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Jiang X, Liu Z, Yan B, Zhao L, Chen T, Yang X. Effects of active silicon amendment on Pb(II)/Cd(II) adsorption: Performance evaluation and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135614. [PMID: 39186844 DOI: 10.1016/j.jhazmat.2024.135614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/06/2024] [Accepted: 08/20/2024] [Indexed: 08/28/2024]
Abstract
In this study, a high-Si (Si) adsorbent (APR@Sam) was prepared by acid leaching slag (APR) from lead-zinc (Pb-Zn) tailings based on high-temperature alkali melting technology. The synthesized Si-based materials were applied to aqueous solutions contaminated with Pb and cadmium (Cd) to investigate the crucial role of active Si in sequestering heavy metals. The adsorption capacities of APR@Sam and the Si-depleted material (APR@Sam-NSi) were studied under different pH and temperature conditions. The results showed that as the pH increased from 3 to 7, the adsorption capacity increased, the active Si content in the solution increased by 63 %, and the maximum pH of the solution after adsorption was 7.12. After the removal of active Si, the Pb (II) and Cd (II) adsorption capacities of APR@Sam decreased by 45 % and 11.96 %, respectively. OH- promoted the release of Si into the solution, enhancing the material's adsorption efficiency. The reaction mechanism is mainly attributed to surface complexation guided by Si-O and Si-O-Si bonds, metal cation exchange, and bidentate coordination. The results indicated that the Si component is critical for the removal of Pb (II) and Cd (II) by APR@Sam and provide valuable insights into resource recovery strategies from leaching residues.
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Affiliation(s)
- Xueqin Jiang
- Guangdong Engineering Technology Research Center of Low Carbon and Advanced Energy Materials, Guangdong Provincial Key Laboratory of Chip and Integration Technology, School of Semiconductor Science and Technology, South China Normal University, Foshan 528225, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangdong Engineering Technology Research Center for Source Control of Combined Pollution in Mining Areas, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Zhenyuan Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangdong Engineering Technology Research Center for Source Control of Combined Pollution in Mining Areas, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangdong Engineering Technology Research Center for Source Control of Combined Pollution in Mining Areas, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Lingzhi Zhao
- Guangdong Engineering Technology Research Center of Low Carbon and Advanced Energy Materials, Guangdong Provincial Key Laboratory of Chip and Integration Technology, School of Semiconductor Science and Technology, South China Normal University, Foshan 528225, China
| | - Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangdong Engineering Technology Research Center for Source Control of Combined Pollution in Mining Areas, School of Environment, South China Normal University, Guangzhou 510006, China.
| | - Xiaofan Yang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
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Majumdar A, Upadhyay MK, Giri B, Yadav P, Moulick D, Sarkar S, Thakur BK, Sahu K, Srivastava AK, Buck M, Tibbett M, Jaiswal MK, Roychowdhury T. Sustainable water management in rice cultivation reduces arsenic contamination, increases productivity, microbial molecular response, and profitability. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133610. [PMID: 38309156 DOI: 10.1016/j.jhazmat.2024.133610] [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: 11/08/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Arsenic (As) and silicon (Si) are two structurally competitive natural elements where Si minimises As accumulation in rice plants, and based on this two-year field trial, the study proposes adopting alternating wetting and drying (AWD) irrigation as a sustainable water management strategy allowing greater Si availability. This field-based project is the first report on AWD's impact on As-Si distribution in fluvio-alluvial soils of the entire Ganga valley (24 study sites, six divisions), seasonal variance (pre-monsoon and monsoon), rice plant anatomy and productivity, soil microbial diversity, microbial gene ontology profiling and associated metabolic pathways. Under AWD to flooded and pre-monsoon to monsoon cultivations, respectively, greater Si availability was achieved and As-bioavailability was reduced by 8.7 ± 0.01-9.2 ± 0.02% and 25.7 ± 0.09-26.1 ± 0.01%. In the pre-monsoon and monsoon seasons, the physiological betterment of rice plants led to the high rice grain yield under AWD improved by 8.4 ± 0.07% and 10.0 ± 0.07%, proving the economic profitability. Compared to waterlogging, AWD evidences as an optimal soil condition for supporting soil microbial communities in rice fields, allowing diverse metabolic activities, including As-resistance, and active expression of As-responsive genes and gene products. Greater expressions of gene ontological terms and complex biochemical networking related to As metabolism under AWD proved better cellular, genetic and environmental responsiveness in microbial communities. Finally, by implementing AWD, groundwater usage can be reduced, lowering the cost of pumping and field management and generating an economic profit for farmers. These combined assessments prove the acceptability of AWD for the establishment of multiple sustainable development goals (SDGs).
