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Lu H. Microplastic inhibits the sorption of trichloroethylene on modified biochar. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 89:1981-1995. [PMID: 38678403 DOI: 10.2166/wst.2024.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/24/2024] [Indexed: 04/30/2024]
Abstract
Biochar (BC) was used to remove trichloroethylene (TCE) from soil and water phases, and BC modification changed the sorption behavior of pollutants. Microplastics are emerging pollutants in the soil and water phases. Whether microplastics can affect the sorption of TCE by modified BC is not clear. Thus, batch sorption kinetics and isotherm experiments were conducted to elucidate the sorption of TCE on BC, and BC combined with polyethylene (PE) or polystyrene (PS). The results showed that HCl and NaOH modification increased TCE sorption on BC, while HNO3 modification inhibited TCE sorption on BC. When PE/PS and BC coexisted, the TCE sorption capacity decreased significantly on BC-CK + PE, BC-HCl + PE, BC-HNO3 + PE, BC-NaOH + PE, and BC-NaOH + PS, which was likely due to the preferential sorption of PE/PS on BC samples. We concluded that microplastics can change TCE sorption behavior and inhibit TCE sorption on BC samples. Thus, the interaction of BC and microplastics should be considered when BC is used for TCE removal in soil and water remediation.
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Affiliation(s)
- Hainan Lu
- State Environment Protection Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai 200233, China E-mail:
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2
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Maqbool Z, Shahbaz Farooq M, Rafiq A, Uzair M, Yousuf M, Ramzan Khan M, Huo S. Unlocking the potential of biochar in the remediation of soils contaminated with heavy metals for sustainable agriculture. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23257. [PMID: 38310926 DOI: 10.1071/fp23257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/20/2023] [Indexed: 02/06/2024]
Abstract
Agricultural soils contaminated with heavy metals (HMs) impose a threat to the environmental and to human health. Amendment with biochar could be an eco-friendly and cost-effective option to decrease HMs in contaminated soil. This paper reviews the application of biochar as a soil amendment to immobilise HMs in contaminated soil. We discuss the technologies of its preparation, their specific properties, and effect on the bioavailability of HMs. Biochar stabilises HMs in contaminated soil, enhance the overall quality of the contaminated soil, and significantly reduce HM uptake by plants, making it an option in soil remediation for HM contamination. Biochar enhances the physical (e.g. bulk density, soil structure, water holding capacity), chemical (e.g. cation exchange capacity, pH, nutrient availability, ion exchange, complexes), and biological properties (e.g. microbial abundance, enzymatic activities) of contaminated soil. Biochar also enhances soil fertility, improves plant growth, and reduces the plant availability of HMs. Various field studies have shown that biochar application reduces the bioavailability of HMs from contaminated soil while increasing crop yield. The review highlights the positive effects of biochar by reducing HM bioavailability in contaminated soils. Future work is recommended to ensure that biochars offer a safe and sustainable solution to remediate soils contaminated with HMs.
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Affiliation(s)
- Zubaira Maqbool
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; and Department of Soil Science and Environmental Science, Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Shahbaz Farooq
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; and Rice Research Program, Crop Sciences Institute (CSI), National Agricultural Research Centre (NARC), Park Road, Islamabad 44000, Pakistan
| | - Anum Rafiq
- Institute Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Muhammad Uzair
- National Institute of Genomics and Advanced Biotechnology (NIGAB), National Agriculture Research Center (NARC), Park Road, Islamabad, Pakistan
| | - Muhammad Yousuf
- Pakistan Agriculture Research Council (PARC), G5, Islamabad, Pakistan
| | - Muhammad Ramzan Khan
- National Institute of Genomics and Advanced Biotechnology (NIGAB), National Agriculture Research Center (NARC), Park Road, Islamabad, Pakistan
| | - Shuhao Huo
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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3
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Wan Q, Liu B, Zhang M, Zhao M, Dai Y, Liu W, Ding K, Lin Q, Ni Z, Li J, Wang S, Jin C, Tang Y, Qiu R. Co-transport of biochar nanoparticles (BC NPs) and rare earth elements (REEs) in water-saturated porous media: New insights into REE fractionation. JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131390. [PMID: 37060752 DOI: 10.1016/j.jhazmat.2023.131390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/21/2023] [Accepted: 04/07/2023] [Indexed: 06/19/2023]
Abstract
The present study investigated the co-transport behavior of three REEs3+ (La3+, Gd3+, and Yb3+) with and without biochar nanoparticles (BC NPs) in water-saturated porous media. The presence of REEs3+ enhanced the retention of BC NPs in quartz sand (QS) due to decreased electrostatic repulsion between BC NPs and QS, enhanced aggregation of BC NPs, and the contribution of straining. The distribution coefficients (KD) in packed columns in the co-transport of BC NPs and three REEs3+ were much smaller than in batch experiments due to the different hydrodynamic conditions. In addition, we, for the first time, found that REE fractionation in the solid-liquid phase occurred during the co-transport of REEs3+ in the presence and absence of BC NPs. Note that the REE fractionation during the co-transport, which is helpful for the tracing application during earth surface processes, was driven by the interaction of REEs3+ with QS and BC NPs. This study elucidates novel insights into the fate of BC NPs and REEs3+ in porous media and indicates that (i) mutual effects between BC NPs and REE3+ should be considered when BC was applied to REE contaminated aquatic and soil systems; and (ii) REE fractionation provides a useful tool for identifying the sources of coexisting substances.
