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Xie F, Zhao B, Ji L, Antwi P, Li Y, Yue X. Exploring the potential of a novel alternating current stimulated iron‑carbon anammox process: A new horizon for nitrogen removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168893. [PMID: 38016562 DOI: 10.1016/j.scitotenv.2023.168893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/11/2023] [Accepted: 11/24/2023] [Indexed: 11/30/2023]
Abstract
This study explored a novel alternating current (AC) stimulation approach to enhance the nitrogen removal efficiency of an iron‑carbon based anammox (FeC anammox) system. In the preliminary experiment, the TN removal efficiency of the AC stimulated system was 8.06 % higher than that of a DC simulated system in same current densities of 0.25 mA/cm2. Gene expression analysis revealed that the AC-stimulated system, where, compared with the anammox system alone, the expression of HZS, HDH, NarG, NirS, NorB and NosZ increased by 1.81, 2.50, 1.64, 0.23, 1.15 and 1.27 times, respectively. In the continuous experiment, the TN removal rate increased from 60.13 % to 84.34 % after AC stimulation, and the working time of the FeC materials increased to 20 days. An analysis of the mechanism revealed that the parallel connection between the capacitive reactance and filler resistance in AC might reduce the internal resistance of the system, thereby improving the actual current density received by local microorganisms, and achieving a better strengthening effect.
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Affiliation(s)
- Fei Xie
- Taiyuan University of Science and Technology, School of Environment and Resources, Taiyuan 030024, PR China
| | - Bowei Zhao
- Taiyuan University of Technology, College of Environmental Science and Engineering, Taiyuan 030024, PR China
| | - Li Ji
- Taiyuan University of Science and Technology, School of Environment and Resources, Taiyuan 030024, PR China
| | - Philip Antwi
- Environment Protection Authority, Center for Applied Sciences, Water Science Unit, Macleod, Victoria 3085, Australia
| | - Yuan Li
- Taiyuan University of Science and Technology, School of Environment and Resources, Taiyuan 030024, PR China
| | - Xiuping Yue
- Taiyuan University of Technology, College of Environmental Science and Engineering, Taiyuan 030024, PR China.
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Wang Z, Liu B, Ji C, Tang L, Huang B, Feng L, Feng Y. Insight into electrochemically boosted trace Co(II)-PMS catalytic process: Sustainable Co(IV)/Co(III)/Co(II) cycling and side reaction blocking. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130905. [PMID: 36738620 DOI: 10.1016/j.jhazmat.2023.130905] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/18/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
A novel homogeneous electrocatalytic system was constructed by current-assisted trace Co(II) activating PMS (ECP) to remove reactive blue 19 (RB19). More than 93 % of RB19 was rapidly removed with only a trace dose, and the PMS was 98.35 % utilized during the reaction. By exploring the active species and analyzing the PMS consumption, it was found that current strongly accelerated the Co(III)/Co(II) redox cycle by providing electrons to Co(III), and inhibited the side reaction thus improving the PMS utilization. Electric energy per order was very low, only 0.26 kWh·m3. Radicals (SO4•-) and non-radicals (Co(III), Co(IV) and 1O2) participated in ECP system, in which SO4•- was dominant. By excluding the other three precursors (PMS, •OH and O2•-), the side reaction product SO5•- was identified as the source of 1O2 in ECP system. Combining chelating agent EDTA and chemical probe PMSO, Co(IV) was considered formed by single and double charge transfer. Five degradation pathways of RB19 were proposed using mass spectrometry and DFT calculation. The ecotoxicity and mutagenicity of RB19 and its transformation products were predicted using software simulation. These studies provided an interesting insights into the synergistic Co(II)-PMS systems and offered a new strategy for electrochemical processes.
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Affiliation(s)
- Zizeng Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Bingzhi Liu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China.
| | - Changhao Ji
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Lei Tang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Baorong Huang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Li Feng
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Yong Feng
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
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Annamalai S, Muthukumar V, Alkhulaifi MM. A converged approach of electro-biological process for decolorization and degradation of toxic synthetic dyes. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 195:14. [PMID: 36271209 DOI: 10.1007/s10661-022-10583-x] [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: 09/01/2021] [Accepted: 11/20/2021] [Indexed: 06/16/2023]
Abstract
Being one of the leading industries worldwide, the textile industry has been consuming large quantities of groundwater and discharging huge volumes of dye-contaminated effluents into our aquatic environment. Augmentation of water sources via reuse of treated effluents is therefore highly necessary. In the present study, the decolorization and degradation of synthetic toxic dye from an aqueous solution were investigated through an electro-biological route. Initially, decolorization of synthetic dye solutions (100, 500, and 1000 mg L-1) was carried out by electrooxidation process using mixed metal oxide and titanium as anode and cathode, respectively. The electrooxidation solutions were further treated using bacteria (Pseudomonas aeruginosa) that were isolated from petroleum-transporting pipelines. UV-Vis, TOC, chemical oxygen demand, and NMR analyses revealed that the biodegradation process with electrooxidation enhanced the mineralization of the synthetic dye solutions. An optimum NaCl electrolyte concentration of 3 g L-1 was sufficient to produce reactive species viz., free chlorine and hypochlorite, which are responsible for the Reactive Blue 19 (RB-19) decolorization. Among the three RB-19 concentrations, the highest removal percentage was noticed at 100 mg L-1 (100%) with energy consumption and energy costs equal to 5.44 kWh m-3 and 0.65 USD m-3, respectively.
