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Song Q, Kong F, Liu BF, Song X, Ren HY. Biochar-based composites for removing chlorinated organic pollutants: Applications, mechanisms, and perspectives. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 21:100420. [PMID: 38765891 PMCID: PMC11099330 DOI: 10.1016/j.ese.2024.100420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 05/22/2024]
Abstract
Chlorinated organic pollutants constitute a significant category of persistent organic pollutants due to their widespread presence in the environment, which is primarily attributed to the expansion of agricultural and industrial activities. These pollutants are characterized by their persistence, potent toxicity, and capability for long-range dispersion, emphasizing the importance of their eradication to mitigate environmental pollution. While conventional methods for removing chlorinated organic pollutants encompass advanced oxidation, catalytic oxidation, and bioremediation, the utilization of biochar has emerged as a prominent green and efficacious method in recent years. Here we review biochar's role in remediating typical chlorinated organics, including polychlorinated biphenyls (PCBs), triclosan (TCS), trichloroethene (TCE), tetrachloroethylene (PCE), organochlorine pesticides (OCPs), and chlorobenzenes (CBs). We focus on the impact of biochar material properties on the adsorption mechanisms of chlorinated organics. This review highlights the use of biochar as a sustainable and eco-friendly method for removing chlorinated organic pollutants, especially when combined with biological or chemical strategies. Biochar facilitates electron transfer efficiency between microorganisms, promoting the growth of dechlorinating bacteria and mitigating the toxicity of chlorinated organics through adsorption. Furthermore, biochar can activate processes such as advanced oxidation or nano zero-valent iron, generating free radicals to decompose chlorinated organic compounds. We observe a broader application of biochar and bioprocesses for treating chlorinated organic pollutants in soil, reducing environmental impacts. Conversely, for water-based pollutants, integrating biochar with chemical methods proved more effective, leading to superior purification results. This review contributes to the theoretical and practical application of biochar for removing environmental chlorinated organic pollutants.
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Affiliation(s)
- Qingqing Song
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Fanying Kong
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Xueting Song
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
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Mahmood Al-Nuaimy MN, Azizi N, Nural Y, Yabalak E. Recent advances in environmental and agricultural applications of hydrochars: A review. ENVIRONMENTAL RESEARCH 2024; 250:117923. [PMID: 38104920 DOI: 10.1016/j.envres.2023.117923] [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: 06/07/2023] [Revised: 11/27/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Hydrochar is a carbonaceous material that is generated through the process of hydrothermal carbonization (HTC) from biomass, which has garnered considerable attention in recent years owing to its potential applications in a diverse range of fields, such as environmental remediation and agriculture. Hydrochar is produced from a diverse range of biomass waste materials and retains exceptional properties, including high carbon content, stability, and surface area, making it an optimal candidate for various enviro-agricultural applications. Moreover, it delves into the production process of hydrochar, with explicit emphasis on the optimization of certain properties during the production of hydrochar from bio-waste. Furthermore, the potential of hydrochar as an adsorbent and catalyst support for heavy metals and dyes was extensively explored, along with a soil remediation potential that can improve the physical, chemical and biological properties of soil. This comprehensive review aims to provide a thorough overview of hydrochar with a particular focus on its production, properties, and prospective applications. The significance of hydrochar is accentuated and the growing need for alternative sources of energy and materials that are environmentally sustainable is highlighted in this paper. Besides, the consequence of hydrochar on soil properties such as water-holding capacity, nutrient retention, and total soil porosity, as well as its influence on soil chemical properties such as cation exchange capacity, electrical conductivity, and surface functionality is scrutinized.
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Affiliation(s)
| | - Nangyallai Azizi
- Department of Analytical Chemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - Yahya Nural
- Department of Analytical Chemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - Erdal Yabalak
- Department of Nanotechnology and Advanced Materials, Mersin University, Mersin, Turkey; Department of Chemistry and Chemical Processing Technologies, Technical Science Vocational School, Mersin University, 33343, Mersin, Turkey.
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Feng B, Mao Z, Yu J, Wang Y, Zhang Z, Xu L, Lu D. The remediation of polycyclic aromatic hydrocarbon contaminated soil by immobilized microorganisms using distiller's grains. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21415-21429. [PMID: 38393558 DOI: 10.1007/s11356-024-32399-7] [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: 09/25/2023] [Accepted: 02/03/2024] [Indexed: 02/25/2024]
Abstract
Polycyclic aromatic hydrocarbons are a persistent organic pollutant, and their biodegradation in the soil is often limited due to the limited degradation ability of indigenous bacteria and the low activity of exogenous PAH degrading bacteria. Immobilized microbial technology can protect microorganisms from the impact of harsh environments, and distiller's grains have the potential as carriers for microbial immobilization. This study aims to use distiller's grains as a microbial carrier, investigate the feasibility of immobilized microorganisms using distiller's grains for remediation of PAH contaminated soil; explore the relationship between soil nutrient content, consumption, and PAH degradation rate; and reveal the mechanism of bioremediation from the perspective of soil enzyme activity and microbial community composition. The results showed that after 72 days of remediation, the removal rates of phenanthrene and pyrene in the treatment of immobilized microorganisms in distiller grains reached 91.78% and 58.59%, respectively. Distiller grains can serve as a carrier for microorganisms, providing them with shelter and nutrients to enhance their chance of survival. Additionally, they can regulate the composition of soil particles and improve aeration, thereby increasing the efficiency of PAH degradation in soil.
