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Gu F, Zhang J, Shen Z, Li Y, Ji R, Li W, Zhang L, Han J, Xue J, Cheng H. A review for recent advances on soil washing remediation technologies. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:651-658. [PMID: 35908225 DOI: 10.1007/s00128-022-03584-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Contaminated soils have caused serious harm to human health and the ecological environment due to the high toxicity of organic and inorganic pollutants, which has attracted extensive attention in recent years. Because of its low cost, simple operation and high efficiency, soil washing technology is widely used to permanently remove various pollutants in contaminated soils and is considered to be the most promising remediation technology. This review summarized the recent developments in the field of soil washing technology and discusses the application of conventional washing agents, advanced emerging washing agents, the recycling of washing effluents and the combination of soil washing and other remediation technologies. Overall, the findings provide a comprehensive understanding of soil washing technology and suggest some potential improvements from a scientific and practical point of view.
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Affiliation(s)
- Fei Gu
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Environmental Remediation Co., Ltd, 100015, Beijing, PR China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China
| | - Jiapeng Zhang
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Environmental Remediation Co., Ltd, 100015, Beijing, PR China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China
| | - Ziqi Shen
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Environmental Remediation Co., Ltd, 100015, Beijing, PR China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China
| | - Yang Li
- Jiangsu Institute of Geological Survey, 210018, Nanjing, PR China
| | - Rongting Ji
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, 210042, Nanjing, PR China
| | - Wei Li
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China
| | - Longjiang Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, 210042, Nanjing, PR China
| | - Jiangang Han
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China
| | - Jianming Xue
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China
- New Zealand Forest Research Institute (Scion), 8440, Christchurch, New Zealand
| | - Hu Cheng
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, 210037, Nanjing, PR China.
- National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Environmental Remediation Co., Ltd, 100015, Beijing, PR China.
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem, 223100, Huaian, PR China.
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Gong H, Zhao L, Rui X, Hu J, Zhu N. A review of pristine and modified biochar immobilizing typical heavy metals in soil: Applications and challenges. JOURNAL OF HAZARDOUS MATERIALS 2022; 432:128668. [PMID: 35325861 DOI: 10.1016/j.jhazmat.2022.128668] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/01/2022] [Accepted: 03/08/2022] [Indexed: 05/28/2023]
Abstract
In recent years, the application of biochar in the remediation of heavy metals (HMs) contaminated soil has received tremendous attention globally. We reviewed the latest research on the immobilization of soil HMs by biochar almost in the last 5 years (until 2021). The methods, effects and mechanisms of biochar and modified biochar on the immobilization of typical HMs in soil have been systematically summarized. In general, the HMs contaminating the soil can be categorized into two groups, the oxy-anionic HMs (As and Cr) and the cationic HMs (Pb, Cd, etc.). Reduction and precipitation of oxy-anionic HMs by biochar/modified biochar are the dominant mechanism for reducing HMs toxicity. Pristine biochar can effectively immobilize cationic HMs. The commonly applied modification method is to add substances that can precipitate HMs to the biochar. In addition, we assessed the risks of biochar applications. For instance, biochar may cause the leaching of certain HMs; biochar aging; co-transportation of biochar nanoparticles with HMs. Future work should focus on the artificial/intelligent design of biochar to make it suitable for remediation of multiple HMs contaminated soil.