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Affiliation(s)
- Quan Wan
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Beibei Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Miaoyue Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China.
| | - Man Zhao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuan Dai
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenshen Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Kengbo Ding
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Qingqi Lin
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhuobiao Ni
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jingjing Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Shizhong Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Chao Jin
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Yetao Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Rongliang Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China.
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4
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Burachevskaya M, Minkina T, Bauer T, Lobzenko I, Fedorenko A, Mazarji M, Sushkova S, Mandzhieva S, Nazarenko A, Butova V, Wong MH, Rajput VD. Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal. Sci Rep 2023; 13:2020. [PMID: 36737633 PMCID: PMC9898244 DOI: 10.1038/s41598-023-27638-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/05/2023] [Indexed: 02/05/2023] Open
Abstract
For effective soil remediation, it is vital to apply environmentally friendly and cost-effective technologies following the notion of green sustainable development. In the context of recycling waste and preserving nutrients in the soil, biochar production and utilization have become widespread. There is an urgent need to develop high-efficiency biochar-based sorbents for pollution removal from soil. This research examined the efficacy of soil remediation using biochar made from three distinct sources: wood, and agricultural residues (sunflower and rice husks). The generated biochars were characterized by SEM/SCEM, XRF, XRD, FTIR, BET Specific Surface Area, and elemental compositions. The presence of hydroxyl and phenolic functional groups and esters in wood, sunflower and rice husk biochar were noted. The total volume of pores was in the following descending order: rice husk > wood > sunflower husk. However, wood biochar had more thermally stable, heterogeneous, irregular-shaped pores than other samples. Adsorption of soil-heavy metals into biochars differed depending on the type of adsorbent, according to data derived from distribution coefficients, sorption degree, Freundlich, and Langmuir adsorption models. The input of biochars to Calcaric Fluvic Arenosol increased its adsorption ability under contamination by Cu(II), Zn(II), and Pb(II) in the following order: wood > rice husk > sunflower husk. The addition of sunflower husk, wood, and rice husk biochar to the soil led to an increase in the removal efficiency of metals in all cases (more than 77%). The increase in the percentage adsorption of Cu and Pb was 9-19%, of Zn was 11-21%. The present results indicated that all biochars functioned well as an absorbent for removing heavy metals from soils. The tailor-made surface chemistry properties and the high sorption efficiency of the biochar from sunflower and rice husks could potentially be used for soil remediation.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Alexander Nazarenko
- The Southern Scientific Centre, Russian Academy of Sciences, Rostov-on-Don, Russia
| | - Vera Butova
- Southern Federal University, Rostov-on-Don, Russia
| | - Ming Hung Wong
- Consortium On Health, Environment, Education, and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, China
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Hou J, Pugazhendhi A, Phuong TN, Thanh NC, Brindhadevi K, Velu G, Lan Chi NT, Yuan D. Plant resistance to disease: Using biochar to inhibit harmful microbes and absorb nutrients. ENVIRONMENTAL RESEARCH 2022; 214:113883. [PMID: 35835163 DOI: 10.1016/j.envres.2022.113883] [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: 04/24/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Phytosanitary concerns are part of today's agricultural environment. The use of chemicals to treat plant diseases is both a source of pollution and allows pathogens to become resistant. Additionally, it can improve the chemical, physical, and biological properties of soil. Therefore, the soil environment is more conducive to healthy plant growth. By improving the chemical, physical, and biological attributes of soil, biochar can enhance plant resistance. Agricultural success has been attributed to biochar's acidic pH, which promotes beneficial soil microorganisms and increases soil nutrients; it is also porous, which provides a home and protects soil microorganisms. By improving soil properties, biochar becomes even more effective at controlling pathogens. The article also discusses the benefits of biochar for managing pathogens in agricultural soils. In addition, we examine several research papers that discuss the use of biochar as a method of combating soil-related pathogens and plant diseases. Biochar can be used to combat soil-borne diseases and other conditions.
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Affiliation(s)
- Jinbo Hou
- School of Forestry, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Tran Nhat Phuong
- Faculty of Medicine, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Nguyen Chi Thanh
- Faculty of Applied Sciences, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, 70000, Viet Nam
| | - Kathirvel Brindhadevi
- Center for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Gomathi Velu
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Deyi Yuan
- School of Forestry, Central South University of Forestry and Technology, Changsha, 410004, China.