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Affiliation(s)
- Bo Feng
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Zhen Mao
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Jinbiao Yu
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Yuqian Wang
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Zheyu Zhang
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Liang Xu
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Dongqiang Lu
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
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Yin Y, Li J, Zhu S, Chen Q, Chen C, Rui Y, Shang J. Effect of biochar application on rice, wheat, and corn seedlings in hydroponic culture. J Environ Sci (China) 2024; 135:379-390. [PMID: 37778812 DOI: 10.1016/j.jes.2023.01.023] [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: 11/06/2022] [Revised: 01/22/2023] [Accepted: 01/22/2023] [Indexed: 10/03/2023]
Abstract
In recent years, biochar has attracted considerable attention for soil quality improvement and carbon sequestration due to its unique physicochemical properties. However, the mechanism by which biochar application negatively affects the growth of crop seedlings has not been fully investigated. In this study, a hydroponic experiment was conducted to evaluate the response of rice, wheat, and corn seedlings to biochar application (CK, 0 g/L; BC1, 0.5 g/L; and BC2, 1.0 g/L). Compared with the CK treatment, the BC1 and BC2 treatments decreased the fresh shoot and root weights of rice and corn seedlings (P < 0.05), but there was no significant effect on wheat seedlings (P > 0.05). For the contents of nutrient elements in seedlings, both BC1 and BC2 treatments hindered the roots from absorbing Fe and Cu and increased the uptake of Ca and Mn. Compared with the CK treatment, the translocation factor (TF) values of Ca, Mn, and Zn were significantly decreased especially in rice seedlings (35.3%-36.8%, 68.7%-76.5%, and 29.8%-22.0%, respectively) under the BC1 and BC2 treatments, while only Mn was significantly decreased in wheat and corn seedlings (P < 0.05). Transmission electron microscope (TEM) analysis of root cross-sections showed that nano-sized biochar particles (10∼23 nm) were found in the root cells under BC2 treatment conditions. Our findings reveal that a large amount of biochar application can reduce nutrient absorption and translocation, and hinder rice, wheat, and corn seedlings, particularly rice seedling, in hydroponic system.
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Affiliation(s)
- Yingjie Yin
- College of Land Science and Technology, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, and Key Laboratory of Arable Land Conservation in North China, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Jikai Li
- College of Land Science and Technology, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, and Key Laboratory of Arable Land Conservation in North China, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Sihang Zhu
- Agricultural Management Institute, Ministry of Agriculture and Rural Affairs, Beijing 102208, China
| | - Qing Chen
- College of Resources and Environmental Sciences, China Agricultural University, Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Beijing 100193, China
| | - Chong Chen
- College of Land Science and Technology, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, and Key Laboratory of Arable Land Conservation in North China, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Yukui Rui
- College of Resources and Environmental Sciences, China Agricultural University, Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Beijing 100193, China
| | - Jianying Shang
- College of Land Science and Technology, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, and Key Laboratory of Arable Land Conservation in North China, Ministry of Agriculture and Rural Affairs, Beijing 100193, China.
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Bose S, Senthil Kumar P, Rangasamy G, Prasannamedha G, Kanmani S. A review on the applicability of adsorption techniques for remediation of recalcitrant pesticides. CHEMOSPHERE 2023; 313:137481. [PMID: 36529165 DOI: 10.1016/j.chemosphere.2022.137481] [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: 09/15/2022] [Revised: 11/22/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Pesticide has revolutionised the agricultural industry by reducing yield losses and by enhancing productivity. But indiscriminate usage of such chemicals can negatively impact human health and ecosystem balance as certain pesticides can be recalcitrant in nature. Out of some of the suggested sustainable techniques to remove the pesticide load from the environment, adsorption is found to be highly efficient and can also be implemented on a large scale. It has been observed that natural adsorption that takes place after the application of the pesticide is not enough to reduce the pesticide load, hence, adsorbents like activated carbon, plant-based adsorbents, agricultural by-products, silica materials, polymeric adsorbents, metal organic framework etc are being experimented upon. It is becoming increasingly important to choose adsorbents which will not leave any secondary pollutant after treatment and the cost of production of such adsorbent should be feasible. In this review paper, it has been established that certain adsorbent like biochar, hydrochar, resin, metal organic framework etc can efficiently remove pesticides namely chlorpyrifos, diazinon, 2,4-Dichlorophenoxyacetic Acid, atrazine, fipronil, imidacloprid etc. The mechanism of adsorption, thermodynamics and kinetic part have been discussed in detail with respect to the pesticide and adsorbent under discussion. The reason behind choosing an adsorbent for the removal of a particular pesticide have also been explained. It is further highly recommended to carry out a cost analysis before implementing an absorbent because inspite of its efficacy, it might not be cost effective to use it for a particular type of pesticide or contaminant.
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Affiliation(s)
- Sanchali Bose
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - G Prasannamedha
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - S Kanmani
- Centre for Environmental Studies, Department of Civil Engineering, Anna University, Chennai, 600025, India
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Dhangar K, Kumar M, Aouad M, Mahlknecht J, Raval NP. Aggregation behaviour of black carbon in aquatic solution: Effect of ionic strength and coexisting metals. CHEMOSPHERE 2023; 311:137088. [PMID: 36332736 DOI: 10.1016/j.chemosphere.2022.137088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 10/04/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Black Carbon (BC) is an important constituent of both aquatic and terrestrial environment, but also has several adverse effects on human health, aquatic life, and contributes to the global climate change. Thus, to understand the fate and transport of BC nanoparticles (NPs) in the environment, it's important to understand the colloidal stability or aggregation behaviour and factors affecting it, under various environmental conditions, including both aquatic and atmospheric. This study investigated the individual influence of ionic strengths, valence (Na+, Ca2+ and Mg2+), metals (Zn2+, Cu2+, Ni2+ and Cd2+), and organic substances (PO43- and Humic Acid: HA) on the effective diameter or hydrodynamic diameter and zeta potential of BC-NPs in aquatic systems. A dynamic light scattering (DLS) principle-based 90 Plus Particle Size Analyzer was used for measurements of BC particle size and zeta potential at varying ionic chemistry. The results showed that strong ionic strength promotes aggregation of BC-NPs till the repulsion forces become dominant due to more negative zeta potential. The Aggregation of BC-NPs was observed to be significantly dependent on the ionic valence, where divalent ions caused more aggregation than monovalent ions. Metal ions at higher concentration (around 1 mM) promoted the aggregation rate of BC-NPs, and Cu+2 dominated among all selected metals. Conversely, organic matter (PO43- and HA) tends to promote stabilisation of BC-NPs instead of aggregation. Though this study investigated individual effect of substances, influence of possible environmental combination of substances will help to get more clear idea.
