Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water

被引：996

作者：

Ahmad, Mahtab ^{[1
]}

Lee, Sang Soo ^{[1
]}

Dou, Xiaomin ^{[2
]}

Mohan, Dinesh ^{[3
]}

Sung, Jwa-Kyung ^{[4
]}

Yang, Jae E. ^{[1
]}

Ok, Yong Sik ^{[1
]}

机构：

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

[2] Beijing Forestry Univ, Dept Environm Sci & Engn, Beijing 100083, Peoples R China

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

[4] RDA, Natl Acad Agr Sci, Suwon 441707, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 118卷

基金：

新加坡国家研究基金会;

关键词：

Crop residue; Biomass; Carbonization; Proximate analysis; Agricultural waste; RESIDUE; AVAILABILITY; CONTAMINANTS; SORPTION; CARBON; PHASE; SOILS;

D O I：

10.1016/j.biortech.2012.05.042

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Conversion of crop residues into biochars (BCs) via pyrolysis is beneficial to environment compared to their direct combustion in agricultural field. Biochars developed from soybean stover at 300 and 700 degrees C (S-BC300 and S-BC700, respectively) and peanut shells at 300 and 700 degrees C (P-BC300 and P-BC700, respectively) were used for the removal of trichloroethylene (ICE) from water. Batch adsorption experiments showed that the TCE adsorption was strongly dependent on the BCs properties. Linear relationships were obtained between sorption parameters (K-M and S-M)and molar elemental ratios as well as surface area of the BCs. The high adsorption capacity of BCs produced at 700 degrees C was attributed to their high aromaticity and low polarity. The efficacy of S-BC700 and P-BC700 for removing TCE from water was comparable to that of activated carbon (AC). Pyrolysis temperature influencing the BC properties was a critical factor to assess the removal efficiency of ICE from water. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：536 / 544

页数：9

共 35 条

[1] Effects of soil dilution and amendments (mussel shell, cow bone, and biochar) on Pb availability and phytotoxicity in military shooting range soil [J].