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Affiliation(s)
- Huabo Gong
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ling Zhao
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xuan Rui
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinwen Hu
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nanwen Zhu
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
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Behrouzinia S, Ahmadi H, Abbasi N, Javadi AA. Insights into enhanced electrokinetic remediation of copper-contaminated soil using a novel conductive membrane based on nanoparticles. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:1015-1032. [PMID: 34146210 DOI: 10.1007/s10653-021-01006-w] [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: 04/17/2020] [Accepted: 06/06/2021] [Indexed: 06/12/2023]
Abstract
Electrokinetic remediation is a process in which a direct electric current is applied across a section of contaminated soil to remove metals. To improve the electrokinetic remediation in this study, a conductive membrane was fabricated via in situ chemical polymerization employing pyrrole and copper oxide nanoparticles. The fabricated membrane was placed in an electric field as part of the electrode structure. A physical model was constructed and filled with copper-contaminated kaolinite in the concentration of 200 mg/kg. To control the pH, 0.1 M citric acid and 0.01 M potassium chloride were used as the electrolyte solutions. Experimental parameters such as voltage, current, pH, EC, drained flow, and copper concentration were measured. The results showed that the minimum surface resistivity of the fabricated membrane under a maximum pressure of 8.2 kPa was 2.55 kΩ/m2. The experimental results demonstrated that the use of citric acid as an electrolyte was more useful to desorb the copper due to the formation of the copper-citrate complex. When employing the fabricated membrane, the copper removal increased from 13% (in CT-2) to 63% (in GM-2), while the removal of copper using potassium chloride electrolyte increased from 42% (in CT-1) to 52% (in GM-1). The highest power consumption was obtained in experiments using citric acid. Due to the higher removal efficiency of copper in GM-2, the energy utilization efficiency (β) increased and reached 29.9 near β value of GM-1 with the lowest power consumption.
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Affiliation(s)
| | - Hojjat Ahmadi
- Department of Water Engineering, Urmia University, Urmia, Iran.
| | - Nader Abbasi
- Agricultural Engineering Research Institute, Agricultural Research, Education and Extension Organization, (AREEO), Karaj, Iran
| | - Akbar A Javadi
- Department of Engineering, College of Engineering, Mathematics and Physical Sciences, University of Exeter, North Park Road, Exeter, EX4 4QF, UK
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Liang Y, Wu QT, Lee CCC, Jiang C, Wei Z. Evaluation of manganese application after soil stabilization to effectively reduce cadmium in rice. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127296. [PMID: 34592593 DOI: 10.1016/j.jhazmat.2021.127296] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/31/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
In order to produce safe rice from cadmium (Cd) contaminated soils, a special pot experiment in the field was proposed to facilitate the study of multiple remediation measures. In the field experiments, four treatments were selected for the first half of the year: rice without soil treatment (R); rice with zeolite stabilization (RZ); oilseed rape phytoremediation (OR); and inter-cropping Sedum alfredii and maize phytoremediation (IC). As the early rice with zeolite stabilization still contained elevated Cd, manganese (Mn) fertilizer was added in the late rice with a special pot experiment in the field. Results showed that, in the first crops, the grains of maize and oilseed rape contained Cd below the food standard limit, while Cd in rice grain exceeded the limit of 0.2 mg/kg. The RZ treatment did not reduce Cd in rice but decreased significantly Mn in rice straw. In the late rice, Mn fertilizer additionally reduced Cd in rice grain to 0.12 mg/kg in combination with the RZ treatment. Mn accumulation in rice straw was enhanced by Mn fertilizer. These results indicate that the pot experiment in the field provides a useful tool to further evaluate effective treatment combinations to reduce Cd in rice.