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Affiliation(s)
- Kiran Dhangar
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat, 382-355, India
| | - Manish Kumar
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat, 382-355, India; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Eugenio Garza Sada 2501 Sur, Monterrey, 64849, Mexico.
| | - Marwan Aouad
- College of Engineering, Applied Science University, Bahrain
| | - Jurgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Eugenio Garza Sada 2501 Sur, Monterrey, 64849, Mexico
| | - Nirav P Raval
- Laboratoire Environnement Dynamiques Territoires Montagnes, Université Savoie Mont Blanc, Campus Scientifique - Savoie Technolac, Le Bourget-du-Lac, 73376, Cedex, France
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Chen Y, Su J, Zhao H, Li JY, Wang J, Wang Q, Yin J, Jin L. In-situ biochar amendment mitigates dietary risks of heavy metals and PAHs in aquaculture products. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119615. [PMID: 35705152 DOI: 10.1016/j.envpol.2022.119615] [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: 01/06/2022] [Revised: 04/04/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) are two common contaminant groups of concern in aquaculture products. While biochar amendment can be one of the solutions to immobilize these contaminant in pond sediment, its in situ effectiveness in mitigating the bioavailability, tissue residue, and dietary risk of these contaminants is yet to be tested. In this study, we added wheat straw biochar in sediments of three aquaculture ponds with polyculture of fish and shrimps and employed passive sampling techniques (i.e., diffusive gradient in thin film for HMs and polydimethylsiloxane for PAHs) to assess the diffusion flux and bioavailability throughout the culturing cycle. Reduction in HM concentrations in organisms by biochar after 28 weeks ranged from 17% to 65% for benthic organisms and from 6.0% to 47% for fish. ΣTHQs values of HMs dropped from 2.5 to 2.1 and 1.2 to 0.91 for the two organisms with the initial ΣTHQs value above 1.0. The decrease rates of both the concentrations and ΣTHQs values followed the order of Cu > Cr > Pb > Cd, which was closely correlated with the speciation of HMs in the sediments. ΣPAHs values dropped significantly at the growth stage (20th week) and the mature stage (28th week), and, on average, by 34% across all the organisms. Carcinogenic PAHs in aquaculture products decreased dramatically at the seedling stage (12th week), while there was no significant change observed for the Incremental Lifetime Cancer Risk values. By comparing the freely-dissolved concentrations in pore water of sediments and the overlying water, consistently enhanced diffusion fluxes of HMs and PAHs from water to sediment over the whole culturing cycle were obtained. Our results demonstrated the in situ applicability of biochar amendment to remediating chemical pollution in aquaculture environment and safeguarding quality of aquatic products.
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Affiliation(s)
- Yiqin Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Junrong Su
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Hanyin Zhao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Juan-Ying Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
| | - Jian Wang
- Shanghai Shentian Industrial Co., Ltd., Shanghai, 200090, China
| | - Qian Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jie Yin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Ling Jin
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Department of Health Technology and Informatics and Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
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Al-Wabel MI, Ahmad M, Al-Swadi HA, Ahmad J, Abdin Y, Usman ARA, Al-Farraj ASF. Sorption–Desorption Behavior of Doxycycline in Soil–Manure Systems Amended with Mesquite Wood Waste Biochar. PLANTS 2021; 10:plants10122566. [PMID: 34961036 PMCID: PMC8709227 DOI: 10.3390/plants10122566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/24/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022]
Abstract
Elevated levels of doxycycline (DC) have been detected in the environment due to its extensive utilization as a veterinary antibiotic. Sorption–desorption behavior of DC in soil affects its transport, transformation, and availability in the environment. Thus, sorption–desorption behavior of DC was explored in three soils (S1, S2, and S3) after manure application with and without mesquite wood-waste-derived biochar (BC) pyrolyzed at 600 °C. Sorption batch trials demonstrated the highest DC sorption in soil S1 as compared to S2 and S3, either alone or in combination with manure or manure + BC. Chemical sorption and pore diffusion were involved in DC sorption, as indicated by the kinetic models. Soil S1 with manure + BC exhibited the highest Langmuir model predicted sorption capacity (18.930 mg g−1) compared with the other two soils. DC sorption capacity of soils was increased by 5.0–6.5-fold with the addition of manure, and 10–13-fold with BC application in a soil–manure system. In desorption trials, manure application resulted in 67%, 40%, and 41% increment in DC desorption in soil S1, S2, and S3, respectively, compared to the respective soils without manure application. In contrast, BC application reduced DC desorption by 73%, 66%, and 65%, in S1, S2, and S3, respectively, compared to the soils without any amendment. The highest DC sorption after BC application could be due to H bonding, π–π EDA interactions, and diffusion into the pores of BC. Hence, mesquite wood-waste-derived BC can effectively be used to enhance DC retention in contaminated soil to ensure a sustainable ecosystem.
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Affiliation(s)
- Mohammad I. Al-Wabel
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
- Correspondence: author: ; Tel.: +966-1-467-8442; Fax: +966-1-467-8440
| | - Munir Ahmad
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
| | - Hamed A. Al-Swadi
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
- Department of Soil, Water and Environment, Faculty of Agriculture, Sana’a University, Sana’a 31220, Yemen
| | - Jahangir Ahmad
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
| | - Yassir Abdin
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
| | - Adel R. A. Usman
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
- Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - Abdullah S. F. Al-Farraj
- Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (M.A.); (H.A.A.-S.); (J.A.); (Y.A.); (A.R.A.U.); (A.S.F.A.-F.)
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Wang YP, Liu YL, Tian SQ, Yang JJ, Wang L, Ma J. Straw biochar enhanced removal of heavy metal by ferrate. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126128. [PMID: 34492922 DOI: 10.1016/j.jhazmat.2021.126128] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/01/2021] [Accepted: 05/12/2021] [Indexed: 06/13/2023]
Abstract
This study demonstrated that As(III) was appreciably removed by ferrate in the presence of straw biochar. Removal efficiency of As in ferrate/biochar system was over 91%, increased by 34% compared with ferrate alone ([biochar]0 = 10 mg/L, [ferrate]0 = 6 mg/L, [As(III)]0 = 200 μg/L). In the reaction process, As(III) was oxidized to As(V) mainly by ferrate, while ferrate was reduced into ferric (hydr)oxides and coated on the biochar. Biochar was oxidized in the reaction and its surface area, pore volume and the amount of Lewis acid functional groups were substantially improved, which provided interaction sites for As adsorption. Analysis of hydrodynamic diameter and zeta potential revealed that biochar interacted with the ferrate resulted ferric oxides and enlarged the Fe-C-As particle/floc, which promoted their settlement and thus the liquid-solid separation of As. As(V) was adsorbed on the surface of biochar and ferric (hydr)oxides through hydrogen bond, electrostatic attraction and As-(OFe) bond. Ferrate/biochar was not only effective for As removal, but removed 73.31% of As, 50.38% of Cd, and 75.27% of Tl when these hazardous species synchronously existed in polluted water (initial content: As, 100 μg/L; Cd, 50 μg/L; Tl, 1 μg/L). The combination of ferrate with biochar has potential for the remediation of hazardous species polluted water.
