Biodegradation of toluene and fish oil in impacted soil using chemical and biological surfactants

Quimica nova

Cerqueira, Vanessa Sacramento¹  Costa, Jorge Alberto Vieira¹ 

[1] Universidade Federal do Rio Grande, Rio Grande, Brasil

关键词: biodegradation;    biosurfactants;    soil.;   

DOI  :  10.1590/S0100-40422009000200024

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The process of biodegradation of soils contaminated by animal (raw fish oil) and mineral (toluene) origin compounds was studied, verifying the influence of adding biosurfactants and chemical surfactants and nutrients in the media. The highest removal rate of fish oil was 59.47% obtained in the experiments containing biosurfactant and biostimulate in 90 days process. The highest removal rate of toluene was achieved in 14 days for experiments containing biosurfactant, chemical spreading and biosurfactant with biostimulation, showing great influence of evaporation on the process. The use of surfactants has shown to increase the contaminant bioavailability due to its higher degradation rate.

【 授权许可】

CC BY