Removal of Arsenic by Wheat Straw Biochar from Soil

被引：0
作者：
Abhishek Kumar
Tanushree Bhattacharya
机构：
[1] Birla Institute of Technology,Department of Civil and Environmental Engineering
[2] Mesra,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2022年 / 108卷
关键词：
Arsenic; Biochar; Remediation; Sorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Biochar prepared from wheat straw (Triticum aestivum) at different pyrolysis temperatures was screened, followed by its application to soil for arsenic removal in the present study. Characterization of biochar by Field emission scanning electron microscope studies and Fourier thermal Infrared imaging showed smooth and porous biochar surface and abundance of surface functional groups. A low value of H/C was obtained by CHNS analyzer, indicating high stability of biochar. The surface area was 15.86 m2/g on an average. Batch sorption experiments were carried out to optimize conditions for arsenic sorption. Maximum arsenic removal of 83.7% was obtained when applied at a 7.5% dose for a contact time of 60 min at 25 °C. Isotherm, kinetic and thermodynamic studies revealed the feasibility of sorption and removal of arsenic through physisorption, chemisorption, ion exchange, and diffusion.
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页码：415 / 422
页数：7
相关论文
共 172 条
[1]  
Agrafioti E(2014)Arsenic and chromium removal from water using biochars derived from rice husk, organic solid wastes and sewage sludge J Environ Manage 133 309-314
[2]  
Kalderis D(2014)Biochar as a sorbent for contaminant management in soil and water: a review Chemosphere 99 19-33
[3]  
Diamadopoulos E(2016)Groundwater arsenic contamination and potential health risk assessment of gangetic plains of Jharkhand, India Expo Health 8 125-142
[4]  
Ahmad M(2018)Adsorption of As(III) and As(V) from aqueous solution by modified Appl Water Sci 8 1-14
[5]  
Rajapaksha AU(2010) (golden shower) biochar Iraq E-Journal Chem 7 839178-18
[6]  
Lim JE(2019)The Geoaccumulation Index of Some Heavy Metals in Al-Hawizeh Marsh Int J Biomater 2019 12-480
[7]  
Alam MO(2017)Potentials of biochars derived from bamboo leaf biomass as energy sources: effect of temperature and time of heating J Chem 2017 3039817-603
[8]  
Shaikh WA(2011)Modelling and interpretation of adsorption isotherms Environ Pollut 159 474-12
[9]  
Chakraborty S(2013)The immobilisation and retention of soluble arsenic, cadmium and zinc by biochar Sci Total Environ 454–455 598-166
[10]  
Avishek K(2015)Biochar addition to an arsenic contaminated soil increases arsenic concentrations in the pore water but reduces uptake to tomato plants ( Water Air Soil Pollut 226 1-30
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