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6
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Xie X, Yang K, Lu Y, Li Y, Yan J, Huang J, Xu L, Yang M, Yan Y. Broad-spectrum and effective rare earth enriching via Lanmodulin-displayed Yarrowia lipolytica. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129561. [PMID: 35999730 DOI: 10.1016/j.jhazmat.2022.129561] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
The traditional mining processes of rare earth elements (REEs) are accompanied by the production of a large number of acid mine drainage rich in REEs. A wide-adaptive, low-cost and environmentally friendly biosorbent is an attractive technology to enrich and recycle REEs from the liquid wastes. To construct a broad-spectrum and efficient biosorbent, a novel REEs-binding protein Lanmodulin (LanM) is successfully displayed on the cell surface of a fungus, Yarrowia lipolytica, for the first time, and the adsorption capacities for various REEs are studied. The LanM-displayed Y. lipolytica shows significantly enhanced adsorption capacities for multiple REEs, achieving the highest reported values of 49.83 ± 2.87 mg Yb /g DCW, 50.38 ± 1.46 mg Tm /g DCW, 49.94 ± 3.61 mg Er /g DCW and 48.72 ± 3.09 mg Tb/g DCW, respectively. Moreover, the LanM-displayed Y. lipolytica possesses a high selectivity for REEs over other common metal cations and excellent suitability under acidic conditions. The kinetics and equilibrium analysis of biosorption processes agree well with the pseudo-first kinetic and Langmuir isotherm model. Based on the FTIR and SEM-EDS analysis, the chelation with phosphate/carboxylate groups dominates the Yb binding in LanM-displayed cells, and LanM enhances the adsorption performances by introducing more binding sites with high selectivity towards a wide range of REEs. Thus, the LanM-displayed Y. lipolytica investigated in this study exhibits prosperous potential for the enriching/removal of REEs from acid mine drainage.
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Affiliation(s)
- Xiaoman Xie
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Kaixin Yang
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Yunpan Lu
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Yunchong Li
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Jinyong Yan
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China.
| | - Jinsha Huang
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Li Xu
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Min Yang
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Yunjun Yan
- Key Lab of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China.
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7
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Lu H, Xu J, Feng Z, Li F, Cao X, Yang J. Effects of different modifiers on the sorption and structural properties of biochar derived from wheat stalk. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:54988-55002. [PMID: 35312917 DOI: 10.1007/s11356-022-19351-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Nitrobenzene is a widespread contaminant in water. Biochar (BC) is a promising material for removing organic pollutants, but the adsorption capacity of pristine BC is low. Chemical modification is often used to improve the adsorption performance, but information on the sorption of nitrobenzene by modified BC is rare. In this study, BCs pyrolyzed at 300, 500, and 700 °C were modified by hydrochloric acid (HCl), sulfuric acid (H2SO4), sodium hydroxide (NaOH), hydrogen peroxide (H2O2), and nitric acid (HNO3), respectively. The properties, nitrobenzene sorption behaviors, and sorption mechanisms of different BCs were analyzed. The results showed that chemical modification decreased the sorption of nitrobenzene on BCs pyrolyzed at 300 °C, possibly due to the loss of the partition phase and the increase in polarity after modification. Regarding BCs pyrolyzed at 500 and 700 °C, the NaOH and HCl modifications significantly increased the sorption capacity by 19% and 60%, 18%, and 41%, respectively, possibly due to the increase in surface area, available pores, and aromaticity, while HNO3 modification decreased the sorption capacity by 41% and 31%. Two reasons were probably responsible for the decrease: one was the decrease in surface area after HNO3 modification due to the destruction of pore walls and the continuity of holes; the other was the strong repulsion between the nitro groups formed on the surface of BC and the nitro groups of nitrobenzene that drove nitrobenzene molecules away from the surface. A principal component-based comprehensive evaluation of the BC properties, which were significantly correlated with the sorption isotherm parameters, was used to evaluate the nitrobenzene sorption performance of the modified BC. Overall, BC pyrolyzed at 700 °C modified with NaOH or HCl were proposed as effective sorption materials for the removal of nitrobenzene in environment, which also provided a chemical modified method of biochar derived from agricultural waste.
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Affiliation(s)
- Hainan Lu
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiacheng Xu
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhengjun Feng
- Institute of Loess Plateau, Shanxi University, Taiyuan, 030006, Shanxi, China
| | - Feng Li
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Xinde Cao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jie Yang
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China.
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Swaren L, Safari S, Konhauser KO, Alessi DS. Pyrolyzed biomass-derived nanoparticles: a review of surface chemistry, contaminant mobility, and future research avenues to fill the gaps. BIOCHAR 2022; 4:33. [PMID: 35673519 PMCID: PMC9163009 DOI: 10.1007/s42773-022-00152-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Nanoparticles are abundant in the subsurface, soil, streams, and water bodies, and are often a critical control on elemental speciation, transport and cycling in the natural environment. This review provides an overview of pyrolyzed biomass-derived nanoparticles (PBNPs), their surface properties and reactivity towards aqueous species. We focus specifically on biochar-derived nanoparticles and activated carbon-derived nanoparticles which fall under our classification of PBNPs. Activated carbon-iron (nano)composites are included in some instances where there are significant gaps in literature because of their environmental relevance. Increased use of activated carbon, along with a resurgence in the manufacture and application of biochar for water treatment and soil amendment, has generated significant concerns about the mobility and toxicity of PBNPs derived from the bulk material in environmental applications. Recent examples are discussed to highlight current progress in understanding the influence of PBNPs on contaminant transport, followed by a critical discussion of gaps and future research directions.
