Remediation of petroleum hydrocarbon contaminated soil by Trametes versicolor and characterization of greenhouse gas release
Petroleum hydrocarbons are difficult to degrade in the environment,and physicochemical remediation techniques are costly,energy-intensive,and not conducive to environmental restoration.The Trametes versicolor can homogenize the soil and is a potential microorganism for petroleum hydrocarbon bioremediation.In this study,different types of petroleum hydrocarbon pollution were the research object,and the degradation rate was used as the assessment index to investigate the degradation performance of Trametes versicolor on different types of petroleum hydrocarbons.On this basis,the bioremediation of petroleum hydrocarbon contaminated soil by Trametes versicolor and the effect on the release of greenhouse gases were investigated to provide theoretical guidance for the application of bioremediation technology to petroleum hydrocarbon contaminated soil.The results showed that Trametes versicolor could effectively degrade different types of petroleum hydrocarbons,n-hexadecane was removed by 53.55％in 4d,and crude oil was removed by 21.61％in 9d.The remediation of petroleum hydrocarbons in simulated contaminated soil using Trametes versicolor resulted in 32.68％removal of n-hexadecane and 4.84％removal of crude oil after 15d of remediation.In hexadecane-contaminated soil,the pollutants were degraded and released into the environment in the form of CO2 and CH4,while in crude oil-contaminated soil,the release of CH4 was smaller with the release of CO2 and N2O increasing.The results demonstrated the possibility of remediation of different types of petroleum hydrocarbon pollution by Trametes versicolor and provided a theoretical basis for bioremediation with less greenhouse gas release.
petroleum hydrocarbonsoil remediationTrametes versicolorbioremediationgreenhouse gas
万方数据
维普
