Performance evaluation of rhamnolipids addition for the biodegradation and bioutilization of petroleum pollutants during the composting of organic wastes with waste heavy oil

被引：19

作者：

Bao, Jianfeng ^{[1
]}

Lv, Yuanfei ^{[1
]}

Liu, Chenchen ^{[1
]}

Li, Shuangxi ^{[1
]}

Yin, Zhihong ^{[1
]}

Yu, Yunjiang ^{[2
]}

Zhu, Liandong ^{[1
]}

机构：

[1] Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm B, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China

[2] Minist Ecol & Environm, State Environm Protect Key Lab Environm Pollut Hl, South China Inst Environm Sci, Guangzhou 510655, Peoples R China

来源：

ISCIENCE | 2022年 / 25卷 / 06期

基金：

国家重点研发计划;

关键词：

TEMPERATURE; DEGRADATION; BIOSTIMULATION; HYDROCARBONS; SOIL;

D O I：

10.1016/j.isci.2022.104403

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Environmental pollution caused by petroleum hydrocarbons is being paid more and more attention worldwide. Surfactants are able to improve the solubility of petroleum hydrocarbons, but their effects on petroleum hydrocarbon degradation in composting systems are still unclear. In this study, the effects on microbial community succession were investigated by adding petroleum hydrocarbons and rhamnolipids during composting of organic wastes. The results showed that the compost and the addition of rhamnolipids could effectively reduce the petroleum hydrocarbon content with an efficiency of 73.52%, compared to 53.81% for the treatment without addition. Network analyses and Structural Equation Model suggested that there were multiple potential petroleum degraders microbes that might be regulated by nitrogen. The findings in this study can also provide an implication for the treatment of petroleum hydrocarbon pollutants from oil-polluted soil, and the technology can be potentially applied on an industrial scale in practice.

引用

页数：14

共 44 条

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