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Huang Y, Wang D, Jiang J, Gong J, Liu Y, Li L, Kong L, Ruan Y, Lv H, Chen Y, Chen Z, Liang Q, Chen D. Release and mobility characteristics of thallium from polluted farmland in varying fertilization: Role of cation exchange. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131928. [PMID: 37379595 DOI: 10.1016/j.jhazmat.2023.131928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/11/2023] [Accepted: 06/22/2023] [Indexed: 06/30/2023]
Abstract
Batch and column leaching tests were used to study thallium's release and migration behaviour and evaluate its potential toxicity risks in soil. The results indicated that leaching concentrations of Tl using TCLP and SWLP were much higher than the threshold, indicating a high risk of thallium pollution in the soil. Furthermore, the intermittent leaching rate of Tl by Ca2+ and HCl reached its maximum value, demonstrating the easy release of Tl. After HCl leaching, the form of Tl in the soil has changed, and ammonium sulfate has increased its extractability. Additionally, the extensive application of calcium promoted the release of Tl, increasing its potential ecological risk. Spectral analysis showed that Tl was mainly present in minerals such as Kaolinite and Jarosite, and exhibited significant adsorption capacity for Tl. HCl and Ca2+ damaged the crystal structure of the soil, greatly enhancing the migration and mobility of Tl in the environment. More importantly, XPS analysis confirmed that the release of Tl (I) in the soil was the leading cause of increased mobility and bioavailability. Therefore, the results revealed the risk of Tl release in the soil, providing theoretical guidance for its pollution prevention and control.
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Affiliation(s)
- Ying Huang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China
| | - Dexin Wang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Junhong Jiang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Jian Gong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yuxian Liu
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Long Li
- School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China
| | - Linjun Kong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yang Ruan
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Hang Lv
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yongheng Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Zibiao Chen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Qi Liang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China.
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Wu S, Liu Y, Shang L, Zhou W, Li Y, Sun J, Li J, Long H, Ning Z, Liu C. Recycling of phosphate tailings for an efficient hydroxyapatite-based adsorbent to immobilize heavy metal cations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27544-7. [PMID: 37166727 DOI: 10.1007/s11356-023-27544-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
Hydroxyapatite (HAP) is a promising adsorbent for immobilizing heavy metals in soil and water. However, the preparation and modification of HAP from pure chemicals increases its cost and limits its large-scale practical application. In this study, a hydroxyapatite-based adsorbent (HAPPT) was prepared from phosphate tailing produced in the phosphorus industry to sequester Pb, Cd and Zn from solution. The results showed that HAPPT was composed of HAP and MgO, with a surface area of 27.74 m2/g. The kinetics studies showed that most Pb and Cd were removed from the initial solution in 4 h and the adsorption of Zn increased with increasing contact time. Metals presented higher adsorption capacities at 35 °C than that at 25 °C. The adsorption isotherms showed that HAPPT presented high adsorption capacities for Pb, Cd and Zn in mono-metal solutions. The adsorption capacity of Cd at pH 6 was higher than that at pH 3, but the adsorption for Pb and Zn was similar at both pHs. HAPPT has selectivity for Pb in Pb-Cd-Zn multi-metals solution, and competitive adsorption reduced the adsorption quantity by 53%, 93% and 79% for Pb, Cd and Zn, respectively. The combined results of TEM-EDS, XRD and XPS showed that Pb was immobilized by forming phosphates due to the dissolution of HAP, whereas Cd and Zn were immobilized by forming hydroxide precipitates resulting from the function of MgO in HAPPT. The results of this study provided an efficient adsorbent for the removal of heavy metals in solution and provided a new perspective on the recycling of phosphate tailings in the phosphorus industry.
