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Liu K, Liang J, Zhang N, Li G, Xue J, Zhao K, Li Y, Yu F. Global perspectives for biochar application in the remediation of heavy metal-contaminated soil: a bibliometric analysis over the past three decades. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1052-1066. [PMID: 36469579 DOI: 10.1080/15226514.2022.2128038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Herein, 7,308 relevant documents on biochar application for the remediation of heavy metal (HM)-contaminated soil (BARHMCS) from 1991 to 2020 were extracted from the Web of Science Core Collection and subjected to bibliometric and knowledge mapping analyses to provide a global perspective. The results showed that (1) the number of publications increased over time and could be divided into two subperiods, i.e., the slow growth period (SGP) and rapid growth period (RGP), according to whether the annual publication number was ≥300. (2) A total of 126 countries, 741 institutions, and 1,021 scholars have contributed to this field. (3) These studies are mainly published in Science of the Total Environment, Chemosphere, etc., and are mainly based on the categories of environmental science, soil science, and environmental engineering. (4) The top five keyword clusters for the SGP were biochar, biochar, sorption, charcoal, and HMs, and those for the RGP were adsorption, black carbon, nitrous oxide, cadmium, and pyrolysis. (5) The main knowledge domains and the most cited references during the SGP and RGP were discussed. (6) Future directions are related to biochar application for plant remediation, the mitigation of climate change through increased carbon sequestration, biochar modification, and biochar for HMs and multiple organic pollutants.
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Affiliation(s)
- Kehui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Jiayi Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Ningning Zhang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Guangluan Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Jieyi Xue
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Keyi Zhao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- The Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin, China
| | - Yi Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- College of Environment and Resource, Guangxi Normal University, Guilin, China
| | - Fangming Yu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- College of Environment and Resource, Guangxi Normal University, Guilin, China
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Yuan Z, Song Y, Li D, Huang B, Chen Y, Ge X, Zheng M, Liao Y, Xie Z. Effects of biochar application on the loss characteristics of Cd from acidic soil under simulated rainfall conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83969-83980. [PMID: 35776308 DOI: 10.1007/s11356-022-21623-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
Biochar is widely used for immobilizing heavy metals in soil as a kind of high-effective passivator. This research conducted incubation and simulated rainfall experiments to study the effects of biochar application on the loss characteristics of runoff and sediment, as well as the transportation of the Cd during the water erosion process. Two rainfall intensities (60 and 120 mm h-1) and five biochar application rates (0%, 1%, 3%, 5%, and 7%) were considered in the experiment. The result showed that slaking had a greater effect than mechanical stirring in aggregate breakdown of the soil, and the addition of biochar generally increased the sensitivity of the soil to wet stirring, while had no obvious influence on the resistance to slaking. The H2O and CaCl2 extractable Cd in soil significantly decreased with the increase of biochar application rate. The runoff yields decreased with the increase of biochar application rate at both the two rainfall intensities, while the eroded sediment generally decreased at the 120 mm h-1 rainfall intensity. The addition of biochar tended to increase the loss of the middle-sized (1-0.05 mm) aggregates at the 60 mm h-1 rainfall intensity, whereas reduced their loss at the 120 mm h-1 rainfall intensity. Biochar application could significantly reduce the concentration of Cd in the runoff and decreased the total loss amount of Cd (sediment+runoff) in most of the cases. Excessively high level (7%) of biochar application may aggravate soil erosion and result in more Cd loss.
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Affiliation(s)
- Zaijian Yuan
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China
| | - Yueyan Song
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Dingqiang Li
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China
| | - Bin Huang
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China.
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China.
