标题: Biochar aerogel enhanced remediation performances for heavy oil-contaminated soil through biostimulation strategy

作者: Lv, YF (Lv, Yuanfei); Bao, JF (Bao, Jianfeng); Dang, Y (Dang, Yao); Liu, DY (Liu, Dongyang); Li, TR (Li, Tianrui); Li, SX (Li, Shuangxi); Yu, YJ (Yu, Yunjiang); Zhu, LD (Zhu, Liandong)

来源出版物: JOURNAL OF HAZARDOUS MATERIALS 卷: 443 文献号: 130209 DOI: 10.1016/j.jhazmat.2022.130209 子辑: B 出版年: FEB 5 2023

摘要: Petroleum leakages can seriously damage the soil environment and cause a persistent harm to human health, due to the release of heavy oil pollutants with a high viscosity and high molecular weight. In this paper, biochar aerogel materials were successfully prepared under 600, 700 and 800 celcius (accordingly labeled as 600-aerogel, 700-aerogel and 800-aerogel) with green, sustainable and abundant sisal leaves as raw materials for the reme-diation of heavy oil-contaminated soil. The remediation performances of biochar aerogel supplement for heavy oil-contaminated soil were investigated, while microbial abundance and community structure were character-ized. The degradation efficiency of 600-aerogel, 700-aerogel and 800-aerogel treatments was accordingly 80.69%, 86.04% and 86.62% after 60 days. Apart from adsorption behavior, biostimulation strengthened the degradation efficiency, according to findings from first-order degradation kinetics. Biochar aerogel supplement basically increased genera microbial abundance for Sinomonas, Streptomyces, Sphingomonas and Massilia with petroleum degradation abilities through microorganisms' biostimulation. Sinomonas as the dominant genus with the highest abundance probably contributed much higher capacities to heavy oil degradation. This study can provide an inspiring reference for the development of green carbon-based materials to be applied in heavy oil -contaminated soils through biostimulation mechanisms.

作者关键词: Heavy oil-contaminated soil; Biochar aerogel; Degradation kinetics; Biostimulation; Microbial community

地址: [Lv, Yuanfei; Bao, Jianfeng; Liu, Dongyang; Li, Tianrui; Li, Shuangxi; Zhu, Liandong] Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.

[Dang, Yao; Yu, Yunjiang] South China Inst Environm Sci, Minist Ecol & Environm, State Environm Protect Key Lab Environm Pollut Hlt, Guangzhou 510655, Peoples R China.

[Zhu, Liandong] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn Sc, Wuhan 430079, Peoples R China.

通讯作者地址: Zhu, LD (通讯作者)，Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.

电子邮件地址: ldzhu@whu.edu.cn、

影响因子：14.224