitano M, Matturro B, Crognale S, Feigl V, Molnár M, Rossetti S, Aulenta F. Passive electrobioremediation approaches for enhancing hydrocarbons biodegradation in contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157325. [PMID: 35839884 DOI: 10.1016/j.scitotenv.2022.157325] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/10/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Electrobioremediation technologies hold considerable potential for the treatment of soils contaminated by petroleum hydrocarbons (PH), since they allow stimulating biodegradation processes with no need for subsurface chemicals injection and with little to no energy consumption. Here, a microbial electrochemical snorkel (MES) was applied for the treatment of a soil contaminated by hydrocarbons. The MES consists of direct coupling of a microbial anode with a cathode, being a single conductive, non-polarized material positioned suitably to create an electrochemical connection between the anoxic zone (the contaminated soil) and the oxic zone (the overlying oxygenated water). Soil was also supplemented with electrically conductive particles of biochar as a strategy to construct a conductive network with microbes in the soil matrix, thus extending the radius of influence of the snorkel. The results of a comprehensive suite of chemical, microbiological and ecotoxicological analyses evidenced that biochar addition, rather than the presence of a snorkel, was the determining factor in accelerating PH removal from contaminated soils, possibly accelerating syntrophic and/or cooperative metabolisms involved in the degradation of PH. The enhancement of biodegradation was mirrored by an increased abundance of anaerobic and aerobic microorganisms known to be involved in the degradation of PH and related functional genes. Plant ecotoxicity assays confirmed a reduction of soils toxicity in treatments receiving electrically conductive biochar.
Collapse
Affiliation(s)
- Carolina Cruz Viggi
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy.
| | - Matteo Tucci
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| | - Marco Resitano
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| | - Bruna Matturro
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| | - Simona Crognale
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| | - Viktória Feigl
- Department of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Mónika Molnár
- Department of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Simona Rossetti
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| | - Federico Aulenta
- Water Research Institute (IRSA), National Research Council (CNR), Montelibretti (RM) 00010, Italy
| |
Collapse
|
4
|
Hubenova Y, Chorbadzhiyska E, Kostov KL, Mitov M. Efficient gold recovery by microbial electrochemical technologies. Bioelectrochemistry 2022; 149:108311. [DOI: 10.1016/j.bioelechem.2022.108311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 11/07/2022]
|
5
|
Mitov M, Chorbadzhiyska E, Bardarov I, Kostov KL, Hubenova Y. Silver recovery by microbial electrochemical snorkel and microbial fuel cell. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
6
|
Asensio Y, Llorente M, Sánchez-Gómez A, Manchon C, Boltes K, Esteve-Núñez A. Microbial Electrochemical Fluidized Bed Reactor: A Promising Solution for Removing Pollutants From Pharmaceutical Industrial Wastewater. Front Microbiol 2021; 12:737112. [PMID: 34899625 PMCID: PMC8664407 DOI: 10.3389/fmicb.2021.737112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/26/2021] [Indexed: 11/24/2022] Open
Abstract
The capacity of electroactive bacteria to exchange electrons with electroconductive materials has been explored during the last two decades as part of a new field called electromicrobiology. Such microbial metabolism has been validated to enhance the bioremediation of wastewater pollutants. In contrast with standard materials like rods, plates, or felts made of graphite, we have explored the use of an alternative strategy using a fluid-like electrode as part of a microbial electrochemical fluidized bed reactor (ME-FBR). After verifying the low adsorption capacity of the pharmaceutical pollutants on the fluid-bed electrode [7.92 ± 0.05% carbamazepine (CBZ) and 9.42 ± 0.09% sulfamethoxazole (SMX)], our system showed a remarkable capacity to outperform classical solutions for removing pollutants (more than 80%) from the pharmaceutical industry like CBZ and SMX. Moreover, the ME-FBR performance revealed the impact of selecting an anode potential by efficiently removing both pollutants at + 200 mV. The high TOC removal efficiency also demonstrated that electrostimulation of electroactive bacteria in ME-FBR could overcome the expected microbial inhibition due to the presence of CBZ and SMX. Cyclic voltammograms revealed the successful electron transfer between microbial biofilm and the fluid-like electrode bed throughout the polarization tests. Finally, Vibrio fischeri-based ecotoxicity showed a 70% reduction after treating wastewater with a fluid-like anode (+ 400 mV), revealing the promising performance of this bioelectrochemical approach.