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Affiliation(s)
- Logan Swaren
- Department of Earth and Atmospheric Sciences, University of Alberta, 3-16 Earth Sciences Building, Edmonton, AB T6G 2E3 Canada
| | - Salman Safari
- Department of Earth and Atmospheric Sciences, University of Alberta, 3-16 Earth Sciences Building, Edmonton, AB T6G 2E3 Canada
| | - Kurt O. Konhauser
- Department of Earth and Atmospheric Sciences, University of Alberta, 3-16 Earth Sciences Building, Edmonton, AB T6G 2E3 Canada
| | - Daniel S. Alessi
- Department of Earth and Atmospheric Sciences, University of Alberta, 3-16 Earth Sciences Building, Edmonton, AB T6G 2E3 Canada
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Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization. WATER 2022. [DOI: 10.3390/w14040563] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
This work demonstrates the potential of Fe-modified biochar for the treatment of arsenic (As) simulated wastewater and the monitoring of adsorption in real-time. Specifically, we propose the utilization of date-palm leaves for the production of biochar, further modified with Fe in order to improve its adsorption function against inorganic pollutants, such as As. Both the original biochar and the Fe-modified biochar were used for adsorption of As in laboratory batch and column experiments. The monitoring of the biochar(s) performance and As treatment was also enhanced by using the spectral induced polarization (SIP) method, offering real-time monitoring, in addition to standard chemical monitoring. Both the original and the Fe-modified biochar achieved high removal rates with Fe-modified biochar achieving up to 98% removal of As compared to the 17% by sand only (control). In addition, a correlation was found between post-adsorption measurements and SIP measurements.
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10
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Liu H, Guo H, Pourret O, Wang Z, Liu M, Zhang W, Li Z, Gao B, Sun Z, Laine P. Geochemical signatures of rare earth elements and yttrium exploited by acid solution mining around an ion-adsorption type deposit: Role of source control and potential for recovery. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150241. [PMID: 34798751 DOI: 10.1016/j.scitotenv.2021.150241] [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: 08/26/2021] [Revised: 09/05/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Elevated concentrations of rare earth elements and yttrium (REE + Y) in acid mine drainage (AMD) attract worldwide attention. However, the source and control of REE + Y distribution patterns in AMD remain unclear. Water, rock, sediment, and sludge samples were collected from an ion-adsorption deposit site to investigate REE + Y concentrations and distributions. The heavy REE (HREE)-enriched patterns of the AMD resulted from preferential desorption of HREE in the clay-rich sediment strata, from which the REE + Y were ion-exchanged by an in-situ underground leaching process using ammonium sulfate brine. Free ions and sulfate complexes preserved REE + Y patterns and facilitated REE + Y mobility in the AMD leachate system. High concentrations of REE + Y occurred in the AMD, and decreased progressively through nitrification-denitrification and coagulation-precipitation procedures in a water treatment plant. Concentrations of REE + Y were one to three orders of magnitude higher in AMD than those in groundwater, and were negatively correlated (r2 = -0.72) with pH (3.8 to 8.7), suggesting that an acid desorption from minerals contributed the REE + Y to the AMD from the source rock. Normalized REE + Y patterns showed enrichments of HREE over light REE (LREE) and negative Ce anomaly. The distribution patterns were relatively constant for all water samples, despite their huge difference in REE + Y concentrations. This suggested a limited impact of preferential precipitation of LREE over HREE on REE + Y fractionations during neutralization. The potentially recoverable LREE and HREE were calculated to range between 1.12 kg/day and 3.37 kg/day, and between 1.29 kg/day and 3.76 kg/day, respectively. The findings reported in this study lend promise for efficient REE + Y recovery from AMD.
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Affiliation(s)
- Haiyan Liu
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China.
| | - Huaming Guo
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China.
| | | | - Zhen Wang
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
| | - Maohan Liu
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
| | - Weimin Zhang
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
| | - Zebing Li
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
| | - Bai Gao
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
| | - Zhanxue Sun
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China
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11
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Lee S, Han J, Ro HM. Mechanistic insights into Cd(II) and As(V) sorption on Miscanthus biochar at different pH values and pyrolysis temperatures. CHEMOSPHERE 2022; 287:132179. [PMID: 34521014 DOI: 10.1016/j.chemosphere.2021.132179] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/13/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
Biochar has received great attention as a biosorbent, but explanations of the underlying sorption mechanisms are still unclear. Here, batch sorption of cadmium (Cd(II)) and arsenate (As(V)) to Miscanthus biochar at different pH values and pyrolysis temperatures and the sorption mechanisms were comprehensively investigated. The maximum sorption capacities for both Cd(II) and As(V) were observed under alkaline conditions. Physisorption was identified as a common sorption mechanism for both Cd(II) and As(V) irrespective of pH; however, inner-sphere complexation with acidic functional groups (AFGs) and crystallized precipitation as otavite predominate at higher pH values for Cd(II), while hydrophobic attraction of arsenite and metallic As and electrostatic bridging with multivalent ions at deprotonated AFGs are presumed to be dominant sorption mechanisms for As(V). Inner-sphere complexes of Cd(II) (98.6%) and electrostatic bridging complexes of As(V) (89.5%) were the dominant sorption forms for B400, while inner-sphere complexes (45.9%) and precipitates (50.5%) of Cd(II) and physisorption and hydrophobic interactions of As (63.7%) were abundant. The results challenge the widely held notion that the sorption of anions decreases as pH increases, while that of cations increases with increasing pH. This unexpected phenomenon can be explained by reduction of As(V) and by the difference in the charge densities between As(V) and basic functional groups of the biochar. Such biochar-induced reduction would cause an unexpected risk of exposing human health and ecosystems to reduceable pollutants. These findings contribute to a better explanation for the environmental fate and behavior of inorganic pollutants in biochar applications.