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Affiliation(s)
- Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India; Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India.
| | - Munish Kumar Upadhyay
- Centre for Environmental Science & Engineering, Department of Civil Engineering, Indian Institute of Technology Kanpur, 208016, India
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India
| | - Sukamal Sarkar
- School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata 700103, India
| | - Barun Kumar Thakur
- Department of Economics, FLAME University, Pune, Maharashtra 412115, India
| | - Kashinath Sahu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra 400085, India
| | - Martin Buck
- Department of Life Science, Faculty of Natural Sciences, Imperial College, London SW7 2AZ, UK
| | - Mark Tibbett
- Department of Sustainable Land Management and Soil Research Centre, School of Agriculture Policy and Development, University of Reading, Reading RG6 6AR, UK
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
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Li H, Rao Z, Sun G, Wang M, Yang Y, Zhang J, Li H, Pan M, Wang JJ, Chen XW. Root chemistry and microbe interactions contribute to metal(loid) tolerance of an aromatic plant - Vetiver grass. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132648. [PMID: 37783142 DOI: 10.1016/j.jhazmat.2023.132648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/03/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Aromatic plants, such as vetiver grass (Chrysopogon zizanioides), possess strong abilities to resist environmental stresses. However, whether such abilities stem from the interaction between specific chemical characteristics and the associated microbes in roots and rhizosphere remains unclear. We conducted pot experiments to analyze stress-tolerant parameters, organic compounds, and bacterial communities in roots and rhizosphere of vetiver under typical metal(loid) stress [cadmium (Cd), arsenic (As), or Cd + As] over time. The results showed that the vetiver displayed limited toxic symptoms in terms of oxidative stress-antioxidant balance and chlorophyll content. The root low-molecular-weight organic acids (LMWOAs), fatty acids, and sterols were highly sensitive to growth stage (increased from the 4-month to the 8-month stage), and less sensitive to metal(loid) stress. The sugar contents in the rhizosphere soils also notably increased over time. Such endo and rhizosphere chemical changes strongly correlated with and enriched the functional bacteria including Streptomyces, which can resist stress and promote plant growth. The compound-bacteria interaction highly depended on growth stage. Vetiver demonstrated a progressive adaptation to stresses through metabolite modulation and cellular defense reinforcement. Our study evidenced that vetiver shapes the interaction between organic compounds and bacterial community in the root-soil interface and provides notable stress-resistant functions.
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Affiliation(s)
- Huishan Li
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zuomin Rao
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Guodong Sun
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Mengke Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuanxi Yang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Junwen Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hui Li
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Min Pan
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Hong Kong, China
| | - Jun-Jian Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Xun Wen Chen
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Liu J, Sun S, Zhang H, Kong Q, Li Q, Yao X. Remediation materials for the immobilization of hexavalent chromium in contaminated soil: Preparation, applications, and mechanisms. ENVIRONMENTAL RESEARCH 2023; 237:116918. [PMID: 37611786 DOI: 10.1016/j.envres.2023.116918] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/01/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023]
Abstract
Hexavalent chromium is a toxic metal that can induce severe chromium contamination of soil, posing a potential risk to human health and ecosystems. In recent years, the immobilization of Cr(VI) using remediation materials including inorganic materials, organic materials, microbial agents, and composites has exhibited great potential in remediating Cr(VI)-contaminated soil owing to the environmental-friendliness, short period, simple operation, low cost, applicability on an industrial scale, and high efficiency of these materials. Therefore, a systematical summary of the current progress on various remediation materials is essential. This work introduces the production (sources) of remediation materials and examines their characteristics in detail. Additionally, a critical summary of recent research on the utilization of remediation materials for the stabilization of Cr(VI) in the soil is provided, together with an evaluation of their remediation efficiencies toward Cr(VI). The influences of remediation material applications on soil physicochemical properties, microbial community structure, and plant growth are summarized. The immobilization mechanisms of remediation materials toward Cr(VI) in the soil are illuminated. Importantly, this study evaluates the feasibility of each remediation material application for Cr(VI) remediation. The latest knowledge on the development of remediation materials for the immobilization of Cr(VI) in the soil is also presented. Overall, this review will provide a reference for the development of remediation materials and their application in remediating Cr(VI)-contaminated soil.