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Affiliation(s)
- Yun-Peng Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yu-Lei Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Shi-Qi Tian
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jing-Jing Yang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Lu Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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Gao M, Xu Y, Chang X, Song Z. Fe-Mn oxide modified biochar decreases phthalate uptake and improves grain quality of wheat grown in phthalate-contaminated fluvo-aquic soil. CHEMOSPHERE 2021; 270:129428. [PMID: 33388501 DOI: 10.1016/j.chemosphere.2020.129428] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
We used a pot experiment to investigate the effectiveness of 0.5, 1.0, and 2.0% biochar (BC) or iron-manganese oxide modified biochar (FMBC) additions on the biomass, enzyme activity, and grain quality of wheat plants grown in dibutyl phthalate (DBP) and di-(2-ethylhcxyl) phthalate (DEHP) polluted fluvo-aquic soils, as well as the bioavailability of DBP and DEHP. BC and FMBC applications significantly reduced DBP and DEHP accumulation in grains, which enhanced the content of starch and protein-related enzyme, thereby improving yield, and starch and protein content in wheat grains and increasing the content of minerals including Fe, Mn, K and Ca. Molecular docking assays showed that DBP and DEHP could bind to starch synthase (GBSS) through hydrogen bonds and intermolecular forces, which may have hindered the entry of substrates or occupied the binding sites of the reactants, thus inhibiting the activity of GBSS. In addition, FMBC treatment had a better inhibitory effect on the phytotoxicity of DBP and DEHP on wheat grain than BC treatment. This result might be attributed to the fact that FMBC has more functional groups and porous structure, and larger specific surface area. In summary, these findings contribute to our understanding of the mechanism of phthalate phytotoxicity, which may help us prevent/reduce it in the future.
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Affiliation(s)
- Minling Gao
- Department of Civil and Environmental Engineering, Shantou University, No. 243 Daxue Road, Shantou, Guangdong Province, 515063, China
| | - Yalei Xu
- School of Environmental Science and Engineering, Tiangong University, No. 399 Binshui West Road, Xiqing District, Tianjin, 300387, China
| | - Xipeng Chang
- School of Environmental Science and Engineering, Tiangong University, No. 399 Binshui West Road, Xiqing District, Tianjin, 300387, China
| | - Zhengguo Song
- Department of Civil and Environmental Engineering, Shantou University, No. 243 Daxue Road, Shantou, Guangdong Province, 515063, China.
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11
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Zhang G, Liu X, Gao M, Song Z. Effect of Fe-Mn-Ce modified biochar composite on microbial diversity and properties of arsenic-contaminated paddy soils. CHEMOSPHERE 2020; 250:126249. [PMID: 32105859 DOI: 10.1016/j.chemosphere.2020.126249] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/29/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
In this study, we investigated the mechanism of decrease in arsenic (As) bioavailability after addition of biochar (BC) supplemented with iron (Fe)- manganese (Mn)- cerium (Ce) oxide (FMCBC) to As-contaminated paddy soil. We explored the effects of these composites on the oxidation, reduction, microbial community, and soil enzyme activity of As-contaminated paddy soil. Results showed that FMCBCs improve soil pH, significantly improve the redox capacity of soil, and reduce bioavailable forms of As. FMCBCs can convert As from a specifically or non-specifically bound form into amorphous hydrous oxide bound- and crystalline hydrous oxide bound form. The application of FMCBCs increased soil enzyme activity (urease, catalase, alkaline phosphatase, and peroxidase), and greatly influenced the relative abundance of certain microorganisms (Proteobacteria, Acidobacteria, and Gemmatimonadetes), which improved soil enzyme heavy metal tolerance and prevented their denaturation. Thus, FMCBCs can not only change the form and distribution of As in soil but also create an environment suitable for microbial growth, consequently affecting the geochemical cycling of As in soil.
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Affiliation(s)
- Guogang Zhang
- College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China
| | - Xuewei Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture of China, Tianjin, 300191, China
| | - Minling Gao
- Department of Civil and Environmental Engineering, Shantou University, Shantou, 515063, China
| | - Zhengguo Song
- Department of Civil and Environmental Engineering, Shantou University, Shantou, 515063, China.
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12
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Huang R, Zhang Z, Xiao X, Zhang N, Wang X, Yang Z, Xu K, Liang Y. Structural changes of soil organic matter and the linkage to rhizosphere bacterial communities with biochar amendment in manure fertilized soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 692:333-343. [PMID: 31349172 DOI: 10.1016/j.scitotenv.2019.07.262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 07/01/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
The molecular structure of soil organic matter (SOM) is closely related to the structure and functions of the rhizosphere community. In this study, a microcosm experiment was conducted to investigate the effect of straw-derived biochar on the structural differentiation of SOM and rhizosphere bacterial communities. 13C NMR spectra showed that the relative abundance of carboxyl, alkyl, N-alkyl, O-alkyl and methoxyl groups decreased by 22%, 31%, 27%, 27% and 27%, respectively, and the relatively stable structure of aryl and O-aryl groups increased by 213% and 41%, respectively. In addition, network-based analysis showed that biochar amendment not only improved the network connectivity of the rhizosphere bacteria, but also enhanced the linkage between bacteria and the molecular structure of SOM. The topological properties of the network, including the number of edges, network density, and average clustering coefficient, were increased by 79%, 15% and 22%, respectively. Moreover, modularization analysis and structural equation model indicated that rhizosphere bacterial network was the important bio-factor affecting the content of labile carbon.