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Affiliation(s)
- Seoyeon Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Junho Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Hee-Myong Ro
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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12
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Zea M, Souza A, Yang Y, Lee L, Nemali K, Hoagland L. Leveraging high-throughput hyperspectral imaging technology to detect cadmium stress in two leafy green crops and accelerate soil remediation efforts. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118405. [PMID: 34710518 DOI: 10.1016/j.envpol.2021.118405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/17/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a toxic metal that can accumulate in soils and negatively impact crop as well as human health. Amendments like biochar have potential to address these challenges by reducing Cd bioavailability in soil, though reliance on post-harvest wet chemical methods to quantify Cd uptake have slowed efforts to identify the most effective amendments. Hyperspectral imaging (HSI) is a novel technology that could overcome this limitation by quantifying symptoms of Cd stress while plants are still growing. The goals of this study were to: 1) determine whether HSI can detect Cd stress in two distinct leafy green crops, 2) quantify whether a locally sourced biochar derived from hardwoods can reduce Cd stress and uptake in these crops, and 3) identify vegetative indices (VIs) that best quantify changes in plant stress responses. Experiments were conducted in a tightly controlled automated phenotyping facility that allowed all environmental factors to be kept constant except Cd concentration (0, 5 10 and 15 mg kg-1). Symptoms of Cd stress were stronger in basil (Ocimum basilicum) than kale (Brassica oleracea), and were easier to detect using HSI. Several VIs detected Cd stress in basil, but only the anthocyanin reflectance index (ARI) detected all levels of Cd stress in both crop species. The biochar amendment did reduce Cd uptake, especially at low Cd concentrations in kale which took up more Cd than basil. Again, the ARI index was the most effective in quantifying changes in plant stress mediated by the biochar. These results indicate that the biochar evaluated in this study has potential to reduce Cd bioavailability in soil, and HSI could be further developed to identify rates that can best achieve this benefit. The technology also may be helping in elucidating mechanisms mediating how biochar can influence plant growth and stress responses.
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Affiliation(s)
- Maria Zea
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, 47907, USA
| | - Augusto Souza
- Institute for Plant Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Yang Yang
- Institute for Plant Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Linda Lee
- Department of Agronomy, Purdue University, West Lafayette, IN, 47907, USA
| | - Krishna Nemali
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, 47907, USA
| | - Lori Hoagland
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, 47907, USA.
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13
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Serfontein S, Aghoghovwia MP, Ololade OO. Evaluating the treatment of heavy metals in acidic wastewater by activated carbon. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:1264-1272. [PMID: 34554044 DOI: 10.1080/10934529.2021.1980309] [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: 06/03/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
The study investigated the use of activated carbon (AC), produced from pinewood, to remove copper, zinc and iron from modified landfill leachates. South Africa faces an imminent water crisis, hence the need to see wastewater as an important source that must be treated and reused to combat water deficits in future. The use of AC as a soil amendment for the removal of heavy metals (HM) is not well researched. This study aimed to determine the ideal amount of AC (5%, 10%, 15% and 20% [w/w]) to add to soil using leaching columns for optimum HM adsorption. Modified acidic wastewater (pH > 2) was leached through soil columns packed with sandy loam soil and different amounts of AC (5%, 10%, 15% and 20% [w/w]). The results indicated that all the columns efficiently removed 94% copper, 80% zinc and 99% iron. Even a small amount (5% w/w) of AC was effective in removing HMs and can thus be considered as a possible cost-effective treatment option for acidic wastewater.