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China.
| | - Yunhui Chen
- Jiangxi Provincial Meteorological Observatory, Nanchang, 330096, People's Republic of China
| | - Xiaojun Ge
- South China Normal University, School of Environment, Guangzhou, 510631, People's Republic of China
| | - Mingguo Zheng
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China
| | - Yishan Liao
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China
| | - Zhenyue Xie
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environment and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, People's Republic of China
- International Academy of Soil and Water Conservation, Meizhou, 514000, People's Republic of China
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Gao Z, Liu Y, Huang Q, Li B, Ma T, Qin X, Zhao L, Sun Y, Xu Y. Effects of sepiolite and biochar on the photosynthetic and antioxidant systems of pakchoi under Cd and atrazine stress. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:897-904. [PMID: 36263769 DOI: 10.1080/03601234.2022.2133922] [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] [Indexed: 06/16/2023]
Abstract
Sepiolite and biochar effectively immobilize Cd and atrazine in vegetable soils. This study further investigated the effects of sepiolite and biochar on the photosynthetic and antioxidative defence systems of pakchoi under Cd and atrazine stress. The results showed that after adding sepiolite and biochar to contaminated soil, the chlorophyll content was restored and the photosynthetic rate increased, whereas the soluble sugar content of pakchoi decreased. In the antioxidant system of the plants, the activities of peroxidase, ascorbate peroxidase, and superoxide dismutase decreased, while the activity of catalase increased. The content of malondialdehyde, glutathione, and O2·- increased, but the content of H2O2 decreased. In general, remediation materials reduced the bioavailability of Cd and atrazine, reduced the stress on pakchoi, and restored and improved the rate of photosynthesis and function of antioxidants.
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Affiliation(s)
- Zhixin Gao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
- College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Yetong Liu
- Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Qingqing Huang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Boyan Li
- Agro-Ecological Environment Monitoring and Agricultural Products Quality Inspection Center of Tianjin, Tianjin, China
| | - Tiantian Ma
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Xu Qin
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Lijie Zhao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Yuebing Sun
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Yingming Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
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Zhou F, Ye G, Gao Y, Wang H, Zhou S, Liu Y, Yan C. Cadmium adsorption by thermal-activated sepiolite: Application to in-situ remediation of artificially contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127104. [PMID: 34523482 DOI: 10.1016/j.jhazmat.2021.127104] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Soils contamination with Cd result in detriment to the environmental quality. In-situ immobilization methods by applying clay minerals have been gaining prominence. The effects on sepiolite of thermal activation at different temperatures (300-750 °C), for removing Cd from aqueous solutions were evaluated, in order to consider their further application for soil remediation. The influence of activation temperature was investigated using XRD, SEM, and N2 adsorption-desorption measurements. The S-600 exhibited the maximum adsorption capacity (21.28 mg/g), despite its lower SSA, and Langmuir model described the adsorption isotherms better than the Freundlich equation. TCLP was used to quantify the remediation effects of thermal-activated sepiolite on simulated soils artificially polluted with Cd. The results indicated that the mobility of Cd in soil was effectively reduced after treating with thermal-activated sepiolite and the use of S-600 was the most efficient, reducing the TCLP-Cd by approximately 73% compared with the control test. The main remediation mechanism was considered as the cation exchange of Cd by Mg at the edges of octahedral sheet. This study showed that thermal-activated sepiolite could be promising amendments for remediation of Cd-contaminated soil.