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Affiliation(s)
- Ruilin Huang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; School of Environmental and Safety Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Zhenyi Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China; Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Xian Xiao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; School of Environmental and Safety Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Na Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
| | - Xiaoyue Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zeping Yang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Kaiqin Xu
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Yuting Liang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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13
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Yue L, Lian F, Han Y, Bao Q, Wang Z, Xing B. The effect of biochar nanoparticles on rice plant growth and the uptake of heavy metals: Implications for agronomic benefits and potential risk. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 656:9-18. [PMID: 30502737 DOI: 10.1016/j.scitotenv.2018.11.364] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/23/2018] [Accepted: 11/24/2018] [Indexed: 05/04/2023]
Abstract
The interaction between biochar nanoparticles (nano-BC) and plant roots in the rhizosphere is largely unknown, although it is crucial for understanding the role of BC in plant growth and bioavailability of pollutants. The effect of nano-BC produced at a series of temperatures (300-600 °C) on alleviating the phytotoxicity of Cd2+ to rice plants was investigated from the aspects of biochemical changes and Cd uptake in this study. The kinetics of Cd2+ fluxes in different root zones in the presence of nano-BC were also measured using a scanning ion-selective electrode technique. We found that the high-temperature nano-BC could more significantly alleviate the phytotoxicity of Cd2+ than the low-temperature and bulk BCs as reflected by the higher increased biomass, root vitality, chlorophyll content, and decreased MDA content as well as relative electrical conductivity of rice plants, which is due to the high adsorption affinity of nano-BC for Cd2+. Also, for the first time we demonstrated that nano-BC could differentially affect the net flux of Cd2+ in different zones of the root tips. However, nano-BC (especially that produced at higher temperatures) more significantly increased the contents of antioxidative enzyme activities (e. g., SOD, POD, and CAT) and soluble protein than the treatment only with Cd2+ (5.0 mg/L), indicating that nano-BC could induce oxidative stress in the rice plants. These results indicate that nano-BC could greatly reduce the uptake and phytotoxicity of Cd2+, but its potential risk should not be overlooked during the environmental and agricultural applications of biochar.
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Affiliation(s)
- Le Yue
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Fei Lian
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China.
| | - Yang Han
- Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China
| | - Qiongli Bao
- Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China
| | - Zhengyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, the, United States
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14
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Li X, Song Y, Wang F, Bian Y, Jiang X. Combined effects of maize straw biochar and oxalic acid on the dissipation of polycyclic aromatic hydrocarbons and microbial community structures in soil: A mechanistic study. JOURNAL OF HAZARDOUS MATERIALS 2019; 364:325-331. [PMID: 30384242 DOI: 10.1016/j.jhazmat.2018.10.041] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/13/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
Whether the rhizodegradation of organic contaminants occurs in biochar- amended soil and its potential mechanisms have rarely been reported. Therefore, a study was conducted to investigate the combined effects of root exudates and biochar on the dissipation of polycyclic aromatic hydrocarbons (PAHs) and on the microbial community structures in soil. As a major component of the root exudates of ryegrass, oxalic acid (OA) significantly enhanced the dissipation of high- and low-ring PAHs in the studied soil with or without maize straw biochar amendment (p < 0.05). However, biochar alone enhanced only the dissipation of high-ring PAHs. The activities of three enzymes (urease, polyphenol oxidase and dehydrogenase) were the highest in soil amended with both maize straw biochar and 0.5 mg kg-1 of OA. Moreover, soil microbial biomass and the abundances of genera and genes associated with PAH degradation were significantly enhanced with the tandem application of biochar and OA (p < 0.05). These changes led to a synergetic effect of biochar and OA on the shifts in microbial community structures and on the dissipation of PAHs, especially for high-ring PAHs. The results in this study suggested that a combined biochar-rhizosphere approach should be a feasible remediation strategy for PAH-contaminated soil.
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Affiliation(s)
- Xiaona Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China.
| | - Fang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongrong Bian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
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15
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Lian F, Yu W, Wang Z, Xing B. New Insights into Black Carbon Nanoparticle-Induced Dispersibility of Goethite Colloids and Configuration-Dependent Sorption for Phenanthrene. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:661-670. [PMID: 30540440 DOI: 10.1021/acs.est.8b05066] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Black carbon nanoparticles (nano-BC) are one of the most active components in pyrogenic carbonaceous matter and involved in many biogeochemical processes. This study investigated heteroaggregation of nano-BC with goethite (a model of natural mineral colloids) and the configuration effect of heteroaggregates on phenanthrene (PHE) sorption. Nano-BC could significantly enhance the dispersion of goethite via heteroaggregation when its concentration was higher than the critical concentration ( Cc). The Cc was dependent on the surface potential of nano-BC, which was directly measured for the first time in this study. Configuration and stability of the heteroaggregates were regulated by BC-goethite mass ratio and solution pH. At pH 5.3, oppositely charged goethite and nano-BC interacted with each other through electrostatic attraction and the configuration of heteroaggregates was dependent on BC-goethite mass ratio. At pH 7.4, where both goethite and nano-BC were negatively charged, they heteroaggregated with each other mainly through H-bonding and Lewis acid-base mechanisms, and the configuration of heteroaggregates was independent of BC-goethite mass ratio. For PHE sorption, small-sized heteroaggregates were more favorable than large ones due to the higher content of active sorption sites. Interestingly, at a higher concentration of PHE, we found that the solute molecules could probably penetrate into and/or alter the configuration of heteroaggregates and enhance its sorption capacity for PHE. These findings are useful for understanding the effect of nano-BC on colloidal stability and organic compound sorption of minerals.
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Affiliation(s)
- Fei Lian
- Institute of Environmental Processes and Pollution Control and School of Environmental and Civil Engineering , Jiangnan University , Wuxi 214122 , P. R. China
- Stockbridge School of Agriculture , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Wenchao Yu
- College of Environmental Science and Engineering , Nankai University , Tianjin 300071 , P. R. China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control and School of Environmental and Civil Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Baoshan Xing
- Stockbridge School of Agriculture , University of Massachusetts , Amherst , Massachusetts 01003 , United States
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16
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Ni N, Shi R, Liu Z, Bian Y, Wang F, Song Y, Jiang X. Effects of biochars on the bioaccessibility of phenanthrene/pyrene/zinc/lead and microbial community structure in a soil under aerobic and anaerobic conditions. J Environ Sci (China) 2018; 63:296-306. [PMID: 29406113 DOI: 10.1016/j.jes.2017.05.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 03/22/2017] [Accepted: 05/15/2017] [Indexed: 06/07/2023]
Abstract
The immobilization of co-contaminants of organic and inorganic pollutants by biochar is an efficient remediation strategy. However, the effect of biochar amendments on the bioaccessibility of the co-contaminants in dry versus flooded soils has rarely been compared. In batch experiments, bamboo-derived biochar (BB) had a higher sorption capacity for phenanthrene (Phe)/pyrene (Pyr)/zinc (Zn) than corn straw-derived biochar (CB), while CB had a higher sorption capacity for lead (Pb) than BB. After 150days of incubation, the amendments of 2% CB, 0.5% BB and 2% BB effectively suppressed the dissipation and reduced the bioaccessibility of Phe/Pyr by 15.65%/18.02%, 17.07%/18.31% and 25.43%/27.11%, respectively, in the aerobic soils. This effectiveness was more significant than that in the anaerobic soils. The accessible Zn/Pb concentrations were also significantly lower in the aerobic soils than in the anaerobic soils, regardless of treatments. The Gram-negative bacterial biomass and the Shannon-Weaver index in the aerobic soil amended with 2% CB were the highest. The soil microbial community structure was jointly affected by changes in the bioaccessibility of the co-contaminants and the soil physiochemical properties caused by biochar amendments under the two conditions. Therefore, dry land farming may be more reliable than paddy soil cultivation at reducing the bioaccessibility of Phe/Pyr/Zn/Pb and enhancing the soil microbial diversity in the short term.