Collapse
Affiliation(s)
- Yeray Asensio
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Spain
| | - María Llorente
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Alejandro Sánchez-Gómez
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Spain
| | | | - Karina Boltes
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Abraham Esteve-Núñez
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Spain
- IMDEA Water Institute, Alcalá de Henares, Spain
| |
Collapse
|
7
|
Hoareau M, Etcheverry L, Erable B, Bergel A. Oxygen supply management to intensify wastewater treatment by a microbial electrochemical snorkel. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Rogińska J, Perdicakis M, Midoux C, Bouchez T, Despas C, Liu L, Tian JH, Chaumont C, P A Jorand F, Tournebize J, Etienne M. Electrochemical analysis of a microbial electrochemical snorkel in laboratory and constructed wetlands. Bioelectrochemistry 2021; 142:107895. [PMID: 34364026 DOI: 10.1016/j.bioelechem.2021.107895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 11/30/2022]
Abstract
Microbial electrochemical snorkel (MES) is a short-circuited microbial fuel cell applicable to water treatment that does not produce energy but requires lower cost for its implementation. Few reports have already described its water treatment capabilities but no deeper electrochemical analysis were yet performed. We tested various materials (iron, stainless steel and porous graphite) and configurations of snorkel in order to better understand the rules that will control in a wetland the mixed potential of this self-powered system. We designed a model snorkel that was studied in laboratory and on the field. We confirmed the development of MES by identifying anodic and cathodic parts, by measuring the current between them and by analyzing microbial ecology in laboratory and field experiments. An important application is denitrification of surface water. Here we discuss the influence of nitrate on its electrochemical response and denitrification performances. Introducing nitrate caused the increase of the mixed potential of MES and of current at a potential value relatively more positive than for nitrate-reducing biocathodes described in the literature. The major criteria for promoting application of MES in artificial wetland dedicated to mitigation of non-point source nitrate pollution from agricultural water are considered.
Collapse
Affiliation(s)
| | | | - Cédric Midoux
- UR PROSE, Université de Paris Saclay, INRAE, centre d'Antony, 92761 Antony Cedex, France
| | - Théodore Bouchez
- UR PROSE, Université de Paris Saclay, INRAE, centre d'Antony, 92761 Antony Cedex, France
| | | | - Liang Liu
- Université de Lorraine, CNRS, LCPME, F-54000 Nancy, France
| | - Jiang-Hao Tian
- UR PROSE, Université de Paris Saclay, INRAE, centre d'Antony, 92761 Antony Cedex, France
| | - Cédric Chaumont
- UR HYCAR, Université de Paris Saclay, INRAE, centre d'Antony, 92761, Antony Cedex, France
| | | | - Julien Tournebize
- UR HYCAR, Université de Paris Saclay, INRAE, centre d'Antony, 92761, Antony Cedex, France
| | | |
Collapse
|
9
|
Centimeter-Long Microbial Electron Transport for Bioremediation Applications. Trends Biotechnol 2020; 39:181-193. [PMID: 32680591 DOI: 10.1016/j.tibtech.2020.06.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023]
Abstract
Microbial bioremediation based on nano- to micrometer-scale electron transport has been intensively studied during the past decade, but its application can be hindered by a deficiency of suitable electron acceptors or slow mass transportation at contaminated sites. Microbial long-distance electron transport (LDET), which can couple spatially separated redox reactions across distances in natural environments, has recently emerged at centimeter-length scales. LDET explains a range of globally important biogeochemical phenomena and overcomes the drawbacks of conventional bioremediation by directly linking distant electron donors and acceptors. Here, we highlight recent research outcomes in examining, characterizing, and engineering LDET, and describe how LDET can be exploited to develop advanced technologies for the bioremediation of soils and sediments.