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Affiliation(s)
- Feng Zhou
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Guangyu Ye
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yuting Gao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hongquan Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Sen Zhou
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yi Liu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Chunjie Yan
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
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Chen M, Wang D, Xu X, Zhang Y, Gui X, Song B, Xu N. Biochar nanoparticles with different pyrolysis temperatures mediate cadmium transport in water-saturated soils: Effects of ionic strength and humic acid. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150668. [PMID: 34597543 DOI: 10.1016/j.scitotenv.2021.150668] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/28/2021] [Accepted: 09/25/2021] [Indexed: 06/13/2023]
Abstract
Biochar is advocated as an environment-friendly and cost-effective material for removing both heavy metals and organic contaminants in soil remediation. However, our understandings on the cotransport potential of contaminants with the nanoscale biochar downward along soil profiles (e.g., potential environmental risks towards groundwater) remain largely unknown. This study investigated the effects of wheat straw-derived biochar nanoparticles pyrolyzed at 350 °C and 500 °C (BNP350 and BNP500) on the transport of cadmium (Cd(II)) in water-saturated soil packed columns. Different ionic strengths (ISs) without/with humic acid (HA) were tested to mimic the scenarios during soil remediation. BNPs could act as a vehicle mediating Cd(II) transport in soils. At a low IS (1.0 mM KCl), compared to the limited transport of individual Cd(II), BNP500 enhanced (69 times) Cd(II) transport (Cd(II) mass recovery (M) = 7.59%) in soils, which was greater than that by BNP350 (54 times, M = 5.92%), likely due to the higher adsorption of Cd(II) onto BNP500. HA further increased the Cd(II) transport by BNPs (M = 8.40% for BNP350 and M = 11.95% for BNP500), which was mainly due to the increased mobility of BNPs carrying more absorbed Cd(II). In contrast, at a high IS (10 mM KCl), BNP500 dramatically inhibited the transport of Cd(II) (M = 12.9%), decreasing by about 61.6%, compared to the BNPs absence (M = 33.6%). This is because a large amount of BNP500-Cd(II) was retained in soils at a high IS. This inhibition effect of Cd(II) transport by BNPs was reinforced with the presence of HA. Our findings suggest that the pyrolysis temperature of biochar should be carefully considered when applying biochar for in-situ remediation of soils contaminated by heavy metals such as Cd(II) under various organic matter and IS conditions.
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Affiliation(s)
- Ming Chen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dengjun Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Xiaoyun Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Zhang
- Institute of Eco-Environment and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Xiangyang Gui
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bingqing Song
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nan Xu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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Ogura AP, Lima JZ, Marques JP, Massaro Sousa L, Rodrigues VGS, Espíndola ELG. A review of pesticides sorption in biochar from maize, rice, and wheat residues: Current status and challenges for soil application. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113753. [PMID: 34537561 DOI: 10.1016/j.jenvman.2021.113753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
The use of pesticides has been increasing in recent years for maintaining traditional agricultural practices. However, these chemicals are associated with several environmental impacts, demanding urgent remediation techniques. Biochar is a carbonaceous material produced by pyrolysis that has the potential for pesticide sorption and remediation. In this context, this interdisciplinary review systematically assessed the state of the knowledge of crop residues to produce biochar for pesticide sorption. We focused on maize, rice, and wheat residues since these are the three most-produced grains worldwide. Besides, we evaluated different biochar handling, storage, and soil dispersion techniques to ease its implementation in agriculture. In general, pyrolysis temperature influences biochar characteristics and its potential for pesticide sorption. Furthermore, biochar amended soils had greater pesticide sorption capacity, limiting potential leaching and runoff. Most studies showed that the feedstock and specific surface area influence the biochar sorption properties, among other factors. Also, biochar reduces pesticides' bioavailability, decreasing their toxicity to soil organisms and improving soil fertility and crop yields. Nonetheless, the retrieved papers assessed only 21 pesticides, mainly consisting of lab-scale batch experiments. Therefore, there is still a gap in studies evaluating biochar aging, its potential desorption, pesticide co-contaminations, the associated microbiological processes, and field applications. Determining flow properties for biochars of different sizes and pellets is vital for reliable handling equipment design, and performing techno-economic assessment under different farm contexts is encouraged. Ultimately, coupling biochar production with residue management could address this challenge on sustainable agricultural systems.
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Affiliation(s)
- Allan Pretti Ogura
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13560-970, Brazil.