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Affiliation(s)
- Jiwei Liu
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, 250014, China.
| | - Shuyu Sun
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Huanxin Zhang
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Qiang Kong
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, 250014, China; Dongying Institute, Shandong Normal University, Dongying, Shandong, 257092, China
| | - Qian Li
- School of Modern Agriculture and Environment, Weifang Institute of Technology, Weifang, Shandong, 261000, China
| | - Xudong Yao
- Project Department, Shandong Luqiao Detection Technology Co., Ltd., Rizhao, Shandong, 276800, China
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Chen T, Duan L, Cheng S, Jiang S, Yan B. The preparation of paddy soil amendment using granite and marble waste: Performance and mechanisms. J Environ Sci (China) 2023; 127:564-576. [PMID: 36522086 DOI: 10.1016/j.jes.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 06/17/2023]
Abstract
The wastes generated from the mining and processing of granite and marble stone are generally regarded as useless. However, these waste materials were used as the soil amendments for the first time. The functional groups, crystalline structure and micro-morphology of granite and marble wastes amendments (GMWA) were different from the original wastes demonstrated by X-ray diffractometer (XRD), Fourier transform infrared spectrometer (FT-IR) and Scanning electron microscope-energy dispersive spectrometer (SEM-EDS) analyses. With the addition of the amendments, the cation exchange capacity, electrical conductivity and nutrient availability of the soil increased, and the extractable heavy metals of the soil reduced significantly. Under the condition of the addition of 3% amendments, 7.0%, 99.9%, 99.7% and 70.5% of Cu, Pb, Zn and Cd in exchangeable fractions in soil were transformed to the more stable Fe-Mn oxides- or carbonates-bounded fractions. Tessier method and correlation analysis showed that the reduction of extractable metals in the acidic paddy soil can be attributed to the adsorption of available SiO2, the co-precipitation induced by the elevated pH value, the complexation induced by Fe-Mn oxides and the cation exchange induced by mineral nutrients. This study provides a new strategy for resource recovery of waste stones and remediation of heavy metal-contaminated soil.
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Affiliation(s)
- Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
| | - Lianxin Duan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Sheng Cheng
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Shaojun Jiang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
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6
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Wang P, Kong X, Ma L, Wang S, Zhang W, Song L, Li H, Wang Y, Han Z. Metal(loid)s removal by zeolite-supported iron particles from mine contaminated groundwater: Performance and mechanistic insights. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 313:120155. [PMID: 36130632 DOI: 10.1016/j.envpol.2022.120155] [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: 06/09/2022] [Revised: 09/02/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Iron-based materials have been widely investigated because of their high surface reactivity, which has shown potential for the remediation of metal(loid)s in groundwater. However, the disadvantages of structural stability and economic feasibility always limit their application in permeable reactive barrier (PRB) technology. In this study, zeolite-supported iron particles (Zeo-Fe) were synthesized by an innovative low-cost physical preparation method that is suitable for mass production. The removal efficiency and mechanism of typical metal(loid)s (Pb2+, Cd2+, Cr6+ and As3+) were subsequently investigated using various kinetic and equilibrium models and characterization methods. The results of scanning electron microscopy and energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) confirmed that zero valent iron (Fe0) and oxidation product (Fe3O4) were successfully loaded and efficiently dispersed on zeolite. The synthesized Zeo-Fe exhibited excellent adsorption and redox capacities for the cations Pb2+, Cd2+ and anions Cr6+, As3+. The increase in the pH resulting from Fe0 corrosion also enhanced the precipitation of Fe-metal(loid)s. The maximum removal capacity for Pb2+, Cd2+, Cr6+ and As3+ was up to 70.00, 9.12, 2.35 and 0.36 mg/g, respectively. The removal processes were well described by the pseudo-second-order kinetic model for Pb2+ and Cd2+, Lagergren pseudo first-order kinetics model for As3+ and double phase first order kinetics model l for Cr6+. Cr6+ was rapidly reduced to Cr3+ by the Fe0 stabilized on Zeo-Fe, and the oxidation of As3+ to As5+ was attributed to the Fe0/Fe2+ oxidation process at the interface over time, which was further demonstrated by the mineral phase and element valence analyses of reacted Zeo-Fe. The removal mechanism for metal(loid)s was a combination of physical and chemical processes, including adsorption, co-precipitation and reduction-oxidation. Conclusively, Zeo-Fe has been shown to have potential as an effective and economical material for removing various metal(loid)s used in PRB.