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Affiliation(s)
- Shanshan Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yizhang Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Lihai Shang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Wangwang Zhou
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Yuyang Li
- Department of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jing Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Jianqiu Li
- Guizhou Chanhen Chemical Corporation, Fuquan, 550599, China
| | - Hui Long
- Guizhou Chanhen Chemical Corporation, Fuquan, 550599, China
| | - Zengping Ning
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Chengshuai Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
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Jiang Q, He Y, Wu Y, Dian B, Zhang J, Li T, Jiang M. Solidification/stabilization of soil heavy metals by alkaline industrial wastes: A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:120094. [PMID: 36067972 DOI: 10.1016/j.envpol.2022.120094] [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: 07/26/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Solidification/stabilization technology is one of the most desirable technologies for the remediation of heavy metal contaminated soils due to its convenience and effectiveness. The annual production of alkaline industrial wastes in China is in the hundreds of millions of tons. Alkaline industrial wastes have the potential to replace conventional stabilizers because of their cost effectiveness and performance in stabilizing heavy metals in soils. This paper systematically summarizes the use of four alkaline industrial wastes (soda residue, steel slag, carbide slag, and red mud) for the solidification/stabilization of heavy metal contaminated soils and provides a comprehensive analysis of the three mechanisms of action (hydration, precipitation, and adsorption) and factors that influence the process. In addition, the environmental risks associated with the use of alkaline industrial wastes are highlighted. We found that soda residues, steel slag and carbide slag are appropriate for solidification/stabilization of Pb, Cd, Zn and Cu, while red mud is a potential passivation agent for the stabilization of As in soils. However, implementation of remediation methods using alkaline industrial wastes has been limited because the long-term effectiveness, synergistic effects, and usage in soils containing multiple heavy metals have not been thoroughly studied. This review provides the latest knowledge on the mechanisms, risks, and challenges of using alkaline industrial wastes for solidification/stabilization of heavy metal contaminated soils.
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Affiliation(s)
- Qi Jiang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Yongmei He
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Yonglin Wu
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Bo Dian
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Jilai Zhang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Tianguo Li
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Ming Jiang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China.
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Tan Y, Zhou X, Peng Y, Zheng Z, Gao X, Ma Y, Chen S, Cui S, Fan B, Chen Q. Effects of phosphorus-containing material application on soil cadmium bioavailability: a meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:42372-42383. [PMID: 35359209 DOI: 10.1007/s11356-022-19909-1] [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: 10/19/2021] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Diverse phosphorus-containing materials (PCMs) were widely applied in remediation of cadmium-contaminated soils, and their effects on the change of soil cadmium availability (SCA) varied with their physicochemical characteristics and environmental conditions. Investigation on the effect of various PCMs on reducing SCA under different conditions favors the safe utilization of Cd-contaminated soil. Herein, a meta-analysis of literature published before August 2021 was carried out. A total of 342 independent observations were obtained from 42 published papers which included 9 factors that may affect the passivation effect of fertilizer content: phosphorus type, phosphorus application rate, soil pH, soil CEC, soil organic matter, experiment type, and time. Results of boosted regression tree analysis showed that the application rate is the most important factor contributing to the SCA, followed by soil pH and duration. Results of this meta-analysis showed that medium P input shows potential for reactivating the SCA. Under alkaline soil conditions and high soil CEC values, PCM input can better deactivate SCA. In addition, the difference from the previous understanding is that under the medium input of phosphorus-containing fertilizer (90-500 mg P∙kg-1), it will significantly increase the content of available cadmium in soil. In addition, future recommendation for exploring novel PCMs and suitable strategies for controlling the SCA though PCM application were also proposed. Our works may promote the interpretation of the interference factors on the SCA changes and fill the research gaps on utilization of PCM in Cd-polluted soil remediation.
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Affiliation(s)
- Yi Tan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Xue Zhou
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Yutao Peng
- School of Agriculture, Sun Yat-Sen University, Shenzhen, 523758, Guangdong, China
| | - Zijing Zheng
- School of Agriculture, Sun Yat-Sen University, Shenzhen, 523758, Guangdong, China
| | - Xing Gao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing, 100012, China
| | - Yan Ma
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuo Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Shihao Cui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Beibei Fan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Qing Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
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