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Affiliation(s)
- Yuanfang Liang
- Key Laboratory on Heavy Metals Pollution and Control of the Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Qi-Tang Wu
- Key Laboratory on Heavy Metals Pollution and Control of the Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Charles C C Lee
- School of Environmental and Life Sciences, University of Newcastle (Australia) Singapore, 6 Temasek Blvd, 038986 Singapore
| | - Cheng'ai Jiang
- Key Laboratory on Heavy Metals Pollution and Control of the Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Environmental and Life Sciences, University of Newcastle (Australia) Singapore, 6 Temasek Blvd, 038986 Singapore
| | - Zebin Wei
- Key Laboratory on Heavy Metals Pollution and Control of the Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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McDowell RW, Gray CW. Do soil cadmium concentrations decline after phosphate fertiliser application is stopped: A comparison of long-term pasture trials in New Zealand? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150047. [PMID: 34508931 DOI: 10.1016/j.scitotenv.2021.150047] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 05/22/2023]
Abstract
Decreasing soil cadmium (Cd) is one method of removing Cd from the food chain. Phosphorus (P) fertilisers are a major source of Cd inputs into soil. Stopping P fertiliser should theoretically decrease Cd inputs and soil Cd accumulation, but there are few field data to show if this occurs. We examined three long-term grazed pasture trials in New Zealand (Ballantrae, Winchmore and Whatawhata) where P fertiliser had been applied (from 10 to 100 kg P ha-1 yr-1) for up to six years and then stopped for 10 to 26 years. Stopping P fertiliser applications reduced soil Cd concentrations at Winchmore and Whatawhata where P had been applied at ≥34 kg P ha-1 yr-1. No reductions occurred below this rate nor at Ballantrae where only 10 years post P-application data were available. Decreases were ascribed to moderate rainfall (1630 mm at Whatawhata and 740 mm rainfall plus 770 mm irrigation at Winchmore) that enhanced Cd leaching and may have been aided at Winchmore by a decrease in soil pH over time (0.4 units). However, because stopping P fertiliser inputs may quickly impair pasture production, additional strategies may be required to decrease soil Cd quickly.
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Affiliation(s)
- R W McDowell
- AgResearch, Lincoln Science Centre, Private Bag 4749, Christchurch 8140, New Zealand; Faculty of Agriculture and Life Sciences, P O Box 84, Lincoln University, Lincoln 7647, Christchurch, New Zealand.
| | - C W Gray
- AgResearch, Lincoln Science Centre, Private Bag 4749, Christchurch 8140, New Zealand
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Yu YH, Su JF, Shih Y, Wang J, Wang PY, Huang CP. Hazardous wastes treatment technologies. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1833-1860. [PMID: 32866315 DOI: 10.1002/wer.1447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
A review of the literature published in 2019 on topics related to hazardous waste management in water, soils, sediments, and air. The review covered treatment technologies applying physical, chemical, and biological principles for the remediation of contaminated water, soils, sediments, and air. PRACTICAL POINTS: This report provides a review of technologies for the management of waters, wastewaters, air, sediments, and soils contaminated by various hazardous chemicals including inorganic (e.g., oxyanions, salts, and heavy metals), organic (e.g., halogenated, pharmaceuticals and personal care products, pesticides, and persistent organic chemicals) in three scientific areas of physical, chemical, and biological methods. Physical methods for the management of hazardous wastes including general adsorption, sand filtration, coagulation/flocculation, electrodialysis, electrokinetics, electro-sorption ( capacitive deionization, CDI), membrane (RO, NF, MF), photocatalysis, photoelectrochemical oxidation, sonochemical, non-thermal plasma, supercritical fluid, electrochemical oxidation, and electrochemical reduction processes were reviewed. Chemical methods including ozone-based, hydrogen peroxide-based, potassium permanganate processes, and Fenton and Fenton-like process were reviewed. Biological methods such as aerobic, anoxic, anaerobic, bioreactors, constructed wetlands, soil bioremediation and biofilter processes for the management of hazardous wastes, in mode of consortium and pure culture were reviewed. Case histories were reviewed in four areas including contaminated sediments, contaminated soils, mixed industrial solid wastes and radioactive wastes.
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Affiliation(s)
- Yu Han Yu
- Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware, USA
| | - Jenn Fang Su
- Department of Chemical and Materials Engineering, Tamkang University, New Taipei City, Taiwan
| | - Yujen Shih
- Graduate Institute of Environmental Essngineering, National Sun yat-sen University, Kaohsiung, Taiwan
| | - Jianmin Wang
- Department of Civil Architectural and Environmental Engineering, Missouri University of Science & Technology, Rolla, Missouri
| | - Po Yen Wang
- Department of Civil Engineering, Widener University, Chester, Pennsylvania, USA
| | - Chin Pao Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware, USA
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Zhou H, Xu J, Lv S, Liu Z, Liu W. Removal of cadmium in contaminated kaolin by new-style electrokinetic remediation using array electrodes coupled with permeable reactive barrier. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116544] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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