| | - Jacqueline Zanin Lima
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13560-970, Brazil
| | - Jéssica Pelinsom Marques
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13560-970, Brazil
| | - Lucas Massaro Sousa
- Process Design and Modeling Division, IFP Energies Nouvelles, Rond-Point Échangeur de Solaize, 69360, Solaize, France
| | | | - Evaldo Luiz Gaeta Espíndola
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13560-970, Brazil
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Wang X, Liu Q. Spatial and Temporal Distribution Characteristics of Triazine Herbicides in Typical Agricultural Regions of Liaoning, China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:899-905. [PMID: 33216155 DOI: 10.1007/s00128-020-03049-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The aim of the current study was to track the composition, spatial and temporal distribution charactistics of triazine herbicides in arable soils and corns in typical agricultural regions of Liaoning Province, China. All samples were analyzed using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Twelve kinds of triazine herbicides were found including atrazine, simazine, prometryn, propazine, ametryn, metribuzin, simetryn, aziprotryne, cyanizine, atrazine-desethyl, atrazine-desisopropyl and atrazine-desethyl-desisopropyl in the soil samples, of which atrazine, simazine, prometryn, atrazine-desethyl and atrazine-desethyl-desisopropyl were proved to be the predominant species with a high incidence though relatively low contamination level. The maximum concentration of atrazine in the soils was 73.80 µg·kg-1. Five kinds of triazine herbicides were found in corns in the region including atrazine, simazine, prometryn, atrazine-desethyl and atrazine-desethyl-desisopropyl with the detection rate 96.4%, 17.8%, 14.3%, 60.7% and 46.4%, respectively. The maximum contaminant level of atrazine in corns was 12.52 µg·kg-1, which is lower than that regulated in the National Standard of the People's Republic of China (GB2763-2012).
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Affiliation(s)
- Xiaochun Wang
- College of Chemistry and Life Science, Anshan Normal University, Anshan, 114016, People's Republic of China.
| | - Qinglong Liu
- College of Environmental Science and Engineering, Nankai Univeresity, Tianjin, 300071, China
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Jun L, Wei H, Aili M, Juan N, Hongyan X, Jingsong H, Yunhua Z, Cuiying P. Effect of lychee biochar on the remediation of heavy metal-contaminated soil using sunflower: A field experiment. ENVIRONMENTAL RESEARCH 2020; 188:109886. [PMID: 32846652 DOI: 10.1016/j.envres.2020.109886] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/24/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal contamination of soils is a serious issue with various consequences in Hunan Province. Here, we aimed to determine the effect and action mechanisms of lychee biochar on the remediation of Pb, Cd, As, and Zn from soil using sunflower (Helianthus annuus). Different amounts of lychee biochar (2.5, 5, and 10%) were added to heavy metal-contaminated soil in the Shuikoushan mining area, Hunan Province. The effects of biochar on the biomass of sunflower plants, and the accumulation and distribution of Pb, Cd, As, and Zn in sunflower plants, and changes in Pb, Cd, As, and Zn concentrations in the rhizosphere soil were studied. The application of biochar stimulated the growth of the sunflower plants, with the maximum biomass recorded in the 5% biochar treatment; however, above this level, biochar inhibited plant growth. Pb, Cd, As, and Zn in sunflower plants were redistributed with biochar addition. The concentration of Pb, Cd, As, and Zn in the leaves and receptacles of sunflower plants increased with biochar application, but their concentration in the roots, stems, and seeds significantly decreased compared with the control. The total amount of accumulated Pb, Cd, and As in sunflower plants increased by 22.9-58.9%, 15.8-42.3%, and 67.9-110%, respectively, compared with that in the control. In the biochar treatments, the total amount of accumulated Zn in sunflowers decreased by 13.8-37.2%, compared with that in the control. The accumulated Pb, Cd, and As in sunflower plants have an antagonistic effect on Zn required by sunflowers. The sunflower plants significantly reduced the concentration of Pb, Cd, As, and Zn in contaminated soil (P < 0.05), which decreased by 12.4, 11.0, 4.35, and 8.17%, respectively, compared with that before planting sunflower. The addition of biochar in heavy metal-contaminated soil significantly enhanced the heavy metal-remediation effect of sunflower. Compared with the control (0% biochar), 10% biochar application decreased the Pb, Cd, As, and Zn concentrations in the rhizosphere of sunflower plants, by 40.6, 31.6, 35.4, and 30.8%, respectively. In conclusion, lychee biochar enhanced the remediation of heavy metals in contaminated soil.
