Biochar as a sorbent for contaminant management in soil and water: A review

被引：3244

作者：

Ahmad, Mahtab ^{[1
,2
]}

Rajapaksha, Anushka Upamali ^{[1
]}

Lim, Jung Eun ^{[1
]}

Zhang, Ming ^{[3
]}

Bolan, Nanthi ^{[4
]}

Mohan, Dinesh ^{[5
]}

Vithanage, Meththika ^{[6
]}

Lee, Sang Soo ^{[1
]}

Ok, Yong Sik ^{[1
,3
,7
]}

机构：

[1] Kangwon Natl Univ, Korea Biochar Res Ctr, Chunchon 200701, South Korea

[2] PMAS Arid Agr Univ, Univ Inst Biochem & Biotechnol, Rawalpindi, Pakistan

[3] China Jiliang Univ, Dept Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China

[4] Univ S Australia, Ctr Environm Risk Assessment & Remediat, Mawson Lakes, SA, Australia

[5] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India

[6] Inst Fundamental Studies, Chem & Environm Syst Modeling Res Grp, Kandy, Sri Lanka

[7] Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2M7, Canada

来源：

CHEMOSPHERE | 2014年 / 99卷

基金：

新加坡国家研究基金会;

关键词：

Black carbon; Charcoal; Activated carbon; Slow pyrolysis; Bioavailability; Amendment; BLACK CARBON; PYROLYSIS TEMPERATURE; HEAVY-METALS; ADSORPTIVE PROPERTIES; CHEMICAL-PROPERTIES; ACTIVATED CARBON; AQUEOUS-SOLUTION; SEWAGE-SLUDGE; MUSSEL SHELL; COW BONE;

D O I：

10.1016/j.chemosphere.2013.10.071

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biochar is a stable carbon-rich by-product synthesized through pyrolysis/carbonization of plant- and animal-based biomass. An increasing interest in the beneficial application of biochar has opened up multidisciplinary areas for science and engineering. The potential biochar applications include carbon sequestration, soil fertility improvement, pollution remediation, and agricultural by-product/waste recycling. The key parameters controlling its properties include pyrolysis temperature, residence time, heat transfer rate, and feedstock type. The efficacy of biochar in contaminant management depends on its surface area, pore size distribution and ion-exchange capacity. Physical architecture and molecular composition of biochar could be critical for practical application to soil and water. Relatively high pyrolysis temperatures generally produce biochars that are effective in the sorption of organic contaminants by increasing surface area, microporosity, and hydrophobicity; whereas the biochars obtained at low temperatures are more suitable for removing inorganic/polar organic contaminants by oxygen-containing functional groups, electrostatic attraction, and precipitation. However, due to complexity of soil-water system in nature, the effectiveness of biochars on remediation of various organic/inorganic contaminants is still uncertain. In this review, a succinct overview of current biochar use as a sorbent for contaminant management in soil and water is summarized and discussed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：19 / 33

页数：15

共 125 条

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