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Affiliation(s)
- Ni Ni
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China.
| | - Renyong Shi
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zongtang Liu
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, Jiangsu 224051, China
| | - Yongrong Bian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Fang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yang Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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17
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Song Y, Bian Y, Wang F, Herzberger A, Yang X, Gu C, Jiang X. Effects of biochar on dechlorination of hexachlorobenzene and the bacterial community in paddy soil. CHEMOSPHERE 2017; 186:116-123. [PMID: 28772178 DOI: 10.1016/j.chemosphere.2017.07.139] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/13/2017] [Accepted: 07/27/2017] [Indexed: 06/07/2023]
Abstract
Anaerobic reductive dechlorination is an important degradation pathway for chlorinated organic contaminants in paddy soil. This study investigated the effects of amending paddy soil with wheat straw biochar on both the dechlorination of hexachlorobenzene (HCB), a typical highly chlorinated contaminant, and on the structure of soil bacteria communities. Soil amendment of 0.1% biochar did not significantly affect the dechlorination of HCB in the soil. However, biochar amendment at higher application levels (5%) stimulated the dechlorination of HCB in the first month of anaerobic incubation and inhibited the dechlorination of HCB after that period. The stimulation effect may be ascribed to the graphite carbon and carbon-centered persistent radicals, which are redox active, in biochar. The inhibiting effect could be partly ascribed to the reduced bioavailability of HCB in biochar-amended soils. High-throughput sequencing revealed that the amendment of biochar changed the soil bacterial community structure but not the bacterial abundances and diversities. The relative abundance of Dehalococcoidaceae in the tested soils showed a significant relationship with the dechlorination percentages of HCB, indicating that Dehalococcoidaceae may be the main HCB-dechlorinating bacteria in the studied paddy soil. The results indicated that low application levels of biochar did not affect the dechlorination of HCB in the paddy soil, while high application levels of biochar mainly inhibited the dechlorination of HCB due to the reduced bioavailability of HCB and the reduced abundances of certain dechlorinating bacteria in the biochar-amended paddy soil.
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Affiliation(s)
- Yang Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China.
| | - Yongrong Bian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China
| | - Fang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China
| | - Anna Herzberger
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI 48824, United States
| | - Xinglun Yang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China
| | - Chenggang Gu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, PR China.
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18
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Song Y, Bian Y, Wang F, Xu M, Ni N, Yang X, Gu C, Jiang X. Dynamic Effects of Biochar on the Bacterial Community Structure in Soil Contaminated with Polycyclic Aromatic Hydrocarbons. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6789-6796. [PMID: 28731707 DOI: 10.1021/acs.jafc.7b02887] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Amending soil with biochar is an effective soil remediation strategy for organic contaminants. This study investigated the dynamic effects of wheat straw biochar on the bacterial community structure during remediation by high-throughput sequencing. The wheat straw biochar amended into the soil significantly reduced the bioavailability and toxicity of polycyclic aromatic hydrocarbons (PAHs). Biochar amendment helped to maintain the bacterial diversity in the PAH-contaminated soil. The relationship between the immobilization of PAHs and the soil bacterial diversity fit a quadratic model. Before week 12 of the incubation, the incubation time was the main factor contributing to the changes in the soil bacterial community structure. However, biochar greatly affected the bacterial community structure after 12 weeks of amendment, and the effects were dependent upon the biochar type. Amendment with biochar mainly facilitated the growth of rare bacterial genera (relative abundance of 0.01-1%) in the studied soil. Therefore, the application of wheat straw biochar into PAH-contaminated soil can reduce the environmental risks of PAHs and benefit the soil microbial ecology.
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Affiliation(s)
- Yang Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Yongrong Bian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Fang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Min Xu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Ni Ni
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Xinglun Yang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Chenggang Gu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing, Jiangsu 210008, People's Republic of China
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Han L, Qian L, Yan J, Chen M. Effects of the biochar aromaticity and molecular structures of the chlorinated organic compounds on the adsorption characteristics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5554-5565. [PMID: 28032286 DOI: 10.1007/s11356-016-8303-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
Adsorption behaviors of the chlorinated organic compounds (COCs) (i.e., trichloroethylene (TCE), 1,2,4-trichlorobenzene (1,2,4-TCB); 1,2-dichlorobenzene (1,2-DCB); and monochlorobenzene (MCB)) by the commercial rice husk-based biochar (RH500) and the laboratory-prepared biochars from corn stalks under different pyrolytic temperatures (i.e., CS300, CS500, CS700) were examined and interpreted by the pseudo-first-order kinetic model, the double layer model with two energies, and the Freundlich model. It is identified that the first-order adsorption rate constants (k 1 = 0.06∼0.51 h-1) were proportional to the high aromaticity and/or low polarity of biochars and the strong hydrophobicity of the COCs. The saturated adsorption capacity for the COCs was followed by the order of RH500 > CS500 > CS700 > CS300. RH500 showed the highest adsorption capacity for the COCs due to its high surface area (SA) and total pore volume (TPV). However, CS500 with low SA and TPV development highlighted the important roles of the aromaticity and/or low polarity on the COCs adsorption. In addition, 1,2,4-TCB showed the highest saturated adsorption capacity on all biochars, followed by TCE, 1,2-DCB, and MCB. The results further revealed the positive effects of the physical properties (α, N M, ε 1, and ε 2), the hydrophobicity and electrostatic forces (i.e., π-π interaction and electron donor-acceptor interaction) between the adsorbates and the aromatic moieties of biochar surfaces on the adsorption of COCs.