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Affiliation(s)
- Liu Jun
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, Hunan, 421001, China; The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, Hunan, 421001, China.
| | - Huang Wei
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
| | - Mo Aili
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
| | - Ni Juan
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
| | - Xie Hongyan
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, Hunan, 421001, China; The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, Hunan, 421001, China
| | - Hu Jingsong
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, Hunan, 421001, China; The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, Hunan, 421001, China
| | - Zhu Yunhua
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, Hunan, 421001, China; The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, Hunan, 421001, China
| | - Peng Cuiying
- Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, Hunan, 421001, China; The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, Hunan, 421001, China; The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, Hunan, 421001, China
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Qin X, Liu Y, Huang Q, Zhao L, Xu Y. Effects of Sepiolite and Biochar on Enzyme Activity of Soil Contaminated by Cd and Atrazine. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 104:642-648. [PMID: 32221624 DOI: 10.1007/s00128-020-02833-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/20/2020] [Indexed: 05/27/2023]
Abstract
The effects of sepiolite and biochar on the enzymatic activities of the soil in Cd- and atrazine-contaminated soils were studied. During the growth of pakchoi, the activities of acid phosphatase, sucrase, acid protease, and cellulase decreased, catalase activity increased, and urease activity decreased first and then increased. At the first harvest, compared with that for the control group, the soil pH after treatment with remediation materials increased from 5.41 to 7.43; the activities of urease, acid protease, and catalase increased by 62.8%, 38.6%, and 86.1%, respectively. And the activities of sucrase and acid phosphatase decreased by 17.3% and 24.7%, respectively. At the second harvest, the activities of acid phosphatase, acid protease, and cellulase continued to increase, but those of sucrase and catalase decreased. The results showed that soil enzyme activity was closely related to the type and addition of remediation materials, as well as the type of the enzyme.
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Affiliation(s)
- Xu Qin
- Innovation Team of Remediation for Heavy MetalContaminated Farmland of Chinese Institute of Agricultural SciencesMinistry of Agriculture, Agro-Environmental Protection Institute, Tianjin, 300191, China
| | - Yetong Liu
- Tianjin Institute of Agricultural Quality Standard and Testing Technology, Tianjin, 300381, China
| | - Qingqing Huang
- Innovation Team of Remediation for Heavy MetalContaminated Farmland of Chinese Institute of Agricultural SciencesMinistry of Agriculture, Agro-Environmental Protection Institute, Tianjin, 300191, China
| | - Lijie Zhao
- Innovation Team of Remediation for Heavy MetalContaminated Farmland of Chinese Institute of Agricultural SciencesMinistry of Agriculture, Agro-Environmental Protection Institute, Tianjin, 300191, China
| | - Yingming Xu
- Innovation Team of Remediation for Heavy MetalContaminated Farmland of Chinese Institute of Agricultural SciencesMinistry of Agriculture, Agro-Environmental Protection Institute, Tianjin, 300191, China.
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Sun J, Ma XL, Wang W, Zhang J, Zhang H, Wang YJ, Feng J. The Adsorption Behavior of Atrazine in Common Soils in Northeast China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:316-322. [PMID: 31263938 DOI: 10.1007/s00128-019-02671-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 06/26/2019] [Indexed: 06/09/2023]
Abstract
The objective of this study was to evaluate the adsorption capacity of atrazine and the effects of different environmental conditions such as temperature, pH, Ca2+ and biochar on the adsorption characteristics of atrazine in different types of soil using the intermittent adsorption method. The kinetic experiment showed that the adsorption of atrazine in albic, black and saline-alkaline soils reached equilibrium within 24 h. In the thermodynamics experiment, the Freundlich model effectively described the adsorption characteristics of atrazine in all three types of soil, indicating that the adsorption process forms multi-molecular layers. Lower soil pH conditions were more favorable for the absorption of atrazine. The addition of appropriate concentrations of Ca2+ or biochar could promote the adsorption of atrazine by the soil. Biochar could promote the fixation of atrazine in soils.
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Affiliation(s)
- Jing Sun
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Xiu-Lan Ma
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China.
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Ministry of Agriculture/Tianjin Key, Laboratory of Agro-Environment and Safe-Product, Tianjin, 300011, China.
| | - Wen Wang
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Jing Zhang
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Hao Zhang
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Yu-Jun Wang
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Jun Feng
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
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