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Affiliation(s)
- Ping Wang
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361021, China.
| | - Xiangke Kong
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Lisha Ma
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Shizhong Wang
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Wei Zhang
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Le Song
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Hui Li
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Yanyan Wang
- Institute of Hydrogeology & Environmental Geology, CAGS, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, 050061, China.
| | - Zhantao Han
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, China.
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Zhao H, Zhang J, Wu F, Huang X, Liu F, Wang L, Zhao X, Hu X, Gao P, Tang B, Ji P. A 3-year field study on lead immobilisation in paddy soil by a novel active silicate amendment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118325. [PMID: 34634408 DOI: 10.1016/j.envpol.2021.118325] [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: 06/11/2021] [Revised: 09/03/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Lead (Pb) is a toxic metal in industrial production, which can seriously threat to human health and food safety. Thus, it is particularly crucial to reduce the content of Pb in the environment. In this study, raw fly ash (FA) was used to synthesise a new active silicate materials (IM) employing the low-temperature-assisted alkali (NaOH) roasting approach. The IM was further synthesised to form zeolite-A (ZA) using the hydrothermal method. The physicochemical characteristics of IM and ZA amendments before and after Pb2+ adsorption were analysed using the Scanning electron microscope-Energy Dispersive Spectrometer (SEM-EDS), Fourier Transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) apparatuses. The results revealed the considerably change in the microstructure and functional groups of IM and ZA amendments, conducive to Pb2+ removal. Moreover, a 3-year field experiment revealed that the IM and ZA significantly improved the growth of rice and reduced available Pb by 21%-26.8% and 9.7%-16.9%, respectively. After 3 years of remediation, the Pb concentration of the rice grain reached the national edible standard (≤0.2 mg kg-1) of 0.171 mg kg-1 and 0.179 mg kg-1, respectively. Meanwhile, the concentration of acid-exchangeable Pb reduced, while those of reducible and residual fractions of Pb increased. There was no significant difference between the IM and ZA treatments. The potential mechanisms of remediation by the amendments were ion-exchange, complexation, precipitation, and electrostatic attraction. Overall, the results indicate that IM is suitable for the remediation of contaminated soil and promotes safe food production, and develops an environmentally friendly and cost-effective amendment for the remediation of polluted soil.