Collapse
|
10
|
Cecconet D, Sabba F, Devecseri M, Callegari A, Capodaglio AG. In situ groundwater remediation with bioelectrochemical systems: A critical review and future perspectives. ENVIRONMENT INTERNATIONAL 2020; 137:105550. [PMID: 32086076 DOI: 10.1016/j.envint.2020.105550] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/15/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Groundwater contamination is an ever-growing environmental issue that has attracted much and undiminished attention for the past half century. Groundwater contamination may originate from both anthropogenic (e.g., hydrocarbons) and natural compounds (e.g., nitrate and arsenic); to tackle the removal of these contaminants, different technologies have been developed and implemented. Recently, bioelectrochemical systems (BES) have emerged as a potential treatment for groundwater contamination, with reported in situ applications that showed promising results. Nitrate and hydrocarbons (toluene, phenanthrene, benzene, BTEX and light PAHs) have been successfully removed, due to the interaction of microbial metabolism with poised electrodes, in addition to physical migration due to the electric field generated in a BES. The selection of proper BESs relies on several factors and problems, such as the complexity of groundwater and subsoil environment, scale-up issues, and energy requirements that need to be accounted for. Modeling efforts could help predict case scenarios and select a proper design and approach, while BES-based biosensing could help monitoring remediation processes. In this review, we critically analyze in situ BES applications for groundwater remediation, focusing in particular on different proposed setups, and we identify and discuss the existing research gaps in the field.
Collapse
Affiliation(s)
- Daniele Cecconet
- Department of Civil Engineering and Architecture, University of Pavia, Via Adolfo Ferrata 3, 27100 Pavia, Italy.
| | - Fabrizio Sabba
- Department of Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Matyas Devecseri
- Department of Sanitary and Environmental Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111 Budapest, Hungary
| | - Arianna Callegari
- Department of Civil Engineering and Architecture, University of Pavia, Via Adolfo Ferrata 3, 27100 Pavia, Italy
| | - Andrea G Capodaglio
- Department of Civil Engineering and Architecture, University of Pavia, Via Adolfo Ferrata 3, 27100 Pavia, Italy
| |
Collapse
|
11
|
Hou L, Li J, Zheng Z, Sun Q, Liu Y, Zhang K. Cultivating river sediments into efficient denitrifying sludge for treating municipal wastewater. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190304. [PMID: 31598285 PMCID: PMC6774965 DOI: 10.1098/rsos.190304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
The river sediment contains a lot of pollutants in many cases, and needs to be treated appropriately for the restoration of water environments. In this study, a novel method was developed to convert river sediment into denitrifying sludge in a sequencing batch reactor (SBR). The river sediment was added into the reactor daily and the hydraulic retention time (HRT) of the reactor was gradually reduced from 8 to 4 h. The reactor achieved in the N O 3 - N removal efficiency of 85% with the N O 3 - N removal rate of 0.27 kg N m-3 d-1. Response surface analysis represents that nitrate removal was affected mainly by HRT, followed by sediment addition. The denitrifying sludge achieved the highest activity with the following conditions: N O 3 - N 50 mg l-1, HRT 6 h and adding 6 ml river sediments to 1 l wastewater of reactor per day. As a result, the cultivated denitrifying sludge could remove 80% N O 3 - N for real municipal wastewater, and the high-throughput sequence analysis indicated that major denitrifying bacteria genera and the relative abundance in the cultivated denitrifying sludge were Diaphorobacter (33.82%) and Paracoccus (24.49%). The river sediments cultivating method in this report can not only obtain denitrifying sludge, but also make use of sediment resources, which has great application potential.
