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Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions

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Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions. / Xiang, Lei; Zeng, Li Juan; Du, Pei Pei et al.
In: Science of the Total Environment, Vol. 702, 134878, 01.02.2020.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Xiang, L, Zeng, LJ, Du, PP, Wang, XD, Wu, XL, Sarkar, B, Lü, H, Li, YW, Li, H, Mo, CH, Wang, H & Cai, QY 2020, 'Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions', Science of the Total Environment, vol. 702, 134878. https://doi.org/10.1016/j.scitotenv.2019.134878

APA

Xiang, L., Zeng, L. J., Du, P. P., Wang, X. D., Wu, X. L., Sarkar, B., Lü, H., Li, Y. W., Li, H., Mo, C. H., Wang, H., & Cai, Q. Y. (2020). Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions. Science of the Total Environment, 702, Article 134878. https://doi.org/10.1016/j.scitotenv.2019.134878

Vancouver

Xiang L, Zeng LJ, Du PP, Wang XD, Wu XL, Sarkar B et al. Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions. Science of the Total Environment. 2020 Feb 1;702:134878. Epub 2019 Nov 2. doi: 10.1016/j.scitotenv.2019.134878

Author

Xiang, Lei ; Zeng, Li Juan ; Du, Pei Pei et al. / Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions. In: Science of the Total Environment. 2020 ; Vol. 702.

Bibtex

@article{a5e7bfb7f0cd4c5290325eaf0096714c,
title = "Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions",
abstract = "Sorption of organic contaminants by biochar greatly affects their bioavailability and fate in soils. Nevertheless, very little information is available regarding the effects of biochar on sorption and desorption of organic contaminants in different soil particle-size fractions. In this study, di-n-butyl phthalate (DBP), a prevalent organic contaminant in agricultural soils, was taken as a model contaminant. The effects of biochar on DBP sorption and desorption in six particle-size fractions (i.e., coarse sand, fine sand, coarse silt, fine silt, clay, and humic acid fractions) of paddy soil were investigated using batch sorption-desorption experiments. A straw-derived biochar with high specific surface area (116 m2/g) and high content of organic matter (OM) rich in aromatic carbon (67%) was prepared. Addition of this biochar (1% and 5%) significantly promoted the sorption and retention of DBP in all the paddy soil particle-size fractions at environmentally relevant DBP concentrations (2–12 mg/L) with 1.2–132-fold increase of the Kd values. With increasing addition rates of biochar, DBP retention by the biochar enhanced. The biochar's effectiveness was remarkably influenced by the physicochemical properties of the soil particle-size fractions, especially, the OM contents and pore size showed the most striking effects. A parameter (rkd) reflecting the biochar's effectiveness showed negative and positive correlations with OM contents and pore size of the soil particle-size fractions, respectively. Accordingly, strong effect of the biochar was found in the soil fractions with low OM contents and high pore size. The findings of this study gave insight into the effects and influencing factors of biochar on sorption and desorption of organic contaminants in soils at scale of various particle-size factions.",
keywords = "Agricultural soil, Biochar, Particle-size fraction, Phthalate, Sorption",
author = "Lei Xiang and Zeng, {Li Juan} and Du, {Pei Pei} and Wang, {Xiao Dan} and Wu, {Xiao Lian} and Binoy Sarkar and Huixiong L{\"u} and Li, {Yan Wen} and Hui Li and Mo, {Ce Hui} and Hailong Wang and Cai, {Quan Ying}",
year = "2020",
month = feb,
day = "1",
doi = "10.1016/j.scitotenv.2019.134878",
language = "English",
volume = "702",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Effects of rice straw biochar on sorption and desorption of di-n-butyl phthalate in different soil particle-size fractions

AU - Xiang, Lei

AU - Zeng, Li Juan

AU - Du, Pei Pei

AU - Wang, Xiao Dan

AU - Wu, Xiao Lian

AU - Sarkar, Binoy

AU - Lü, Huixiong

AU - Li, Yan Wen

AU - Li, Hui

AU - Mo, Ce Hui

AU - Wang, Hailong

AU - Cai, Quan Ying

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Sorption of organic contaminants by biochar greatly affects their bioavailability and fate in soils. Nevertheless, very little information is available regarding the effects of biochar on sorption and desorption of organic contaminants in different soil particle-size fractions. In this study, di-n-butyl phthalate (DBP), a prevalent organic contaminant in agricultural soils, was taken as a model contaminant. The effects of biochar on DBP sorption and desorption in six particle-size fractions (i.e., coarse sand, fine sand, coarse silt, fine silt, clay, and humic acid fractions) of paddy soil were investigated using batch sorption-desorption experiments. A straw-derived biochar with high specific surface area (116 m2/g) and high content of organic matter (OM) rich in aromatic carbon (67%) was prepared. Addition of this biochar (1% and 5%) significantly promoted the sorption and retention of DBP in all the paddy soil particle-size fractions at environmentally relevant DBP concentrations (2–12 mg/L) with 1.2–132-fold increase of the Kd values. With increasing addition rates of biochar, DBP retention by the biochar enhanced. The biochar's effectiveness was remarkably influenced by the physicochemical properties of the soil particle-size fractions, especially, the OM contents and pore size showed the most striking effects. A parameter (rkd) reflecting the biochar's effectiveness showed negative and positive correlations with OM contents and pore size of the soil particle-size fractions, respectively. Accordingly, strong effect of the biochar was found in the soil fractions with low OM contents and high pore size. The findings of this study gave insight into the effects and influencing factors of biochar on sorption and desorption of organic contaminants in soils at scale of various particle-size factions.

AB - Sorption of organic contaminants by biochar greatly affects their bioavailability and fate in soils. Nevertheless, very little information is available regarding the effects of biochar on sorption and desorption of organic contaminants in different soil particle-size fractions. In this study, di-n-butyl phthalate (DBP), a prevalent organic contaminant in agricultural soils, was taken as a model contaminant. The effects of biochar on DBP sorption and desorption in six particle-size fractions (i.e., coarse sand, fine sand, coarse silt, fine silt, clay, and humic acid fractions) of paddy soil were investigated using batch sorption-desorption experiments. A straw-derived biochar with high specific surface area (116 m2/g) and high content of organic matter (OM) rich in aromatic carbon (67%) was prepared. Addition of this biochar (1% and 5%) significantly promoted the sorption and retention of DBP in all the paddy soil particle-size fractions at environmentally relevant DBP concentrations (2–12 mg/L) with 1.2–132-fold increase of the Kd values. With increasing addition rates of biochar, DBP retention by the biochar enhanced. The biochar's effectiveness was remarkably influenced by the physicochemical properties of the soil particle-size fractions, especially, the OM contents and pore size showed the most striking effects. A parameter (rkd) reflecting the biochar's effectiveness showed negative and positive correlations with OM contents and pore size of the soil particle-size fractions, respectively. Accordingly, strong effect of the biochar was found in the soil fractions with low OM contents and high pore size. The findings of this study gave insight into the effects and influencing factors of biochar on sorption and desorption of organic contaminants in soils at scale of various particle-size factions.

KW - Agricultural soil

KW - Biochar

KW - Particle-size fraction

KW - Phthalate

KW - Sorption

U2 - 10.1016/j.scitotenv.2019.134878

DO - 10.1016/j.scitotenv.2019.134878

M3 - Journal article

C2 - 31726350

AN - SCOPUS:85074779303

VL - 702

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 134878

ER -