Both the Massachusetts Department of Environmental Protection (MADEP) and the Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) developed fraction-based approaches for assessing human health risks posed by total petroleum hydrocarbon (TPH) mixtures in the environment. Both organizations defined TPH fractions based on their expected environmental fate and by analytical chemical methods...

Petroleum hydrocarbon residues in weathered soils may pose risks to humans through the ingestion pathway. To understand the factors controlling their gastrointestinal (GI) absorption, a newly developed experimental extraction protocol was used to model the GI solubility of total petroleum hydrocarbon (TPH) residues in highly weathered soils from different sites. The GI solubility of TPH residue...

Petroleum hydrocarbon profiles of water and sediment samples of Algoa Bay in the Eastern Cape Province of South Africa were assessed using standard analytical procedures. Water (from surface and bottom levels) and sediment samples were collected from five locations in the bay from February to June 2016. Extraction of the petroleum hydrocarbons from the water and sediment samples collected was a...

total petroleum hydrocarbon ( tph ) are environmental contaminants that are released into the marine environment through oil spills, industrial and domestic activities. tph are readily transformed into more hydrophilic metabolites, which are accumulated in bile. thus fish bile can be used as a biomarker of exposure of fish to tph in the marine environment. in this study several stations were se...

Petroleum hydrocarbon status of the Buffalo River Estuary in East London, South Africa, was evaluated from January to May, 2016. Surface water and sediment samples were collected from five points in the estuary and extracted using standard methods. The extracts were subsequently analyzed by gas chromatography-flame ionization detection. Results showed that total petroleum hydrocarbon (TPH) vari...

Soil samples taken from a contaminated site in Northern Quebec, Canada, exhibited a low capacity for biodegradation of total petroleum hydrocarbons (TPH), despite a high capacity for the mineralization of aromatic hydrocarbons and a low toxicity of soil leachates as measured by Microtox assay. Toxicity assays directly performed on surface soil, including earthworm mortality and barley seedling ...

Treatment of hydrocarbon-rich industrial wastewater in bioreactors using heterotrophic microorganisms is often associated with various operational problems. In this study, a consortium of phototrophic microorganisms and a bacterium is developed on the discs of a rotating biological contactor (RBC) for treatment of wastewater containing diesel oil. The reactor was fed with oil degrading bacteriu...

Used oil waste is often dumped on the ground around workshop, causing soil pollution which can reduce function of soil. The most difficult contaminants in used to decompose are hydrocarbon compounds, highly toxic, polycyclic aromatic hydrocarbons (PAHs). concentration a sample determined by measuring total petroleum (TPH) concentration. This study was conducted determine germination ability Hel...

The feasibility of total petroleum hydrocarbon-contaminated (TPH) soil remediation was studied using persulfate oxidation. Factors tested included type of activator, persulfate concentration, number of persulfate applications, and reaction time. Probe chemicals were used to study effi ciency of the persulfate oxidation mechanism. The best activation method used Fe2+, which achieved 40.8% TPH de...

P.A. Kulakow and L. Erickson Department of Agronomy, Throckmorton Hall, Kansas State University, Manhattan, KS 66506; Phone: (785) 532-7239; e-mail: [email protected]. Department of Chemical Engineering, Durland Hall, Kansas State University, Manhattan, KS 66506; Phone: (785) 5324313; e-mail: [email protected]. ABSTRACT The TPH (total petroleum hydrocarbon) subgroup of the RTDF (Remediation Technolo...