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Affiliation(s)
- Susan Serfontein
- Centre of Environmental Management, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Makhosazana P Aghoghovwia
- Department of Soil, Crop and Climate Sciences, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Olusola O Ololade
- Centre of Environmental Management, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
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14
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Pinto J, Costa M, Henriques B, Soares J, Dias M, Viana T, Ferreira N, Vale C, Pinheiro-Torres J, Pereira E. Competition among rare earth elements on sorption onto six seaweeds. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2020.09.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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15
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Soria RI, Rolfe SA, Betancourth MP, Thornton SF. The relationship between properties of plant-based biochars and sorption of Cd(II), Pb(II) and Zn(II) in soil model systems. Heliyon 2020; 6:e05388. [PMID: 33241138 PMCID: PMC7672296 DOI: 10.1016/j.heliyon.2020.e05388] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/05/2020] [Accepted: 10/27/2020] [Indexed: 12/29/2022] Open
Abstract
Plant based biochars are proposed as soil amendments to immobilize potentially toxic trace elements (PTEs), such as Cd(II), Pb(II) and Zn(II) and aid in soil restoration. However, the sorption capacity of biochar for these elements can vary widely depending on biochar nature and metal properties. Currently, there is no clear methodology to pre-screen biochars for their suitability as adsorbents for these elements. Therefore, to facilitate biochar selection for application in soil restoration, this study explored the relationships between the physico-chemical properties of five plant-based biochars and their capacity to immobilize Cd(II), Pb(II) and Zn(II). Batch experiments using synthetic soil pore water were used to assess the sorption of these elements. The sorption isotherms described by the Hill model indicated that PTE sorption capacity followed the order Pb(II) > Cd(II) >Zn(II) regardless of biochar type in mono-element systems. Preferential sorption of Pb(II) limited the immobilization of Cd(II) and Zn(II) in multi-element systems. ATR-FTIR and SEM-EDX spectroscopy studies indicated that Cd(II) and Pb(II) sorption was mediated by complexation with carboxylic groups, cation-π interactions and precipitation with phosphates and silicates, while Zn(II) sorption occurred mainly by complexation with phenolic groups and precipitation with phosphates. A high correlation (>0.8) between Electrical Conductivity, Cation Exchange Capacity, pH and sorption capacity was identified for all metals tested, highlighting the electrostatic nature of the sorption mechanisms involved. Biochars derived from herbaceous feedstock were better candidates for remediation of soil polluted with Cd(II), Pb(II) and Zn(II), rather than wood-derived biochar. Overall, this study provides evidence of the direct relationship between specific properties of plant-based biochars (pH and EC) and their suitability as adsorbents for some PTEs in soil systems.
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Affiliation(s)
- Rosa I. Soria
- Civil and Structural Engineering Department, Sheffield University, Sheffield, S102TN, United Kingdom
| | - Stephen A. Rolfe
- Department of Animal and Plant Science, Sheffield University, Sheffield, S102TN, United Kingdom
| | | | - Steven F. Thornton
- Civil and Structural Engineering Department, Sheffield University, Sheffield, S102TN, United Kingdom
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16
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Zhong Y, Igalavithana AD, Zhang M, Li X, Rinklebe J, Hou D, Tack FMG, Alessi DS, Tsang DCW, Ok YS. Effects of aging and weathering on immobilization of trace metals/metalloids in soils amended with biochar. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:1790-1808. [PMID: 32789328 DOI: 10.1039/d0em00057d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biochar is an effective amendment for trace metal/metalloid (TMs) immobilization in soils. The capacity of biochar to immobilize TMs in soil can be positively or negatively altered due to the changes in the surface and structural chemistry of biochar after soil application. Biochar surfaces are oxidized in soils and induce structural changes through physical and biochemical weathering processes. These changes in the biochar surface and structural chemistry generally increase its ability to immobilize TMs, although the generation of dissolved black carbon during weathering may increase TM mobility. Moreover, biochar modification can improve its capacity to immobilize TMs in soils. Over the short-term, engineered/modified biochar exhibited increased TM immobilization capacity compared with unmodified biochar. In the long-term, no large distinctions in such capacities were seen between modified and unmodified biochars due to weathering. In addition, artificial weathering at laboratories also revealed increased TM immobilization in soils. Continued collection of mechanistic evidence will help evaluate the effect of natural and artificial weathering, and biochar modification on the long-term TM immobilization capacity of biochar with respect to feedstock and synthesis conditions in contaminated soils.
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Affiliation(s)
- Yuchi Zhong
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China
| | - Avanthi Deshani Igalavithana
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea.
| | - Ming Zhang
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea. and Department of Environmental Engineering, China Jiliang University, No. 258 Xueyuan Street, Hangzhou, Zhejiang 310018, P. R. China
| | - Xiaodian Li
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea. and Department of Environmental Engineering, China Jiliang University, No. 258 Xueyuan Street, Hangzhou, Zhejiang 310018, P. R. China
| | - Jörg Rinklebe
- School of Architecture and Civil Engineering, University of Wuppertal, Pauluskirchstraße 7, 42285, Wuppertal, Germany and Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Korea
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Filip M G Tack
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Daniel S Alessi
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea. and Department of Environmental Engineering, China Jiliang University, No. 258 Xueyuan Street, Hangzhou, Zhejiang 310018, P. R. China
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17
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Brünjes R, Hofmann T. Anthropogenic gadolinium in freshwater and drinking water systems. WATER RESEARCH 2020; 182:115966. [PMID: 32599421 PMCID: PMC7256513 DOI: 10.1016/j.watres.2020.115966] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 05/17/2023]
Abstract
The increasing use of gadolinium-based contrast agents (GBCAs) for magnetic resonance imaging is leading to widespread contamination of freshwater and drinking water systems. Contrary to previous assumptions that GBCAs are stable throughout the water cycle, they can degrade. The stability of GBCAs depends largely on their organic ligands, but also on the physicochemical conditions. There is specific concern regarding UV end-of-pipe water treatments, which may degrade GBCAs. Degradation products in drinking water supplies can increase the risk of adverse health effects. This is of particular relevance where the raw water for drinking water production has a higher proportion of recycled wastewater. GBCAs concentrations in aquatic systems, often referred to as anthropogenic gadolinium, are determined using a variety of calculation methods. Where anthropogenic gadolinium concentrations are low, the inconsistent use of these methods results in high discrepancies and high levels of uncertainty. The current COVID-19 crisis will, in the short-term, drastically decrease the input of GBCAs to freshwater systems. Temporal variations in anthropogenic gadolinium concentrations in river water can be used to better understand river-aquifer interactions and groundwater flow velocities. Collecting urine from all patients following MRI examinations could be a way forward to halt the generally increasing concentrations of Gd in drinking water systems and recover this technologically critical element.