Collapse
Affiliation(s)
| | - Jun Li
- Author for correspondence: Jun Li e-mail:
| | | | | | | | | |
Collapse
|
12
|
Removal of Hepatitis B virus surface HBsAg and core HBcAg antigens using microbial fuel cells producing electricity from human urine. Sci Rep 2019; 9:11787. [PMID: 31409853 PMCID: PMC6692344 DOI: 10.1038/s41598-019-48128-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/25/2019] [Indexed: 01/08/2023] Open
Abstract
Microbial electrochemical technology is emerging as an alternative way of treating waste and converting this directly to electricity. Intensive research on these systems is ongoing but it currently lacks the evaluation of possible environmental transmission of enteric viruses originating from the waste stream. In this study, for the first time we investigated this aspect by assessing the removal efficiency of hepatitis B core and surface antigens in cascades of continuous flow microbial fuel cells. The log-reduction (LR) of surface antigen (HBsAg) reached a maximum value of 1.86 ± 0.20 (98.6% reduction), which was similar to the open circuit control and degraded regardless of the recorded current. Core antigen (HBcAg) was much more resistant to treatment and the maximal LR was equal to 0.229 ± 0.028 (41.0% reduction). The highest LR rate observed for HBsAg was 4.66 ± 0.19 h−1 and for HBcAg 0.10 ± 0.01 h−1. Regression analysis revealed correlation between hydraulic retention time, power and redox potential on inactivation efficiency, also indicating electroactive behaviour of biofilm in open circuit control through the snorkel-effect. The results indicate that microbial electrochemical technologies may be successfully applied to reduce the risk of environmental transmission of hepatitis B virus but also open up the possibility of testing other viruses for wider implementation.
Collapse
|
13
|
Microbial electrochemical snorkels (MESs): A budding technology for multiple applications. A mini review. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2019.05.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
14
|
Microbial Electrochemical Technologies for Wastewater Treatment: Principles and Evolution from Microbial Fuel Cells to Bioelectrochemical-Based Constructed Wetlands. WATER 2018. [DOI: 10.3390/w10091128] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Microbial electrochemical technologies (MET) rely on the presence of the metabolic activity of electroactive bacteria for the use of solid-state electrodes for oxidizing different kinds of compound that can lead to the synthesis of chemicals, bioremediation of polluted matrices, the treatment of contaminants of interest, as well as the recovery of energy. Keeping these possibilities in mind, there has been growing interest in the use of electrochemical technologies for wastewater treatment, if possible with simultaneous power generation, since the beginning of the present century. In the last few years, there has been growing interest in exploring the possibility of merging MET with constructed wetlands offering a new option of an intensified wetland system that could maintain a high performance with a lower footprint. Based on that interest, this paper explains the general principles of MET, and the different known extracellular electron transfer mechanisms ruling the interaction between electroactive bacteria and potential solid-state electron acceptors. It also looks at the adoption of those principles for the development of MET set-ups for simultaneous wastewater treatment and power generation, and the challenges that the technology faces. Ultimately, the most recent developments in setups that merge MET with constructed wetlands are presented and discussed.
