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

Mahtab Ahmad; Sang Soo Lee; Xiaomin Dou; Dinesh Mohan; Jwa Kyung Sung; Jae E. Yang; Yong Sik Ok

doi:10.1016/j.biortech.2012.05.042

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

Mahtab Ahmad, Sang Soo Lee, Xiaomin Dou, Dinesh Mohan, Jwa Kyung Sung, Jae E. Yang, Yong Sik Ok

Research output: Contribution to journal › Article

460 Citations (Scopus)

Abstract

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. °C (S-BC300 and S-BC700, respectively) and peanut shells at 300 and 700. °C (P-BC300 and P-BC700, respectively) were used for the removal of trichloroethylene (TCE) 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. °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 TCE from water.

Original language	English
Pages (from-to)	536-544
Number of pages	9
Journal	Bioresource technology
Volume	118
DOIs	https://doi.org/10.1016/j.biortech.2012.05.042
Publication status	Published - 2012 Aug 1
Externally published	Yes

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Keywords

Agricultural waste
Biomass
Carbonization
Crop residue
Proximate analysis

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

Cite this

Ahmad, M., Lee, S. S., Dou, X., Mohan, D., Sung, J. K., Yang, J. E., & Ok, Y. S. (2012). Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water. Bioresource technology, 118, 536-544. https://doi.org/10.1016/j.biortech.2012.05.042

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keywords = "Agricultural waste, Biomass, Carbonization, Crop residue, Proximate analysis",

author = "Mahtab Ahmad and Lee, {Sang Soo} and Xiaomin Dou and Dinesh Mohan and Sung, {Jwa Kyung} and Yang, {Jae E.} and Ok, {Yong Sik}",

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AU - Ahmad, Mahtab

AU - Lee, Sang Soo

AU - Dou, Xiaomin

AU - Mohan, Dinesh

AU - Sung, Jwa Kyung

AU - Yang, Jae E.

AU - Ok, Yong Sik

PY - 2012/8/1

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N2 - 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. °C (S-BC300 and S-BC700, respectively) and peanut shells at 300 and 700. °C (P-BC300 and P-BC700, respectively) were used for the removal of trichloroethylene (TCE) 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. °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 TCE from water.

AB - 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. °C (S-BC300 and S-BC700, respectively) and peanut shells at 300 and 700. °C (P-BC300 and P-BC700, respectively) were used for the removal of trichloroethylene (TCE) 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. °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 TCE from water.

KW - Agricultural waste

KW - Biomass

KW - Carbonization

KW - Crop residue

KW - Proximate analysis

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10.1016/j.biortech.2012.05.042