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Affiliation(s)
- Lu Han
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Linbo Qian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Jingchun Yan
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Mengfang Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
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20
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Peng B, Chen L, Que C, Yang K, Deng F, Deng X, Shi G, Xu G, Wu M. Adsorption of Antibiotics on Graphene and Biochar in Aqueous Solutions Induced by π-π Interactions. Sci Rep 2016; 6:31920. [PMID: 27534975 PMCID: PMC4989150 DOI: 10.1038/srep31920] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/28/2016] [Indexed: 12/21/2022] Open
Abstract
The use of carbon based materials on the removal of antibiotics with high concentrations has been well studied, however the effect of this removal method is not clear on the actual concentration of environments, such as the hospital wastewater, sewage treatment plants and aquaculture wastewater. In this study, experimental studies on the adsorption of 7 antibiotics in environmental concentration of aqueous solutions by carbon based materials have been observed. Three kinds of carbon materials have shown very fast adsorption to antibiotics by liquid chromatography-tandem mass spectrometry (LC-MS-MS) detection, and the highest removal efficiency of antibiotics could reach to 100% within the range of detection limit. Surprisedly, the adsorption rate of graphene with small specific surface area was stronger than other two biochar, and adsorption rate of the two biochar which have approximate specific surface and different carbonization degree, was significantly different. The key point to the present observation were the π-π interactions between aromatic rings on adsorbed substance and carbon based materials by confocal laser scanning microscope observation. Moreover, adsorption energy markedly increased with increasing number of the π rings by using the density functional theory (DFT), showing the particular importance of π-π interactions in the adsorption process.
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Affiliation(s)
- Bingquan Peng
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Liang Chen
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China.,Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.,School of Science, Zhejiang Agriculture and Forestry University, Lin'an, Zhejiang 311300, China
| | - Chenjing Que
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Ke Yang
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Fei Deng
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Xiaoyong Deng
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Guosheng Shi
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Gang Xu
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Minghong Wu
- Shanghai Applied Radiation Institute, Shanghai University, 99 Shangda Road, Shanghai 200444, China
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21
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Han L, Qian L, Yan J, Chen M. Contributions of different biomass components to the sorption of 1,2,4-trichlorobenzene under a series of pyrolytic temperatures. CHEMOSPHERE 2016; 156:262-271. [PMID: 27179244 DOI: 10.1016/j.chemosphere.2016.04.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/31/2016] [Accepted: 04/08/2016] [Indexed: 06/05/2023]
Abstract
In order to investigate contributions of cellulose (CEL), hemicellulose (HEM), lignin (LIG) to the sorption capacity of biochar derived from lignocellulose, the individual component and their artificially modeled biomass mixture (C-H-L) were pyrolyzed under oxygen-limited condition at various pyrolytic temperatures (i.e. 250, 350, 500, 700 °C). The characterization analysis of biochars and sorption batch experiments were carried out. Variations in physiochemical property of different component biochars resulted in discrepancies in their ability to function as sorbents to 1,2,4-trichlorobenzene (1,2,4-TCB). The maximum mass sorption capacity (Qfm) of 1,2,4-TCB was the greatest on CEL biochars ranging from 58.31 to 601.20 mg g(-1), and can be best explained by their huge surface area and micropore volume. Hydrophobic partitioning-sorption into 'soft' amorphous alkyl carbon may account for the second greatest Qfm (45.09-56.57 mg g(-1)) on HEM biochars under low pyrolytic temperatures (250-350 °C) with the lowest surface area. LIG biochars with more compact and smooth aromatic structure surface may undergo a surface monolayer specific adsorption. The Qfm (87.86-196.53 mg g(-1)) on C-H-L biochars were largely dependent on CEL and HEM components for their outstanding sorption capacity and higher content in biomass. Therefore, the results highlighted the importance of CEL and HEM components for 1,2,4-TCB sorption to biochar.
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Affiliation(s)
- Lu Han
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Linbo Qian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jingchun Yan
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Mengfang Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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22
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Song Y, Li Y, Zhang W, Wang F, Bian Y, Boughner LA, Jiang X. Novel Biochar-Plant Tandem Approach for Remediating Hexachlorobenzene Contaminated Soils: Proof-of-Concept and New Insight into the Rhizosphere. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5464-71. [PMID: 27327363 DOI: 10.1021/acs.jafc.6b01035] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Volatilization of semi/volatile persistent organic pollutants (POPs) from soils is a major source of global POPs emission. This proof-of-concept study investigated a novel biochar-plant tandem approach to effectively immobilize and then degrade POPs in soils using hexachlorobenzene (HCB) as a model POP and ryegrass (Lolium perenne L.) as a model plant growing in soils amended with wheat straw biochar. HCB dissipation was significantly enhanced in the rhizosphere and near rhizosphere soils, with the greatest dissipation in the 2 mm near rhizosphere. This enhanced HCB dissipation likely resulted from (i) increased bioavailability of immobilized HCB and (ii) enhanced microbial activities, both of which were induced by ryegrass root exudates. As a major component of ryegrass root exudates, oxalic acid suppressed HCB sorption to biochar and stimulated HCB desorption from biochar and biochar-amended soils, thus increasing the bioavailability of HCB. High-throughput sequencing results revealed that the 2 mm near rhizosphere soil showed the lowest bacterial diversity due to the increased abundance of some genera (e.g., Azohydromonas, Pseudomonas, Fluviicola, and Sporocytophaga). These bacteria were likely responsible for the enhanced degradation of HCB as their abundance was exponentially correlated with HCB dissipation. The results from this study suggest that the biochar-plant tandem approach could be an effective strategy for remediating soils contaminated with semi/volatile organic contaminants.
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Affiliation(s)
- Yang Song
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing 210008, PR China
| | - Yang Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing 210008, PR China
| | | | - Fang Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing 210008, PR China
| | - Yongrong Bian
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing 210008, PR China
| | | | - Xin Jiang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences , 71 East Beijing Road, Nanjing 210008, PR China
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23
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Wang P, Yin Y, Guo Y, Wang C. Preponderant adsorption for chlorpyrifos over atrazine by wheat straw-derived biochar: experimental and theoretical studies. RSC Adv 2016. [DOI: 10.1039/c5ra24248g] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
In competitive sorption, WS750 prefers to adsorb chlorpyrifos over atrazine since that chlorpyrifos has stronger pi–pi interaction with WS750 (23.68 kcal mol−1) and larger lipophilicity (log P= 4.7) than that (22.70 kcal mol−1, log P= 2.7) of atrazine.
