标题: Petroleum-contaminated soil bioremediation and microbial community succession induced by application of co-pyrolysis biochar amendment: An investigation of performances and mechanisms

作者: Wang, HZ (Wang, Hanzhi); Lv, YF (Lv, Yuanfei); Bao, JF (Bao, Jianfeng); Chen, YY (Chen, Yiyun); Zhu, LD (Zhu, Liandong)

来源出版物: JOURNAL OF HAZARDOUS MATERIALS  卷: 466  文献号: 133600  DOI: 10.1016/j.jhazmat.2024.133600  Published Date: 2024 MAR 15  

摘要: This study aimed to remediate petroleum-contaminated soil using co-pyrolysis biochar derived from rice husk and cellulose. Rice husk and cellulose were mixed in various weight ratios (0:1, 1:0, 1:1, 1:3 and 3:1) and pyrolyzed under 500 degrees C. These biochar variants were labeled as R0C1, R1C0, R1C1, R1C3 and R3C1, respectively. Notably, the specific surface area and carbon content of the co- pyrolysis biochar increased, potentially promoting the growth and colonization of soil microorganisms. On the 60th day, the microbial control group achieved a 46.69% removal of pollutants, while the addition of R0C1, R1C0, R1C3, R1C1 and R3C1 resulted in removals of 70.56%, 67.01%, 67.62%, 68.74% and 67.30%, respectively. In contrast, the highest efficiency observed in the abiotic treatment group was only 24.12%. This suggested that the removal of petroleum pollutants was an outcome of the collaborative influence of co-pyrolysis biochar and soil microorganisms. Furthermore, the abundance of Proteobacteria, renowned for its petroleum degradation capability, obviously increased in the treatment group with the addition of co -pyrolysis biochar. This demonstrated that co -pyrolysis biochar could notably stimulate the growth of functionally associated microorganisms. This research confirmed the promising application of co -pyrolysis biochar in the remediation of petroleum -contaminated soil.

作者关键词: Co -pyrolysis biochar; Petroleum -contaminated soil; Removal efficiency; Microbial community succession; Prediction functional gene

地址: [Wang, Hanzhi; Lv, Yuanfei; Bao, Jianfeng; Chen, Yiyun; 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.

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

通讯作者地址: Chen, YY; 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.

Zhu, LD (通讯作者)，Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430079, Peoples R China.

电子邮件地址: cjdxwhz@163.com; ldzhu@whu.edu.cn

影响因子：13.6