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 | |
| 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
Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water. / Ahmad, Mahtab; Lee, Sang Soo; Dou, Xiaomin; Mohan, Dinesh; Sung, Jwa Kyung; Yang, Jae E.; Ok, Yong Sik.
In: Bioresource Technology, Vol. 118, 01.08.2012, p. 536-544.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water
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
Y1 - 2012/8/1
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
UR - http://www.scopus.com/inward/record.url?scp=84862276333&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862276333&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2012.05.042
DO - 10.1016/j.biortech.2012.05.042
M3 - Article
VL - 118
SP - 536
EP - 544
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -