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Yu Q, Zheng Y, Zhang P, Zeng L, Han R, Shi Y, Li D. Genetic programming-based predictive model for the Cr removal effect of in-situ electrokinetic remediation in contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132430. [PMID: 37659239 DOI: 10.1016/j.jhazmat.2023.132430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/14/2023] [Accepted: 08/27/2023] [Indexed: 09/04/2023]
Abstract
Soil electrokinetic remediation is an emerging and efficient in-situ remediation technology for reducing environmental risks. Promoting the dissolution and migration of Cr in soil under the electric field is crucial to decrease soil toxicity and ecological influences. However, it is difficult to establish strong relationships between soil treatment and impact factors and to quantify their contributions. Machine learning can help establish pollutant migration models, but it is challenging to derive predictive formulas to improve remediation efficiency, describe the predictive model construction process, and reflect the importance of the predictors for better regulation. Therefore, this paper established a predictive model for the electrokinetic remediation of Cr-contaminated soil using genetic programming (GP) after determining the characteristic parameters which influenced the remediation effect, described the model's adaptive optimization process through the algorithm's function, and identified the sensitivity factors affecting the Cr removal effect. Results showed that the Cr(VI) and total Cr concentrations predicted by GP were in satisfactory agreement with the experimental values, 92% of the training data and 90% of the validation data achieved errors within 1%, and could fully reflect the target ions' content variation in different soil layers. By substituting the above prediction formulas into Sobol sensitivity analysis, it was determined that conductivity, pH, current, and moisture content dramatically affected the Cr content variation in distinguished regions. For overall contaminated area, the system current and soil pH were the most sensitive factors for Cr(VI) and total Cr contents. Remediation efforts throughout the contaminated area should focus on the role of current versus soil pH. GP and sensitivity analysis can provide decision support and operational guidance for in-situ soil electrokinetic treatment by establishing a remediation effect prediction model, expediting the development and innovation of electrokinetic technology.
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Affiliation(s)
- Qiu Yu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Yi Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Pengpeng Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Linghao Zeng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Renhui Han
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Yaoming Shi
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
| | - Dongwei Li
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China.
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Bunditboondee C, Lohwacharin J, Khan E, Laohhasurayotin K. Performance of electrokinetic remediation system for mercury contaminated marine sediment: Roles of electrode spacing and electrode configuration. MARINE POLLUTION BULLETIN 2023; 194:115256. [PMID: 37478785 DOI: 10.1016/j.marpolbul.2023.115256] [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: 04/12/2023] [Revised: 06/21/2023] [Accepted: 07/02/2023] [Indexed: 07/23/2023]
Abstract
Understanding mercury (Hg) species existing after electrokinetic remediation (EK) for marine-sediment remediation is limited. Herein, the Hg fraction removal of EK from contaminated marine sediment was investigated appertaining to bipolar electrode settings along with the effects of electrode spacing and configuration considered. Based on the selective sequential Hg extractions (Hg SSE), much of the Hg in the sediment originated from F5 (i.e., HgS) and F4 (i.e., HgO). The F5 fraction removed by EK was about 30 %, while the F4 fraction had a slight increase of about 34 %. When it comes to electrode configuration, a hexagonal pattern has a higher Hg removal performance than that of a rectangular shape. The addition of anodes increases the remediation surface area, thus allowing superior Hg removal. This study indicates that the electrode spacing significantly affects the mercury removal and the remediation time. Determining suitable spacing enhances the electrical potentials in the migration flux.
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Affiliation(s)
| | - Jenyuk Lohwacharin
- Department of Environmental Engineering, Chulalongkorn University, Bangkok 10330, Thailand; Research Network of NANOTEC-CU (RNN) on Environment, Chulalongkorn University, Bangkok 10330, Thailand; Professor Aroon Sorathesn Center of Excellence in Environmental Engineering, Department of Environmental Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada, Las Vegas, NV 89154-4015, USA
| | - Kritapas Laohhasurayotin
- National Nanotechnology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
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3
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Wang X, Cui X, Fang C, Yu F, Zhi J, Mašek O, Yan B, Chen G, Dan Z. Agent-assisted electrokinetic treatment of sewage sludge: Heavy metal removal effectiveness and nutrient content characteristics. WATER RESEARCH 2022; 224:119016. [PMID: 36113240 DOI: 10.1016/j.watres.2022.119016] [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: 05/13/2022] [Revised: 07/31/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Sewage sludge (SS) is rich in nutrient elements such as phosphorus (P), nitrogen (N), and potassium (K), and therefore a candidate material for use in agriculture. But high content of heavy metals (HMs) can be a major obstacle to its further utilization. Therefore, an appropriate HM removal technology is required before its land application. In this study, an innovative biodegradable agent (citric acid, FeCl3, ammonium hydroxide, tetrasodium iminodisuccinate (IDS), and tea saponin) assisted electrokinetic treatment (EK) was performed to investigate the HM removal efficiency (RHMs) and nutrient transportation. Citric acid, IDS, and FeCl3-assisted EK showed a preferable average RHMs (Rave) reduction of 52.74-59.23%, with low energy consumption. After treatment, the content of Hg (0.51 mg kg-1), Ni (13.23 mg kg-1), and Pb (26.45 mg kg-1) elements met the criteria of national risk control standard, in all cases. Following the treatment, most HMs in SS had a reduced potential to be absorbed by plants or be leached into water systems. Risk assessment indicated that the Geoaccumulation index (Igeo) value of HMs has decreased by 0.28-2.40, and the risk of Pb (Igeo=-0.74) reduced to unpolluted potential. Meanwhile, no excessive nutrient loss in SS occurred as a result of the treatment, on the contrary, there was a slight increase in P content (18.17 mg g-1). These results indicate that agent-assisted EK treatment could be an environmentally-friendly method for RHMs and nutrient element recovery from SS, opening new opportunities for sustainable SS recycling and its inclusion into circular economy concepts.
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Affiliation(s)
- Xutong Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; UK Biochar Research Centre, School of Geosciences, University of Edinburgh, Crew Building, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK
| | - Xiaoqiang Cui
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Cheng Fang
- School of Science, Tibet University, Lhasa, Tibet Autonomous Region 850012, China
| | - Fan Yu
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Jun'ao Zhi
- School of Science, Tibet University, Lhasa, Tibet Autonomous Region 850012, China
| | - Ondřej Mašek
- UK Biochar Research Centre, School of Geosciences, University of Edinburgh, Crew Building, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK.
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China.
| | - Zeng Dan
- School of Science, Tibet University, Lhasa, Tibet Autonomous Region 850012, China
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Nugraha WC, Jeong H, Phan Dinh Q, Ishibashi Y, Arizono K. Combination of Vortex Agitation and Ultrasonic Irradiation for Mercury Removal from Sediment by Acid Extraction. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 108:1118-1123. [PMID: 35258636 DOI: 10.1007/s00128-022-03471-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
The removal of Hg from solid waste plays a key role in environmental protection. In this study, a fast, simple, and effective method for the removal of Hg by acid extraction, using a combination of vortex agitation and ultrasonic irradiation along with hydrobromic acid (HBr), was established using Hg-containing solid wastes. The optimal durations of vortex agitation and ultrasonic irradiation with 48% v/v of HBr were 5 and 6 min, respectively, and total Hg (T-Hg) extraction was achieved within 21 min. The proposed method was validated using the Certified Reference Material (CRM) ERM CC580 (estuarine sediment) and CRM NMIJ 7302-a (marine sediment). Under the optimized conditions, the efficiency rates of T-Hg extraction in both CRMs were 99.5% and 94.2%, with repeatabilities of 3.21% RSD and 2.31% RSD, respectively. The proposed extraction method can also be used for the remediation of Hg in other environmental matrices.
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Affiliation(s)
- Willy Cahya Nugraha
- Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, 862-8502, Kumamoto, Japan
- Research Unit for Clean Technology, National Research and Innovation Agency, Jalan cisitu sangkuriang, 40135, Bandung, Indonesia
| | - Huiho Jeong
- Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, 862-8502, Kumamoto, Japan
| | - Quang Phan Dinh
- Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, 862-8502, Kumamoto, Japan
| | - Yasuhiro Ishibashi
- Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, 862-8502, Kumamoto, Japan
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, 862-8502, Kumamoto, Japan.
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Ghobadi R, Altaee A, Zhou JL, Karbassiyazdi E, Ganbat N. Effective remediation of heavy metals in contaminated soil by electrokinetic technology incorporating reactive filter media. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 794:148668. [PMID: 34225154 DOI: 10.1016/j.scitotenv.2021.148668] [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: 03/31/2021] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
Soil contamination is increasingly a global problem with serious implications for human health. Among different soil decontamination approaches, electrokinetic (EK) remediation is a relatively new technology for treating organic and inorganic contaminants in soil. This research aims to develop an enhanced EK treatment method incorporating a compost-based reactive filter media (RFM) with the advantages of low-cost and strong affinity for heavy metals and test and improve the treatment efficiency for multiple heavy metals in natural soil. A series of EK operations were performed to investigate the performance of EK-RFM under different operating conditions such as the electric current and voltage, processing time, and the amount of RFM. The electric current and treatment time demonstrated a significant positive impact on removing Zn, Cd and Mn ions while changing the amount of RFM had an insignificant impact on the efficiency of heavy metals removal. Overall, 51.6%-72.1% removal of Zn, Cd, and Mn was achieved at 30.00 mA of electric current and 14 days of treatment duration. The energy consumption of the EK process was 0.17 kWh kg-1. The soil organic matter adversely affected the mobilization and migration of heavy metals such as Cu and Pb during EK treatment. The results are valuable in optimizing the design of the EK-RFM system, which will extend its application to field-scale soil decontamination practices.
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Affiliation(s)
- Romina Ghobadi
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - Ali Altaee
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - John L Zhou
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia.
| | - Elika Karbassiyazdi
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - Namuun Ganbat
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
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The Remediation Characteristics of Heavy Metals (Copper and Lead) on Applying Recycled Food Waste Ash and Electrokinetic Remediation Techniques. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Most food waste is incinerated and reclaimed in Korea. Due to the development of industry, soil and groundwater pollution are serious. The purpose of this study was to study recycled materials and eco-friendly remediation methods to prevent secondary pollution after remediation. In this study, recycled food waste ash was filled in a permeable reactive barrier (PRB) and used as a heavy metal adsorption material. In situ remediation electrokinetic techniques (EK) and acetic acid were used. Electrokinetic remediation is a technology that can remove various polluted soils and pollutants, and is an economical and highly useful remediation technique. Thereafter, the current density increased constantly over time, and it was confirmed that it increased after electrode exchange and then decreased. Based on this result, the acetic acid was constantly injected and it was reconfirmed through the water content after the end of the experiment. In the case of both heavy metals, the removal efficiency was good after 10 days of operation and 8 days after electrode exchange, but, in the case of lead, it was confirmed that experiments are needed by increasing the operation date before electrode exchange. It was confirmed that the copper removal rate was about 74% to 87%, and the lead removal rate was about 11% to 43%. After the end of the experiment, a low pH was confirmed at x/L = 0.9, and it was also confirmed that there was no precipitation of heavy metals and there was a smooth movement by the enhancer and electrolysis after electrode exchange.
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7
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Synergistic inhibition effect of novel counterion-coupled surfactant based on rice bran oil and halide ion on the C-steel corrosion in molar sulphuric acid: Experimental and computational approaches. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115797] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Arumugham T, K R, Hasan SW, Show PL, Rinklebe J, Banat F. Supercritical carbon dioxide extraction of plant phytochemicals for biological and environmental applications - A review. CHEMOSPHERE 2021; 271:129525. [PMID: 33445028 DOI: 10.1016/j.chemosphere.2020.129525] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/17/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Recently, supercritical fluid CO2 extraction (SFE) has emerged as a promising and pervasive technology over conventional extraction techniques for various applications, especially for bioactive compounds extraction and environmental pollutants removal. In this context, temperature and pressure regulate the solvent density and thereby effects the yield, selectivity, and biological/therapeutic properties of the extracted components. However, the nature of plant matrices primarily determines the extraction mechanism based on either density or vapor pressure. The present review aims to cover the recent research and developments of SFE technique in the extraction of bioactive plant phytochemicals with high antioxidant, antibacterial, antimalarial, and anti-inflammatory activities, influencing parameters, process conditions, the investigations for improving the yield and selectivity. In another portion of this review focuses on the ecotoxicology and toxic metal recovery applications. Nonpolar properties of Sc-CO2 create strong solvent strength via distinct intermolecular interaction forces with micro-pollutants and toxic metal complexes. This results in efficient removal of these contaminants and makes SFE technology as a superior alternative for conventional solvent-based treatment methods. Moreover, a compelling assessment on the therapeutic, functional, and solvent properties of SFE is rarely focused, and hence this review would add significant value to the SFE based research studies. Furthermore, we mention the limitations and potential of future perspectives related to SFE applications.
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Affiliation(s)
- Thanigaivelan Arumugham
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Rambabu K
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Shadi W Hasan
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Selangor Darul Ehsan, Malaysia.
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul, 05006, Republic of Korea.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
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Chen Y, Zhi D, Zhou Y, Huang A, Wu S, Yao B, Tang Y, Sun C. Electrokinetic techniques, their enhancement techniques and composite techniques with other processes for persistent organic pollutants remediation in soil: A review. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Tantawy AH, Soliman KA, Abd El-Lateef HM. Experimental and computational approaches of sustainable quaternary bisammonium fluorosurfactants for corrosion inhibition as protective films at mild steel/H2SO4 interface. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126141] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Tang J, Qiu Z, Tang H, Wang H, Sima W, Liang C, Liao Y, Li Z, Wan S, Dong J. Coupled with EDDS and approaching anode technique enhanced electrokinetic remediation removal heavy metal from sludge. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115975. [PMID: 33168374 DOI: 10.1016/j.envpol.2020.115975] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
In this work, the novel technology was used to remove heavy metal from sludge. The coupled with biodegradable ethylenediamine disuccinic acid (EDDS) and approaching anode electrokinetic (AA-EK) technique was used to enhance heavy metal removing from sludge. Electric current, sludge and electrolyte characteristics, heavy metal removal efficiency and residual content distribution, and heavy metal fractions percentage of variation were evaluated during the electrokinetic remediation process. Results demonstrated that the coupled with EDDS and AA-EK technique obtain a predominant heavy metal removal efficiency, and promote electric current increasing during the enhanced electrokinetic remediation process. The catholyte electrical conductivity was higher than the anolyte, and electrical conductivity of near the cathode sludge achieved a higher value than anode sludge during the coupled with EDDS and AA-EK remediation process. AA-EK technique can produce a great number of H+, which caused the sludge acidification and pH decrease. Cu, Zn, Cr, Pb, Ni and Mn obtain the highest extraction efficiency after the coupled with EDDS and AA-EK remediation, which were 52.2 ± 2.57%, 56.8 ± 3.62%, 60.4 ± 3.62%, 47.2 ± 2.35%, 53.0 ± 3.48%, 54.2 ± 3.43%, respectively. Also, heavy metal fractions analysis demonstrated that the oxidizable fraction percentage decreased slowly after the coupled with EDDS and AA-EK remediation.
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Affiliation(s)
- Jian Tang
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China.
| | - Zhongping Qiu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Hengjun Tang
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Haiyue Wang
- Students of Affairs Division, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Weiping Sima
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Chao Liang
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Yi Liao
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Zhihua Li
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Shan Wan
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
| | - Jianwei Dong
- School of Civil Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
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Ma J, Song X, Peng B, Zhao T, Luo J, Shi R, Zhao S, Liu H. Multiscale molecular dynamics simulation study of polyoxyethylated alcohols self-assembly in emulsion systems. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116252] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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Heavy metal removal effectiveness, flow direction and speciation variations in the sludge during the biosurfactant-enhanced electrokinetic remediation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116918] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Ping Q, Lu X, Li Y, Mannina G. Effect of complexing agents on phosphorus release from chemical-enhanced phosphorus removal sludge during anaerobic fermentation. BIORESOURCE TECHNOLOGY 2020; 301:122745. [PMID: 31954968 DOI: 10.1016/j.biortech.2020.122745] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/03/2020] [Accepted: 01/04/2020] [Indexed: 06/10/2023]
Abstract
Phosphorus (P) release from sludge containing phosphate precipitates (FePs or AlPs) as well as the anaerobic performance with the addition of complexing agents (citric, tartaric and EDTA) during ambient anaerobic fermentation process were investigated. Results showed that citrate addition was the most effective method to enhance P release from inorganic phosphate by chelation and promote volatile fatty acids (VFAs) production simultaneously during anaerobic fermentation. Equimolar citrate addition with chemical precipitates was the optimal dosage. Microbial analysis revealed that EDTA has the strongest inhibitory effect on microbial activity and community structure, while citrate was more effective in enhancing important acidifying microorganisms than tartrate and EDTA. Therefore, citrate addition can be regarded as an alternative and promising method to recover P and carbon source from sludge containing chemical precipitates. These important discoveries will help to enrich P recovery path from sludge produced in the chemical-enhanced P removal treatment processes.
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Affiliation(s)
- Qian Ping
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Xiao Lu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Yongmei Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Giorgio Mannina
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Engineering Department, Palermo University, Viale delle Scienze, ed. 8, 90128 Palermo, Italy
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Gong Y, Zhao D, Wang Q. An overview of field-scale studies on remediation of soil contaminated with heavy metals and metalloids: Technical progress over the last decade. WATER RESEARCH 2018; 147:440-460. [PMID: 30343201 DOI: 10.1016/j.watres.2018.10.024] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/05/2018] [Accepted: 10/06/2018] [Indexed: 06/08/2023]
Abstract
Soil contamination by heavy metals and metalloids has been a major concern to human health and environmental quality. While many remediation technologies have been tested at the bench scale, there have been only limited reports at the field scale. This paper aimed to provide a comprehensive overview on the field applications of various soil remediation technologies performed over the last decade or so. Under the general categories of physical, chemical, and biological approaches, ten remediation techniques were critically reviewed. The technical feasibility and economic effectiveness were evaluated, and the pros and cons were appraised. In addition, attention was placed to the environmental impacts of the remediation practices and long-term stability of the contaminants, which should be taken into account in the establishment of remediation goals and environmental criteria. Moreover, key knowledge gaps and practical challenges are identified.
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Affiliation(s)
- Yanyan Gong
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, China.
| | - Dongye Zhao
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL, 36849, United States; School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Qilin Wang
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW, 2007, Australia
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16
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Falciglia PP, Ingrao C, De Guidi G, Catalfo A, Finocchiaro G, Farina M, Liali M, Lorenzano G, Valastro G, Vagliasindi FGA. Environmental Life Cycle Assessment of marine sediment decontamination by citric acid enhanced-microwave heating. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:72-82. [PMID: 29145056 DOI: 10.1016/j.scitotenv.2017.11.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 06/07/2023]
Abstract
The potential ability of microwave heating (MWH) for the remediation of marine sediments affected by severe hydrocarbon (HC) contamination was investigated. Decontamination effectiveness and environmental sustainability through a comparative Life Cycle Assessment (LCA) were addressed. Main results revealed that the application of a 650-W MWH treatment resulted in a rapid (15min) HC removal. A citric acid (CA) dose of 0.1M led to enhanced-HC removals of 76.9, 96.5 and 99.7% after 5, 10 and 15min of MW irradiation, respectively. The increase in CA dose to 0.2M resulted in a shorter successful remediation time of 10min. The exponential kinetic model adopted showed a good correlation with the experimental data with R2 values in the 0.913-0.987 range. The nature of the MW treatment was shown to differently influence the HC fraction concentration after the irradiation process. Achieved HC removals in such a short remediation time are hardly possible by other clean-up techniques, making the studied treatment a potential excellent choice. Removal mechanisms, which allowed the enhanced-MWH to operate as a highly effective multi-step technique (pure thermal desorption+chemical washing), undoubtedly represent a key factor in the whole remediation process. The LCA highlighted that the MW technology is the most environmentally sustainable alternative for sediment decontamination applications, with a total damage, which was 75.74% lower than that associated with the EK (0.0503pt).
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Affiliation(s)
- Pietro P Falciglia
- Department of Civil Engineering and Architecture, - University of Catania, Via A. Doria, 6, - 95125 Catania, Italy; Laboratori Nazionali del Sud, - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia, 62, - 95125 Catania, Italy.
| | - Carlo Ingrao
- Faculty of Engineering and Architecture, Kore University of Enna, Cittadella Universitaria, 94100 Enna, Italy
| | - Guido De Guidi
- Department of Chemical Sciences, - University of Catania, Via A. Doria, 6, - 95125 Catania, Italy
| | - Alfio Catalfo
- Department of Chemical Sciences, - University of Catania, Via A. Doria, 6, - 95125 Catania, Italy
| | - Guglielmo Finocchiaro
- Department of Civil Engineering and Architecture, - University of Catania, Via A. Doria, 6, - 95125 Catania, Italy
| | - Marcello Farina
- Agenzia Regionale per la Protezione Ambientale (ARPA), Struttura territoriale di Siracusa, Via Bufardeci, 22, - 96100 Siracusa, Italy
| | - Maria Liali
- Agenzia Regionale per la Protezione Ambientale (ARPA), Struttura territoriale di Siracusa, Via Bufardeci, 22, - 96100 Siracusa, Italy
| | - Giuseppe Lorenzano
- Agenzia Regionale per la Protezione Ambientale (ARPA), Struttura territoriale di Siracusa, Via Bufardeci, 22, - 96100 Siracusa, Italy
| | - Gaetano Valastro
- Agenzia Regionale per la Protezione Ambientale (ARPA), Struttura territoriale di Siracusa, Via Bufardeci, 22, - 96100 Siracusa, Italy
| | - Federico G A Vagliasindi
- Department of Civil Engineering and Architecture, - University of Catania, Via A. Doria, 6, - 95125 Catania, Italy
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17
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Studying the corrosion inhibition of some prepared nonionic surfactants based on 3-(4-hydroxyphenyl) propanoic acid and estimating the influence of silver nanoparticles on the surface parameters. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.052] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Tian Y, Boulangé-Lecomte C, Benamar A, Giusti-Petrucciani N, Duflot A, Olivier S, Frederick C, Forget-Leray J, Portet-Koltalo F. Application of a crustacean bioassay to evaluate a multi-contaminated (metal, PAH, PCB) harbor sediment before and after electrokinetic remediation using eco-friendly enhancing agents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:944-953. [PMID: 28724226 DOI: 10.1016/j.scitotenv.2017.07.094] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/14/2017] [Accepted: 07/11/2017] [Indexed: 06/07/2023]
Abstract
Electrokinetic (EK) remediation can be a suitable technology for treating contaminated dredged harbor sediment, stored on terrestrial disposal sites. Citric acid (CA) and biosurfactants (rhamnolipids and saponin) were chosen as enhancing agents for simultaneous metal (Cd, Cr, Cu, Pb, Zn) and PAH/PCB removal by EK because of their potential low toxicity with a view to site restoration. Three EK runs were performed using a periodic voltage (1Vcm-1) and various concentrations of agents. The best combination of CA (0.2molL-1) and saponin (0.85gL-1) did not remove high amounts of metals (4.4-15.8%) and provided only slightly better results for PAH and PCB removal (29.2% and 38.2%, respectively). The harbor sediment was highly resistant to metal and organics mobilization and transport because of an aged contamination, a high buffering capacity, a very low hydraulic permeability and a high organic matter content. The efficiency of the EK process was also assessed by measuring the acute toxicity of the EK-treated sediment on E. affinis copepods exposed to sediment elutriates. Fortunately, the use of CA and biosurfactants did not significantly impact on sediment toxicity. Some treated sediment sections, particularly those near the anode compartment, were statistically more toxic than the raw sediment. More particularly, E. affinis copepods were significantly sensitive to low pH values and oxidative conditions, to Cu, and to a lesser extent to Pb amounts. The speciation of these metals probably changed in these pH and redox conditions so that they became more easily leachable and bioavailable. In contrast, toxicity was negatively correlated to PAH and PCB amounts after EK treatment, probably due to the production of oxidized metabolites of PAHs and PCBs.
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Affiliation(s)
- Y Tian
- Normandie University, ULHN, LOMC UMR CNRS 6294, FR CNRS 3730 SCALE, 53 rue de Prony, 76600 Le Havre, France; Normandie University, URN, COBRA UMR CNRS 6014, 55 rue Saint Germain, 27000 Evreux, France.
| | - C Boulangé-Lecomte
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France.
| | - A Benamar
- Normandie University, ULHN, LOMC UMR CNRS 6294, FR CNRS 3730 SCALE, 53 rue de Prony, 76600 Le Havre, France.
| | - N Giusti-Petrucciani
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France.
| | - A Duflot
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France.
| | - S Olivier
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France.
| | - C Frederick
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France
| | - J Forget-Leray
- Normandie University, ULHN, SEBIO UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063 Le Havre, France.
| | - F Portet-Koltalo
- Normandie University, URN, COBRA UMR CNRS 6014, 55 rue Saint Germain, 27000 Evreux, France.
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19
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Glycerol-enhanced microwave heating for ultra-rapid effective remediation of marine sediments highly contaminated with hydrocarbons. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.07.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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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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21
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Parker AJ, Joyce MJ, Boxall C. Remediation of 137Cs contaminated concrete using electrokinetic phenomena and ionic salt washes in nuclear energy contexts. JOURNAL OF HAZARDOUS MATERIALS 2017; 340:454-462. [PMID: 28755553 DOI: 10.1016/j.jhazmat.2017.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 06/10/2017] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
This work describes the first known the use of electrokinetic treatments and ionic salt washes to remediate concrete contaminated with 137Cs. A series of experiments were performed on concrete samples, contaminated with K+ and 137Cs, using a bespoke migration cell and an applied electric field (60V potential gradient and current limit of 35mA). Additionally, two samples were treated with an ionic salt wash (≤400molm-3 of KCl) alongside the electrokinetic treatment. The results show that the combined treatment produces removal efficiencies three times higher (>60%) than the electrokinetic treatment alone and that the decontamination efficiency appears to be proportional to the initial degree of contamination. Furthermore, the decontamination efficiencies are equivalent to previous electrokinetic studies that utilised hazardous chemical enhancement agents demonstrating the potential of the technique for use on nuclear licensed site. The results highlight the relationship between the initial contamination concentration within the concrete and achievable removal efficiency of electrokinetic treatment and other treatments. This information would be useful when selecting the most appropriate decontamination techniques for particular contamination scenarios.
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Affiliation(s)
- Andrew J Parker
- Department of Science, Natural Resources and Outdoor Studies, University of Cumbria, Bowerham Road LA1 3JD, United Kingdom.
| | - Malcolm J Joyce
- Department of Engineering, Lancaster University, Bailrigg LA1 4YR, United Kingdom
| | - Colin Boxall
- Department of Engineering, Lancaster University, Bailrigg LA1 4YR, United Kingdom
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