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Affiliation(s)
- Hanghang Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; Key Laboratory of Original Agro-environmental Pollution Prevention and Control, Ministry of Agriculture/Tianjin Key Laboratory of Agro-environment and Safe-product, Tianjin, 300191, China
| | - Jianxin Zhang
- Northwest Bureau of China Metallurgical Geology Bureau, Xi'an, Shaanxi, 710119, China
| | - Feng Wu
- Northwest Bureau of China Metallurgical Geology Bureau, Xi'an, Shaanxi, 710119, China
| | - Xunrong Huang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Fuhao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Lu Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Xin Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Xiongfei Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Pengcheng Gao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Bo Tang
- Shaanxi University of Technology, Hanzhong, Shaanxi, 723001, China; Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Hanzhong, 723000, China
| | - Puhui Ji
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
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8
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Jiang Y, Jiang S, Huang R, Wang M, Cao H, Li Z. Phytoremediation potential of forage mulberry ( Morus atropurpurea Roxb.) for cadmium contaminated paddy soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:518-524. [PMID: 34328035 DOI: 10.1080/15226514.2021.1957768] [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] [Indexed: 06/13/2023]
Abstract
Mulberry is an important material to utilize the Cd polluted farmland in China and planting forage mulberry is a new development direction. This study aimed to investigate the changes of annual biomass and Cd content in shoot of Guisangyou 62, Guisangyou 12 and Yuesang 11 in field XT-C1, XT-X1 and ZZ-M1 under the pressure of Cd in 3 years. The Cd extraction ability of forage mulberry was analyzed, and the safety of forage mulberry was also discussed. The results showed that the annual biomass of each forage mulberry shoot could reach 64.52 ∼ 86.61 t/hectare (ha). The total harvest biomass of Guisangyou 12 was the highest, followed by Guisangyou 62 and Yuesang 11. In the same test area, for different forage mulberry varieties, there were no significant differences in Cd content in the shoot at each sampling time, and the Cd concentrations in shoot were in the range of 0.05 ∼ 0.66 mg/kg, meeting the hygienical standard for feeds (GB 13078-2017, China). Without considering the test area, the average Cd removal amount of each forage mulberry in a year was about 18.52 g/ha. Planting forage mulberry may become a new ecological economic model to achieve the safe utilization of Cd polluted farmland.Novelty statement Mulberry is one of the most important plants for safe utilization the Cd polluted farmland in China and planting mulberry as animal feed is a new development direction. This study investigated the effects of Cd on the shoot biomass of 3 forage mulberry varieties at 3 experimental areas in 3 years. It also examined how much Cd could be removed from soil by harvesting forage mulberry for 4 times a year. The Cd content in the shoot of forage mulberry and its safety were also evaluated.
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Affiliation(s)
- Yongbing Jiang
- The Sericultural Research Institute of Hunan Province, Changsha, China
| | - Shimeng Jiang
- The Sericultural Research Institute of Hunan Province, Changsha, China
| | - Renzhi Huang
- The Sericultural Research Institute of Hunan Province, Changsha, China
| | - Ming Wang
- The Sericultural Research Institute of Hunan Province, Changsha, China
| | - Hui Cao
- The Sericultural Research Institute of Hunan Province, Changsha, China
| | - Zhangbao Li
- The Sericultural Research Institute of Hunan Province, Changsha, China
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9
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Radziemska M, Gusiatin ZM, Cydzik-Kwiatkowska A, Cerdà A, Pecina V, Bęś A, Datta R, Majewski G, Mazur Z, Dzięcioł J, Danish S, Brtnický M. Insight into metal immobilization and microbial community structure in soil from a steel disposal dump phytostabilized with composted, pyrolyzed or gasified wastes. CHEMOSPHERE 2021; 272:129576. [PMID: 33482516 DOI: 10.1016/j.chemosphere.2021.129576] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/23/2020] [Accepted: 01/03/2021] [Indexed: 05/27/2023]
Abstract
The soil system is a key component of the environment that can serve as a sink of pollutants. Using processed waste for aided phytostabilization of metals (HMs) in contaminated soils is an attractive phytoremediation technique that integrates waste utilization and recycling. In this study, we evaluated the effect of biologically and thermally processed wastes, i.e. sewage sludge compost (CSS), poultry feather ash (AGF) and willow chip biochar (BWC), on phytostabilization of contaminated soil from a steel disposal dump. Greenhouse experiments with Lupinus luteus L. and amendments (dosage: 3.0%, w/w) were conducted for 58 days. Soil toxicity was evaluated with Ostracodtoxkit and Phytotoxkit tests. At the end of the experiment, soil pH, plant biomass yield, and HM accumulation in plant tissues were determined. HM distribution, HM stability (reduced partition index) and potential environmental risk (mRI index) in the soil were assessed. During phytostabilization, changes in the diversity of the rhizospheric bacterial community were monitored. All amendments significantly increased soil pH and biomass yield and decreased soil phytotoxicity. AGF and BWC increased accumulation of individual HMs by L. luteus roots better than CSS (Cu and Cr, and Ni and Zn, respectively). The soil amendments did not improve Pb accumulation by the roots. Improvements in HM stability depended on amendment type: Ni and Pb stability were improved by all amendments; Zn stability, by AGF, and BWC; Cd stability, by AGF; and Cr stability, by BWC. AGF reduced the mRI most effectively. Microbial diversity in amended soils increased with time of phytostabilization and was up to 9% higher in CSS amended soil than in control soil. AGF application favored the abundance of the genera Arenimonas, Brevundimonas, Gemmatimonas and Variovorax, whose metabolic potential could have contributed to the better plant growth and lower mRI in that soil. In conclusion, AGF and BWC have great potential for restoring steel disposal dump areas, and the strategies researched here can contribute to achieving targets for sustainable development.
