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Abou-Shady A, Ali ME, Ismail S, Abd-Elmottaleb O, Kotp YH, Osman MA, Hegab RH, Habib AA, Saudi AM, Eissa D, Yaseen R, Ibrahim GA, Yossif TM, El-Araby H, Selim EMM, Tag-Elden MA, Elwa AES, El-Harairy A. Comprehensive review of progress made in soil electrokinetic research during 1993–2020, Part I: process design modifications with brief summaries of main output. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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2
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Chen G, Han K, Liu C, Yan B. Quantitative research on heavy metal removal of flue gas desulfurization-derived wastewater sludge by electrokinetic treatment. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125561. [PMID: 34030412 DOI: 10.1016/j.jhazmat.2021.125561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/27/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
Flue gas desulfurization-derived wastewater sludge (FGD-WWS) has been produced increasingly in China and India etc., and its content of heavy metals (HMs) including Cd, Cr, Cu, Hg, Ni and Zn seriously exceeds the limits allowed. Developing the suitable disposal of FGD-WWS is therefore significantly important and necessary. The novel process of electrokinetic treatment combined with chemical pretreatment of HMs in FGD-WWS were proposed here to improve the removal efficiency. Results indicate that the effects of different pretreatment agents (citric acid (CA), ammonia, tetrasodium of N, N-bis (carboxymethyl) glutamic acid (GLDA), and rhamnolipid) on the ET of HMs were different. To investigate the mechanism of combined process, the transformation potential (TP), exchange potential (EP) and removal potential (RP) were calculated. Correlation analysis shows the correlation between TP and RP was higher than that between EP and RP, indicating that the removal efficiency is mainly affected by the fraction transformation of HMs. Electric field, pH and pretreatment agents are main factors causing fraction transformation and affecting TP. Focusing on fraction transformation is an efficient way to improve further the removal efficiency. The work is promisingly valuable for developing the technology of treating FGD-WWS.
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Affiliation(s)
- Guanyi Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; School of Mechanical Engineering, Tianjin University of Commerce, Lhasa 850012, China; School of Science, Tibet University, Lhasa 850012, China; Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy Utilization, Tianjin 300072, China
| | - Kexuan Han
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Caixia Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy Utilization, Tianjin 300072, China.
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Lab of Biomass/waste Utilization, Tianjin 300072, China; Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy Utilization, Tianjin 300072, China
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Zhao Y, Li H, Li B, Lai Y, Zang L, Tang X. Process design and validation of a new mixed eluent for leaching Cd, Cr, Pb, Cu, Ni, and Zn from heavy metal-polluted soil. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1269-1277. [PMID: 33624641 DOI: 10.1039/d0ay01978j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chemical leaching, an emerging technology for treating heavy metal-polluted soils, requires a design for reasonable and new eluent and an evaluation of its efficiency on the simultaneous removal of different elements. In this study, the leaching effect and biodegradability of chelating agents were compared, and ethylenediamine disuccinic acid (EDDS) was selected to combine with ferric chloride (FeCl3) for the design of a mixed eluent (EDDS + FeCl3). Through batch experiments, the influences of the eluent concentration and solution pH on leaching were revealed, and leaching efficiencies of EDDS, FeCl3, and EDDS + FeCl3 on six heavy metals Cd, Cr, Pb, Cu, Ni, and Zn in the soil were separately analyzed. Results indicated that EDDS + FeCl3 showed advantages over both EDDS and FeCl3 alone, and it presented an excellent effect, especially for simultaneously leaching multiple heavy metals from the soil. The highest leaching efficiencies for Cd, Cr, Pb, Cu, Ni, and Zn reached up to 71.36%, 21.29%, 31.14%, 30.25%, 34.05%, and 4.96%, respectively. According to different soil types and target elements, the concentration, pH condition, and mass ratio of EDDS + FeCl3 could be adjusted for soil remediation. Fourier transform infrared spectroscopy proved that the better leaching effect of EDDS + FeCl3 was attributed to changes in the number and strength of functional groups in the solution, which enhanced the chelating ability of the mixed eluent and heavy metal ions. Therefore, chemical leaching by EDDS + FeCl3 for the remediation of multiple heavy metal-contaminated soil is a potential feasible strategy.
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Affiliation(s)
- Yuyan Zhao
- College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China.
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Asadollahfardi G, Sarmadi MS, Rezaee M, Khodadadi-Darban A, Yazdani M, Paz-Garcia JM. Comparison of different extracting agents for the recovery of Pb and Zn through electrokinetic remediation of mine tailings. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111728. [PMID: 33310346 DOI: 10.1016/j.jenvman.2020.111728] [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: 04/28/2020] [Revised: 11/15/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
This study was conducted to investigate the feasibility of Electrokinetic Remediation to remove lead and zinc from real mine tailings, collected from the Lacan's lead and zinc Mineralized Flotation Processing Plant (Markazi province, Iran). High buffering capacity, high organic matter, and heavy metal contamination were the unique characteristics of this mine tailing. Electrokinetic remediation of the mine tailings was carried out in 11 separate experiments under constant voltage gradient of 2 V/cm for 9 days. Various enhancement techniques were tested, such as 1) electrolyte conditioning using chelating agents including ethylenediaminetetraacetic acid, citric acid, acetic acid, and hydrochloric acid; 2) increasing the concentration of the catholyte solution, and 3) adding chelating agents to the soil as a pre-treatment of the tailings and the electrolyte condoning simultaneously. The concentration of each electrolyte solution was selected based on the different extraction tests that resulted in the optimal or highest extraction percentage of lead and zinc. Electrolyte conditioning, in the case of using citric acid 1 M enhanced the removal of Pb and Zn dramatically. Catholyte conditioning, using citric acid 1 M, was the most effective enhancement technique for removing Zn (38.34%); also, the best removal efficiency of Pb (51.31%) was achieved using the same electrolyte solution in both electrode chambers. Increasing the acetic acid concentration was favorable for removal of both heavy metals. Compared to catholyte conditioning, pre-treatment coupled with catholyte conditioning could not improve the removal efficiency considerably.
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Affiliation(s)
| | - Mohammad Sina Sarmadi
- Faculty of Engineering, Department of Civil Engineering, Kharazmi University, Tehran, Iran.
| | - Milad Rezaee
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Canada.
| | - Ahmad Khodadadi-Darban
- Mineral Processing Group, Department of Mining Engineering, Tarbiat Modares University, Tehran, Iran.
| | - Mahdie Yazdani
- Faculty of Engineering, Department of Civil Engineering, Kharazmi University, Tehran, Iran.
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Beyrami H. Effect of different treatments on electrokinetic remediation of Zn, Pb and Cd from a contaminated calcareous soil. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Xiao J, Pang Z, Zhou S, Chu L, Rong L, Liu Y, Li J, Tian L. The mechanism of acid-washed zero-valent iron/activated carbon as permeable reactive barrier enhanced electrokinetic remediation of uranium-contaminated soil. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116667] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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7
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Rezaee M, Asadollahfardi G, Gomez-Lahoz C, Villen-Guzman M, Paz-Garcia JM. Modeling of electrokinetic remediation of Cd- and Pb-contaminated kaolinite. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:630-635. [PMID: 30579229 DOI: 10.1016/j.jhazmat.2018.12.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/28/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
A physiscochemical model is presented for the reactive-transport of chemical scpecies through a contaminated soil during an acid-enhanced electrokinetic remediation treatment. Numerical simulations in the specific case of the removal of cadmium and lead from spiked kaolinite, compared with experimental results from the literature. The reactive-transport based on the local chemical equilibrium assumption, including a surface complexation to model the adsorption of cations (metals and protons). Comparison of simulation results show different beavior of the target metals, as cadmium is mainly retaind by surface interaction while lead is retained by precipitation of a solid phase.