Collapse
|
15
|
Oliot M, Erable B, Solan MLD, Bergel A. Increasing the temperature is a relevant strategy to form microbial anodes intended to work at room temperature. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.10.110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
16
|
Microbial fuel cells connected in series in a common electrolyte underperform: Understanding why and in what context such a set-up can be applied. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.114] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
17
|
Yuan J, Dong W, Sun F, Zhao K, Du C, Shao Y. Bacterial communities and enzymatic activities in the vegetation-activated sludge process (V-ASP) and related advantages by comparison with conventional constructed wetland. BIORESOURCE TECHNOLOGY 2016; 220:341-351. [PMID: 27591520 DOI: 10.1016/j.biortech.2016.08.095] [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: 07/04/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 06/06/2023]
Abstract
A new-developed vegetation-activated sludge process (V-ASP) was implemented for decentralized domestic wastewater treatment, and studied in lab-scale and full-scale. The main purpose of this work was the investigation of biomass activities and microbial communities in V-ASP by comparison with conventional constructed wetland (CW), to unveil the causations of its consistently higher pollutants removal efficiencies. Compared with CWs, V-ASP has greater vegetation nitrogen and phosphorus uptake rates, higher biomass and enzymatic activities, and more bacteria community diversity. The microbial community structure was comprehensively analyzed by using high-throughput sequencing. It was observed that Proteobacteria was dominated in both CWs and V-ASPs, while their subdivisions distribution was rather different. V-ASPs contained a higher nitrite-oxidizing bacteria (Nitrospira) abundances that resulted in a consistently better nitrogen removal efficiency. Hence, a long-term experiment of full-scale V-ASP displayed stably excellent capability in resistance of influent loading shocks and seasonal temperature effect.
Collapse
Affiliation(s)
- Jiajia Yuan
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China
| | - Wenyi Dong
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China
| | - Feiyun Sun
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China.
| | - Ke Zhao
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China
| | - Changhang Du
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China
| | - Yunxian Shao
- Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China
| |
Collapse
|
18
|
Zhang Q, Hu J, Lee DJ. Microbial fuel cells as pollutant treatment units: Research updates. BIORESOURCE TECHNOLOGY 2016; 217:121-128. [PMID: 26906446 DOI: 10.1016/j.biortech.2016.02.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 01/30/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Microbial fuel cells (MFC) are a device that can convert chemical energy in influent substances to electricity via biological pathways. Based on the consent that MFC technology should be applied as a waste/wastewater treatment unit rather than a renewable energy source, this mini-review discussed recent R&D efforts on MFC technologies for pollutant treatments and highlighted the challenges and research and development needs. Owing to the low power density levels achievable by larger-scale MFC, the MFC should be used as a device other than energy source such as being a pollutant treatment unit.
Collapse
Affiliation(s)
- Quanguo Zhang
- Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Henan Province, Zhengzhou, China
| | - Jianjun Hu
- Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Henan Province, Zhengzhou, China
| | - Duu-Jong Lee
- Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Henan Province, Zhengzhou, China; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; R&D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan Christian University, Chungli 32023, Taiwan.
| |
Collapse
|
19
|
Wang Y, Hu J, Wang L, Shan D, Wang X, Zhang Y, Mao X, Xing L, Wang D. Acclimated sediment microbial fuel cells from a eutrophic lake for the in situ denitrification process. RSC Adv 2016. [DOI: 10.1039/c6ra16510a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sediment microbial fuel cells (SMFCs) with various external resistances were acclimated at the north of Lake Taihu for two months.
Collapse
Affiliation(s)
- Yuan Wang
- School of Resource and Environmental Sciences
- Wuhan University
- Wuhan 430079
- China
| | - Jiangjun Hu
- School of Resource and Environmental Sciences
- Wuhan University
- Wuhan 430079
- China
| | - Longmian Wang
- Nanjing Institute of Environmental Sciences
- Ministry of Environmental Protection
- Nanjing 210042
- China
| | - Dan Shan
- Sino-Japan Friendship Center for Environmental Protection
- Beijing 100029
- China
| | - Xu Wang
- School of Resource and Environmental Sciences
- Wuhan University
- Wuhan 430079
- China
| | - Yimin Zhang
- Nanjing Institute of Environmental Sciences
- Ministry of Environmental Protection
- Nanjing 210042
- China
| | - Xuhui Mao
- School of Resource and Environmental Sciences
- Wuhan University
- Wuhan 430079
- China
| | - Lei Xing
- Institute of Green Chemistry and Chemical Technology
- Jiangsu University
- Zhenjiang
- China
| | - Dihua Wang
- School of Resource and Environmental Sciences
- Wuhan University
- Wuhan 430079
- China
| |
Collapse
|