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Affiliation(s)
- Maja Radziemska
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Zygmunt M Gusiatin
- Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Słoneczna St. 45G, 10-719, Olsztyn, Poland.
| | - Agnieszka Cydzik-Kwiatkowska
- Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Słoneczna St. 45G, 10-719, Olsztyn, Poland
| | - Artemi Cerdà
- Soil Erosion and Degradation Research Group, Department of Geography, University of Valencia, Blasco Ibañez 28, Valencia, 46 010, Spain
| | - Vaclav Pecina
- Faculty of AgriSciences, Mendel University in Brno, Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, 61300, Brno, Czech Republic; Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, 61200, Brno, Czech Republic
| | - Agnieszka Bęś
- Faculty of Environmental Management and Agriculture, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 4, 10-727, Olsztyn, Poland
| | - Rahul Datta
- Faculty of AgriSciences, Mendel University in Brno, Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, 61300, Brno, Czech Republic
| | - Grzegorz Majewski
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Zbigniew Mazur
- Faculty of Environmental Management and Agriculture, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 4, 10-727, Olsztyn, Poland
| | - Justyna Dzięcioł
- Water Centre Laboratory, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Martin Brtnický
- Faculty of AgriSciences, Mendel University in Brno, Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, 61300, Brno, Czech Republic; Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, 61200, Brno, Czech Republic
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Tao L, Wang L, Yang K, Wang X, Chen L, Ning P. Leaching of iron from copper tailings by sulfuric acid: behavior, kinetics and mechanism. RSC Adv 2021; 11:5741-5752. [PMID: 35423117 PMCID: PMC8694737 DOI: 10.1039/d0ra08865j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 01/11/2021] [Indexed: 11/21/2022] Open
Abstract
Copper tailing is a widespread and intractable solid waste in copper production. Traditional leaching and recovery technology for copper tailing focuses on copper but neglects the leaching of iron. With the increase in applications and demands of iron-containing materials for environment, understanding the leaching behaviors of iron can promote the utilization of copper tailings. In this study, the kinetics and mechanism of the leaching of iron from copper tailings using sulfuric acid were studied. Under optimal conditions (40 °C, sulfuric acid concentration of 0.53 mol L−1, stirring speed of 400 rpm, solid/liquid ratio of 1 : 10 and leaching time of 120 min), 66.45% of Fe, along with 65.32% of Zn and 59.95% of Cu, were leached from the tailings. The leaching of iron was confirmed to be controlled by solid-film diffusion. The reaction orders for sulfuric acid concentration, solid/liquid ratio, and stirring speed were found to be 0.85, −0.70, and 0.40, respectively. Results from XRF, XRD, and SEM indicated that oxides (including CaO, CuO, and ZnO) were leached first, after which Fe2SiO4 was preferentially reacted compared to Fe3O4. The accumulation of CaSO4 and SiO2 inhibited the further leaching of iron. Leaching behavior of copper tailings with sulfuric acid was expounded. Leaching was optimized: 1 M H2SO4, S/L of 1 : 10, T = 40 °C, 120 min. Fe2SiO4 was preferentially leached than Fe3O4. Leaching of Fe is controlled by solid-phase diffusion.![]()
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Affiliation(s)
- Lei Tao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 PR China +86 13888183303
| | - Langlang Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 PR China +86 13888183303
| | - Kanghuai Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 PR China +86 13888183303
| | - Xueqian Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 PR China +86 13888183303
| | - Lu Chen
- Faculty of Business Management, Yunnan Communications Vocational and Technical College Kunming 650500 PR China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 PR China +86 13888183303
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