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Affiliation(s)
- Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Yayun Yin
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
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24
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Wang P, Wu C, Guo Y, Wang C. Experimental and theoretical studies on methylene blue and methyl orange sorption by wheat straw-derived biochar with a large surface area. Phys Chem Chem Phys 2016; 18:30196-30203. [DOI: 10.1039/c6cp04625h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MB hydrolyzes in water and the existing forms in water include both the well-accepted MB+ and the hydrolyzed form of MB+.
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Affiliation(s)
- Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Chuangfei Wu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P. R. China
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25
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He L, Fan S, Müller K, Hu G, Huang H, Zhang X, Lin X, Che L, Wang H. Biochar reduces the bioavailability of di-(2-ethylhexyl) phthalate in soil. CHEMOSPHERE 2016; 142:24-27. [PMID: 26037111 DOI: 10.1016/j.chemosphere.2015.05.064] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 05/13/2015] [Indexed: 06/04/2023]
Abstract
A pot experiment was conducted to evaluate the effect of biochars on the bioavailability of di-(2-ethylhexyl) phthalate (DEHP) in two soils using Brassica chinensis L. as an indicator plant. The residual concentrations of DEHP tended to be higher in the biochar-amended soils than in the control soils. They were lower (p<0.05) in the high organic carbon content soil (HOC; 2.2%C) than in the low organic carbon content soil (LOC; 0.35%C). The DEHP concentrations in plant shoots grown in the HOC soils were lower than those in the LOC soils (p<0.05). Compared to the control, the biochar addition decreased the DEHP concentrations in shoots grown in the LOC soils; whereas there was no significant difference in the HOC soils. Our results showed that soil OC content as well as biochar properties are the key factors influencing the bioavailability of DEHP in soils.
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Affiliation(s)
- Lizhi He
- Zhejiang Provincial Key Laboratory of Soil Contamination Bioremediation, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China
| | - Shiliang Fan
- School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China
| | - Karin Müller
- The New Zealand Institute for Plant and Food Research Limited, Ruakura Research Centre, Private Bag 3123, Hamilton, New Zealand
| | - Guotao Hu
- School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China
| | - Huagang Huang
- School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; Yancao Production Technology Center, Bijie Yancao Company of Guizhou Province, Bijie 551700, China.
| | - Xiaokai Zhang
- School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China
| | - Xiaoming Lin
- Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan City, Guangdong 523169, China
| | - Lei Che
- School of Engineering, Huzhou University, Huzhou, Zhejiang 313000, China
| | - Hailong Wang
- Zhejiang Provincial Key Laboratory of Soil Contamination Bioremediation, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan City, Guangdong 523169, China.
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26
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Song Y, Wang F, Kengara FO, Bian Y, Yang X, Gu C, Ye M, Jiang X. Does powder and granular activated carbon perform equally in immobilizing chlorobenzenes in soil? ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2015; 17:74-80. [PMID: 25406989 DOI: 10.1039/c4em00486h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The objective of this study is to compare the efficacies of powder activated carbon (PAC) and granular activated carbon (GAC) as amendments for the immobilization of volatile compounds in soil. Soil artificially-spiked with chlorobenzenes (CBs) was amended with either PAC or GAC to obtain an application rate of 1%. The results showed that the dissipation and volatilization of CBs from the amended soil significantly decreased compared to the unamended soil. The bioavailabilities of CBs, which is expressed as butanol extraction and earthworm accumulation, were significantly reduced in PAC and GAC amended soils. The lower chlorinated and hence more volatile CBs experienced higher reductions in both dissipation and bioavailability in the amended soils. The GAC and PAC equally immobilized more volatile CBs in soil. Therefore, it could be concluded that along with environmental implication, applying GAC was the more promising approach for the effective immobilization of volatile compounds in soil.
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Affiliation(s)
- Yang Song
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China.
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27
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Wang P, Yin Y, Guo Y, Wang C. Removal of chlorpyrifos from waste water by wheat straw-derived biochar synthesized through oxygen-limited method. RSC Adv 2015. [DOI: 10.1039/c5ra10487d] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Wheat straw-derived biochar at 750 °C (WS750) can effectively adsorb chlorpyrifos and the driving force is most likely attributed to the π⋯π stack between the aromatic ring of chlorpyrifos and these aromatic areas on WS750 surface.
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Affiliation(s)
- Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P.R. China
| | - Yayun Yin
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P.R. China
| | - Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P.R. China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- College of Environment
- Hohai University
- P.R. China
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28
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Sun K, Kang M, Zhang Z, Jin J, Wang Z, Pan Z, Xu D, Wu F, Xing B. Impact of deashing treatment on biochar structural properties and potential sorption mechanisms of phenanthrene. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:11473-81. [PMID: 24025082 DOI: 10.1021/es4026744] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Knowledge of the mineral effects of biochars on their sorption of hydrophobic organic contaminants (HOCs) is limited. Sorption of phenanthrene (PHE) by plant-residue derived biochars (PLABs) and animal waste-derived biochars (ANIBs) obtained at two heating treatment temperatures (HTTs) (450 and 600 °C) and their corresponding deashed biochars was investigated. The decreased surface polarity and increased bulk polarity of biochars after deashing treatment indicated that abundant minerals of biochars benefit external exposure of polar groups associated organic matter (OM). Organic carbon (OC)-normalized distribution coefficients (K(oc)) of PHE by biochars generally increased after deashing, likely due to enhancement of favorable and hydrophobic sorption sites caused by mineral removal. Positive correlation between PHE log K(oc) by PLABs and bulk polarity combined with negative correlation between PHE log K(oc) values by ANIBs and surface polarity suggested PLABs and ANIBs have different sorption mechanisms, probably attributed to their large variation of ash content because minerals influenced OM spatial arrangement within biochars. Results of this work could help us better understand the impact of minerals, bulk/surface polarity, and sorption domain arrangement of biochars on their HOCs sorption and predict the fate of HOCs in soils after biochar application.
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Affiliation(s)
- Ke Sun
- State Key Laboratory of Water Simulation, School of Environment, Beijing Normal University , Beijing 100875, China
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