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Affiliation(s)
- Milad Rezaee
- Department of Civil Engineering, Kharazmi University, Tehran, Iran
| | | | - Cesar Gomez-Lahoz
- Department of Chemical Engineering, University of Malaga, Malaga, Spain
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Song Y, Sun T, Cang L, Wu S, Zhou D. Migration and transformation of Cu(II)-EDTA during electrodialysis accompanied by an electrochemical process with different compartment designs. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.162] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Electroremediation of sodium bentonite contaminated with phenanthrene and its modeling with a Nernst-Planck equation. J APPL ELECTROCHEM 2018. [DOI: 10.1007/s10800-018-1219-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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Efficient Removal of Lead from Washing Effluent of Lead-contaminated Soil with Garlic Peel. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-8019-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Villen-Guzman M, Gomez-Lahoz C, Garcia-Herruzo F, Vereda-Alonso C, Paz-Garcia JM, Rodriguez-Maroto JM. Specific Energy Requirements in Electrokinetic Remediation. Transp Porous Media 2017. [DOI: 10.1007/s11242-017-0965-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tang J, He J, Liu T, Xin X, Hu H. Removal of heavy metal from sludge by the combined application of a biodegradable biosurfactant and complexing agent in enhanced electrokinetic treatment. CHEMOSPHERE 2017; 189:599-608. [PMID: 28963977 DOI: 10.1016/j.chemosphere.2017.09.104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 05/26/2023]
Abstract
In this work, the heavy metal removal potentiality of an electrokinetic (EK) decontamination treatment enhanced by a biodegradable complexing agent Tetrasodium of N, N-bis (carboxymethyl) glutamic acid (GLDA) also in combination with a biodegradable biosurfactant (rhamnolipid) was investigated to decontaminate heavy metals from the sludge. The main results explored that the nature of sludge and their interactions with different improving agents significantly influenced the electrokinetic removal processes. A general increase of pH values from anode to cathode in the sludge-cell was observed due to the strong buffering capacity of carbonates. Compared with the deionized water, the use of GLDA as an electrolyte, Cu, Zn, Cr, Pb, Ni and Mn removal efficiencies were 53.2 ± 3.12%, 67.4 ± 3.45%, 59.2 ± 4.78%, 45.4 ± 4.15%, 72.8 ± 3.68% and 45.0 ± 4.85%, respectively, whereas a further improvement heavy metals removal efficiencies (Cu, Zn, Cr, Pb, Ni and Mn removal efficiencies were 64.8 ± 2.34%, 56.8 ± 4.12%, 49.4 ± 4.45%, 46.6 ± 2.35%, 60.4 ± 3.45% and 69.6 ± 3.54%, respectively) were achieved by repalcing rhamnolipid as the electrolyte. Significantly higher removal efficiencies (Cu, Zn, Cr, Pb, Ni and Mn removal efficiencies were 70.6 ± 3.41%, 82.2 ± 5.21%, 89.0 ± 3.34%, 60.0 ± 4.67%, 88.4 ± 4.43% and 70.0 ± 3.51%, respectively) were obtained by the simultaneous use of GLDA and rhamnolipid due to their synergic action in electrokinetic process.
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Affiliation(s)
- Jian Tang
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
| | - Junguo He
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Tiantian Liu
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xiaodong Xin
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
| | - Huizhi Hu
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
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Ding L, Lv W, Yao K, Li L, Wang M, Liu G. Remediation of Cd(II)-contaminated soil via humin-enhanced electrokinetic technology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3430-3436. [PMID: 27873110 DOI: 10.1007/s11356-016-8069-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Humin is the component of humic substances that is recalcitrant to extraction by either strong bases or strong acids, which contains a variety of functional groups that may combine with heavy metal ions. The present study employed humin as an adsorbent to investigate the efficacy of a remediation strategy under the effects of humin-enhanced electrokinetics. Because the cations gravitate toward cathode and anions are transferred to anode, humin was placed in close proximity to the cathode in the form of a package. The humin was taken out after the experiments to determine whether a target pollutant (cadmium) might be completely removed from soil. Acetic acid-sodium acetate was selected as the electrolyte for these experiments, which was circulated between the two electrode chambers via a peristaltic pump, in order to control the pH of the soil. The results indicated that when the remediation duration was extended to 240 h, the removal of acid extractable Cd(II) could be up to 43.86% efficiency, and the adsorption of the heavy metal within the humin was 86.15 mg/kg. Further, the recycling of the electrolyte exhibited a good control of the pH of the soil. When comparing the pH of the soil with the circulating electrolyte during remediation, in contrast to when it was not being recycled, the pH of the soil at the anode increased from 3.89 to 5.63, whereas the soil at the cathode decreased from 8.06 to 7.10. This indicated that the electrolyte recycling had the capacity to stabilize the pH of the soil.
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Affiliation(s)
- Ling Ding
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China
| | - Wenying Lv
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China.
| | - Kun Yao
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China
| | - Liming Li
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China
| | - Mengmeng Wang
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China
| | - Guoguang Liu
- School of Environmental Science and Engineering, and Institute of Environmental Health and Pollution Control, Guangzhou Higher Education Mega Center, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, People's Republic of China
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Kulkarni VV, Golder AK, Ghosh PK. Synthesis of a functionalized fibrous adsorbent of high uptake capacity: a study on Pb(ii) uptake and simple acidic site model development. RSC Adv 2016. [DOI: 10.1039/c5ra20497f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Development and exposure of acidic functional groups on lignocellulose biomaterials through destruction of lignin barrier by acid treatment.
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Affiliation(s)
| | - Animes Kumar Golder
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- India
| | - Pranab Kumar Ghosh
- Department of Civil Engineering
- Indian Institute of Technology Guwahati
- India
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