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Affiliation(s)
- Sivasankar Annamalai
- CSIR-Central Electrochemical Research Institute, Karaikudi, 630 003, India.
- School of Architecture, Civil, Environmental and Energy Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Venkatesan Muthukumar
- Department of Chemistry, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Manal M Alkhulaifi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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Ma X, Li M, Feng C, He Z. Electrochemical nitrate removal with simultaneous magnesium recovery from a mimicked RO brine assisted by in situ chloride ions. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:122085. [PMID: 31958611 DOI: 10.1016/j.jhazmat.2020.122085] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/12/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Electrochemical reduction is effective to remove nitrate but byproducts such as ammonia and nitrite would need chloride addition for indirect oxidation to nitrogen gas. Herein, electrochemical nitrate reduction was investigated to remove nitrate from a mimicked reverse osmosis (RO) brine containing chloride that eliminates the need for external chloride addition. Both Cu/Zn and Ti nano cathodes exhibited the best performance of nitrate removal with >97 % removal in either Na2SO4 or NaCl electrolyte, although with different products. Complete nitrate reduction to nitrogen gas was realized in the RO brine whose complex composition decreased the electrode efficiency, for example from 71.4 ± 0.2%-49.4 ± 0.3 % with the Cu/Zn cathode after 5 cycles of operation. Magnesium was recovered at the same time of nitrate removal and the purity of Mg(II) could reach 96.8 ± 2.0 % after proper pH pre-treatment. In a preliminary adsorption study, a key byproduct - chlorate was reduced by 49.8 ± 2.7 % after 3-h adsorption by 100 g L-1 activated carbon. These results have demonstrated the simultaneous electrochemical nitrate removal and resource recovery from a complex water like a RO brine and provided new information such as byproduct management and electrode deterioration.
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Affiliation(s)
- Xuejiao Ma
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China; Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, VA 24060, USA
| | - Miao Li
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Chuanping Feng
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China
| | - Zhen He
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, VA 24060, USA; Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA.
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Moghiseh Z, Rezaee A, Dehghani S. Minimization of hazardous sludge production using a bioelectrochemical system supplied by an alternating current electric field. Bioelectrochemistry 2020; 132:107446. [DOI: 10.1016/j.bioelechem.2019.107446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/10/2019] [Accepted: 12/15/2019] [Indexed: 01/06/2023]
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Hoseinzadeh E, Wei C, Farzadkia M, Rezaee A. Effects of Low Frequency-Low Voltage Alternating Electric Current on Apoptosis Progression in Bioelectrical Reactor Biofilm. Front Bioeng Biotechnol 2020; 8:2. [PMID: 32039189 PMCID: PMC6987302 DOI: 10.3389/fbioe.2020.00002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 01/03/2020] [Indexed: 12/19/2022] Open
Abstract
Bioelectrochemical systems have undergone several modifications to promote the enzymes or pathways used to reduce the energy required for microbial metabolism. Changes in dominant bacteria, population, and growth rates occur when an electric current is applied intermittently. Applying electricity to bioelectrical reactor (BER) biofilms can either stimulate cells or lead to cell death; therefore, determining the applied voltage range that leads to viable and stimulated bacteria is crucial. We investigated the progression of apoptosis induced by a low frequency-low voltage alternating electric current (AC) in a BER biofilm and found that biofilms on carbon cloth (CC) and stainless steel (SS) 304 electrodes had pHzpc values of 8.67. The pHzpc of the biofilms increased by two compared to that of the inoculant bacteria mass. Furthermore, the Henderson–Hasselbalch equation reveals that the compositions of cell walls of the biofilms that formed on the CC and SS304 electrodes are very similar. In contrast, the CC and SS304 biofilms differ from the inoculant biomass without the influence of an AC field; this indicates that there are differences in the compositions of the cell walls in the present bacteria. Fourier transform infrared spectroscopy was used to compare spectra of the biofilms with that of the inoculation mass, and there were differences in shape and absorbance intensity, indicating variability in the composition, and quantity of each individual biofilm component. In addition, the dehydrogenase activity (DHA) content varied under different applied voltages; the highest DHA was obtained at 8 Vpp. A flow cytometry analysis showed a relatively low number of apoptotic cells (10.93 ± 5.19%) for the AC amplitudes studied. Thus, a low voltage-low frequency AC likely induces significant changes in bacterial metabolic activity but causes no significant change in their viability.
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Affiliation(s)
- Edris Hoseinzadeh
- Department of Environmental Health Engineering, Social Determinants of Health Research Center, Saveh University of Medical Sciences, Saveh, Iran
| | - Chiang Wei
- The Experimental Forest, College of Bio-Resources and Agriculture, National Taiwan University, Taipei, Taiwan
| | - Mahdi Farzadkia
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Abbas Rezaee
- Department of Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Ghahrchi M, Rezaee A. Electro-catalytic ozonation for improving the biodegradability of mature landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 254:109811. [PMID: 31707195 DOI: 10.1016/j.jenvman.2019.109811] [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: 01/03/2019] [Revised: 10/09/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Landfill leachate contains complex, resistant, and diverse compounds that are considered as an environmental health problem. This study aims to investigate the efficacy of integrated homogeneous catalytic ozonation and electrochemical process for improving the biodegradability of landfill. This experimental study was conducted on real landfill leachate on the laboratory scale. The variables were current density (O3/H2O2-42.1 mA/cm2), ozone concentrations (100-400 mg/h), the initial pH (3-9), and the reaction times (1-6 h). The optimum operating condition was obtained at 1.42 mA/m2, 400 mg/h of ozone concentration, initial pH of 3, during 3 h. In the proposed integrated catalytic ozonation-electrochemical process, the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) concentrations were removed to 3381.9 and 1521.8 mg/L, respectively. Under the optimum condition, the biodegradability index increased from 0.27 to 0.45. The results showed that the electro-catalytic ozonation process has a significant effect on the biodegradability index and could improve the removal efficiency of landfill leachate treatments.
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Affiliation(s)
- Mina Ghahrchi
- Department of Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran; Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Abbas Rezaee
- Department of Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Moghiseh Z, Rezaee A, Dehghani S, Esrafili A. Microbial electrochemical system for the phenol degradation using alternating current: Metabolic pathway study. Bioelectrochemistry 2019; 130:107230. [DOI: 10.1016/j.bioelechem.2018.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/02/2018] [Accepted: 12/04/2018] [Indexed: 10/27/2022]
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Abdel-Aziz MH, Bassyouni M, Zoromba MS, Alshehri AA. Removal of Dyes from Waste Solutions by Anodic Oxidation on an Array of Horizontal Graphite Rods Anodes. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b05291] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohamed Helmy Abdel-Aziz
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - Mohamed Bassyouni
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, Port Said University, Port-Said, Egypt
| | - Mohamed Shafick Zoromba
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemistry Department, Faculty of Science, Port Said University, 42521 Port-Said, Egypt
| | - Abdullah Ali Alshehri
- Electrical Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
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Hoseinzadeh E, Rezaee A, Farzadkia M. Nitrate removal from pharmaceutical wastewater using microbial electrochemical system supplied through low frequency-low voltage alternating electric current. Bioelectrochemistry 2018; 120:49-56. [DOI: 10.1016/j.bioelechem.2017.11.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 11/19/2017] [Accepted: 11/19/2017] [Indexed: 12/18/2022]
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11
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Hoseinzadeh E, Rezaee A, Farzadkia M. Enhanced biological nitrate removal by alternating electric current bioelectrical reactor: Selectivity and mechanism. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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12
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Mahesh S, Garg KK, Srivastava VC, Mishra IM, Prasad B, Mall ID. Continuous electrocoagulation treatment of pulp and paper mill wastewater: operating cost and sludge study. RSC Adv 2016. [DOI: 10.1039/c5ra27486a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Schematic view of continuous electrocoagulation set up.
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Affiliation(s)
- S. Mahesh
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
- Department of Environmental Engineering
| | - Krishan Kishor Garg
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | | | - Indra Mani Mishra
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
- Department of Chemical Engineering
| | - Basheshwar Prasad
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Indra Deo Mall
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
- Department of Chemical Engineering
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Adibzadeh A, Rezaee A, Salehi Z. Enhancement of lipase activity for the oily wastewater treatment by an electrostimulation process. RSC Adv 2016. [DOI: 10.1039/c6ra24545e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The efficacy of electrostimulation on bacterial lipase activity and COD removal was studied using a laboratory bioelectrochemical system.
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Affiliation(s)
- A. Adibzadeh
- Department of Environmental Health Engineering
- Faculty of Medical Sciences
- Tarbiat Modares University
- Tehran
- Iran
| | - A. Rezaee
- Department of Environmental Health Engineering
- Faculty of Medical Sciences
- Tarbiat Modares University
- Tehran
- Iran
| | - Z. Salehi
- School of Chemical Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
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