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Affiliation(s)
- Robert Brünjes
- University of Vienna, Centre for Microbiology and Environmental Systems Science, Environmental Geosciences, Althanstraße 14, UZA2, 1090, Vienna, Austria
| | - Thilo Hofmann
- University of Vienna, Centre for Microbiology and Environmental Systems Science, Environmental Geosciences, Althanstraße 14, UZA2, 1090, Vienna, Austria.
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Comparison of Monovalent and Divalent Ions Removal from Aqueous Solutions Using Agricultural Waste Biochars Prepared at Different Temperatures-Experimental and Model Study. Int J Mol Sci 2020; 21:ijms21165851. [PMID: 32824005 PMCID: PMC7461599 DOI: 10.3390/ijms21165851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 11/16/2022] Open
Abstract
Copper (Cu) and silver (Ag) occur naturally in the environment but have toxic effects on organisms at elevated concentrations. This paper discussed the removal of Cu and Ag from aqueous solutions using biochars obtained at different pyrolysis temperatures. Three biomass sources-sunflower husks (SH), a mixture of sunflower husks and rapeseed pomace (SR) and wood waste (WW)-were pyrolyzed at 300, 400 and 500 °C. Biochars produced at 500 °C exhibited a higher specific surface area, lower variable surface charge and lower contents of surface functional groups than those obtained at 400 or 300 °C. The pseudo-second-order model and intra-particle diffusion (IPD) model well-described the Cu and Ag adsorption kinetics. The Cu adsorption was about 1.48 times slower than the Ag adsorption on the biochars obtained at 500 °C. The model of Langmuir-Freundlich well-described the equilibrium adsorption. Agricultural biochars obtained at >500 °C had a surface with a higher affinity to attract Ag than Cu and were able to remove a larger amount of heavy metals from aqueous media than those prepared at lower pyrolysis temperatures.
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Koopal L, Tan W, Avena M. Equilibrium mono- and multicomponent adsorption models: From homogeneous ideal to heterogeneous non-ideal binding. Adv Colloid Interface Sci 2020; 280:102138. [PMID: 32387754 DOI: 10.1016/j.cis.2020.102138] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/30/2020] [Accepted: 03/04/2020] [Indexed: 01/19/2023]
Abstract
Aqueous sorption processes play an important role in, for example, pollutant binding to natural nanoparticles, colloid stability, separation and enrichment of components and remediation processes. In this article, which is a tribute to Hans Lyklema, models of localized (ad)sorption of molecules and ions from aqueous solution on homogeneous and heterogeneous nanoparticles are presented. The discussed models range from ideal monocomponent sorption on homogeneous (Langmuir) and heterogeneous sites, to multicomponent ideal sorption on homogeneous and heterogeneous sites, multicomponent multisite ion complexation with charge distribution (CD-MUSIC) and non-ideal competitive adsorption on heterogeneous sites (NICA). Attention is also paid to lateral interaction, site-induced aggregation, binding stoichiometry and multilayer formation. Electrical double layer models are discussed in relation to ion binding on impermeable and permeable nanoparticles. Insight in models that can describe sorption of molecules and ions on nanoparticles leads to awareness of the limitations of using simple models for complex systems and is needed for the selection and application of an appropriate model for a given system. This is relevant for all practical sorption processes and for a better understanding of the role of natural nanoparticles in the binding of nutrients and pollutants.
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Affiliation(s)
- Luuk Koopal
- Physical Chemistry and Soft Matter, Wageningen University and Research, Wageningen, the Netherlands; College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wenfeng Tan
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Marcelo Avena
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina.
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Hemati Matin N, Jalali M, Buss W. Synergistic immobilization of potentially toxic elements (PTEs) by biochar and nanoparticles in alkaline soil. CHEMOSPHERE 2020; 241:124932. [PMID: 31590018 DOI: 10.1016/j.chemosphere.2019.124932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 05/15/2023]
Abstract
Biochar and nanoparticle (NP) have the ability to sorb potentially toxic elements (PTEs) from soil and reduce toxicity and leaching into water bodies. However, there is need to tailor biochar formulations to soil types. In this study, we investigate the mobility and chemical forms of Cd, Cr, Cu, Ni, and Zn in a spiked, alkaline soil after amendment with combination of NPs (nano-Fe (NF), nano-clay (NC)) and biochars (almond shell 500 °C, walnut shell 400 °C) in different doses (0, 2.5, 5, and 10%). Many previous studies concluded biochar immobilized PTEs due to an increase in soil pH, which can be disregarded here (soil pH 7.9). In a twenty-week column leaching experiment biochar addition significantly decreased PTE leaching and NP addition further immobilized PTEs in most cases. On average almond biochar more effectively reduced Zn leaching and walnut biochar was more effective in decreasing the leaching of Cd, Cr, and Ni (e.g. 5% biochar reduced Cr leaching by 68%). Copper was immobilized effectively by both biochars. Nano-clay combined with walnut biochar performed best in all treatments, in particular for Cd, Ni, and Zn (e.g. 10% walnut biochar only and in combination with NC reduced Zn leaching by 14.2% and 58.5%, respectively). After amendment, PTEs were present in the Fe-Mn oxides, organic and residual fractions and less in the exchangeable fraction, reducing PTE availability and leachability. The results demonstrate that even for cationic PTEs that behave similarly in the environment optimal biochar-mineral formulations can differ.
