The application of water washing technology for recycling an organic composite solvent consisting of hexane and pentane (4:1; TU-A solvent) was investigated for extracting total petroleum hydrocarbons (TPH) from contaminated soil. The effects of water volume, water temperature, washing time and initial concentration of solvent were evaluated using orthogonal experiments followed by single facto...

Abstract The clay with high oil content form soil lumps, which is hard for microbes to repair. In this paper, the bioaugmentation and biostimulation technology were applied improve bioremediation effect of content, that modified by local cow dung sandy soil, ecological toxicity after restoration was further analyzed. After 53 days bioremediation, degradation efficiency respect total petroleum h...

Buried hydrocarbon deposits, such as liquid petroleum, represent an abundant source of reduced carbon for microbes. It is not surprising therefore that many organisms have adapted to an oily, anaerobic life deep underground, often at high temperatures and pressures, and that those organisms have had, and in some cases continue to have, an effect on the quality and recovery of the earth’s dimini...

INTRODUCTION 180 CHEMISTRY OF PETROLEUM BIODEGRADATION . 180 Degradation of Individual Hydrocarbons ...... 180 Degradation of Hydrocarbons Within Petroleum Mixtures ..... 182 TAXONOMIC RELATIONSHIPS OF HYDROCARBON-UTILIZING MICROORGANISMS .............................. ... .. 184 DISTRIBUTION OF HYDROCARBON-UTILIZING MICROORGANISMS ...... 186 ENVIRONMENTAL FACTORS INFLUENCING BIODEGRADATION OF ...

today oil removal from contaminated soil by new methods such as bioremediation is necessary.  in this paper, the effect of chemical fertilizers and aeration on bioremediation of oil-contaminated soil has been investigated. also the control group, (bioremediation of petroleum hydrocarbons in contaminated soil without treatment by chemical fertilizers and aeration treatment was examined. the cond...

Various inorganic and organic pollutants in industrial soils may adversely affect soil microorganisms and terrestrial ecosystem functioning. The aim of the study was to explore the relationship between the microbial activity, microbial biomass, and functional diversity of soil bacteria and the metals and total petroleum hydrocarbons (TPHs) in the Upper Silesian Industrial Region (Poland). We co...

Bioremediation of diesel oil in soil can occur by natural attenuation, or treated by biostimulation or bioaugmentation. In this study we evaluated all three technologies on the degradation of total petroleum hydrocarbons (TPH) in soil. In addition, the number of diesel-degrading microorganisms present and microbial activity as indexed by the dehydrogenase assay were monitored. Soils contaminate...