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Affiliation(s)
- Narges Hemati Matin
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
| | - Mohsen Jalali
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
| | - Wolfram Buss
- Fenner School of Environment and Society, Australian National University, Canberra, Australia; Conversion Technologies of Biobased Resources, University of Hohenheim, Stuttgart, Germany.
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21
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Novel Functionality of Lithium-Impregnated Titania as Nanocatalyst. Catalysts 2019. [DOI: 10.3390/catal9110943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The present work incorporates the synthesis of a multifunctional catalyst for the transesterification of waste cooking oil (WCO) to biodiesel and recovery of rare earth elements (REEs). For this purpose, TiO2 nanoparticles and TiO2 doped with lithium ions were prepared. The influence of lithium ions on the catalytic performance of TiO2 was attained by impregnation of the different molar ratios of lithium hydroxide to bare TiO2. Then each catalyst was screened for catalytic conversion of WCO to fatty acid methyl ester (FAME) and also for REEs recovery. All synthesized materials were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) analysis, and Hammett indicator for the basicity test. The obtained biodiesel was characterized by gas chromatography with mass spectrometry (GC-MS), 1H, and 13C nuclear magnetic resonance (NMR). Moreover, the physical parameters of the synthesized biodiesel were also determined. The REEs recovery efficiency of synthesized nanomaterials was investigated, and the percentage of REEs removal was determined by inductively-coupled plasma optical emission spectroscopy (ICP-OES).
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22
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Gallello G, Ferro-Vázquez C, Chenery S, Lang C, Thornton-Barnett S, Kabora T, Hodson ME, Stump D. The capability of rare earth elements geochemistry to interpret complex archaeological stratigraphy. Microchem J 2019. [DOI: 10.1016/j.microc.2019.05.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Martins GC, Penido ES, Alvarenga IFS, Teodoro JC, Bianchi ML, Guilherme LRG. Amending potential of organic and industrial by-products applied to heavy metal-rich mining soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 162:581-590. [PMID: 30031319 DOI: 10.1016/j.ecoenv.2018.07.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/04/2018] [Accepted: 07/10/2018] [Indexed: 06/08/2023]
Abstract
Mining activities promote the development of economies and societies, yet they cause environmental impacts that must be minimized so that their benefits overcome the likely risks. This study evaluated eco-friendly technologies based on the use of low-carbon footprint wastes and industrial by-products as soil amendments for the revegetation of Zn-mining areas. Our goal was to select adequate soil amendments that can be used to recover these areas, with a focus on low-cost materials. The amendments - limestone, sewage sludge, biochar, and composted food remains - were first characterized concerning their chemical composition and structural morphologies. Soil samples (Entisol, Oxisol, Technosol) from three different areas located inside an open-pit mine were later incubated for 60 days with increasing doses of each soil amendment, followed by cultivation with Andropogon gayanus, a native species. The amendments were able to change not only soil pH, but also the phytoavailable levels of Cd, Zn, and Pb. Limestone and biochar were the amendments that caused the highest pH values, reducing the phytoavailability of the metals. All amendments improved seed germination; however, the composted food remains presented low levels of germination, which could make the amendments unfeasible for revegetation efforts. Our findings showed that biochar, which is a by-product of the mining company, is the most suitable amendment to enhance revegetation efforts in the Zn-mining areas, not only because of its efficiency and cost, but also due to its low carbon footprint, which is currently the trend for any "green remediation" proposal.
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Affiliation(s)
- Gabriel Caixeta Martins
- Federal University of Lavras, Soil Science Department, 3037, 37200000 Lavras, Minas Gerais, Brazil; Vale Institute of Technology, 955 Boaventura da Silva Street, 66055090 Belém, Pará State, Brasil
| | - Evanise Silva Penido
- Federal University of Lavras, Chemistry Department, 3037, 37200000 Lavras, Minas Gerais, Brazil
| | | | | | - Maria Lucia Bianchi
- Federal University of Lavras, Chemistry Department, 3037, 37200000 Lavras, Minas Gerais, Brazil
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Maraschi F, Speltini A, Tavani T, Gulotta MG, Dondi D, Milanese C, Prato M, Profumo A, Sturini M. Silica-supported pyrolyzed lignin for solid-phase extraction of rare earth elements from fresh and sea waters followed by ICP-MS detection. Anal Bioanal Chem 2018; 410:7635-7643. [DOI: 10.1007/s00216-018-1376-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 11/28/2022]
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