Search results for " TPH"

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Performance of membrane bioreactor (MBR) systems for the treatment of shipboard slops: Assessment of hydrocarbon biodegradation and biomass activity …

2015

In order to prevent hydrocarbon discharge at sea from ships, the International Maritime Organization (IMO) enacted the MARPOL 73/78 convention in which any oil and oil residue discharged in wastewater streams must contain less than 5. ppm hydrocarbons. Effective treatment of this petroleum-contaminated water is essential prior to its release into the environment, in order to prevent pollution problem for marine ecosystems as well as for human health. Therefore, two bench scale membrane bioreactors (MBRs) were investigated for hydrocarbon biodegradation. The two plants were initially fed with synthetic wastewater characterised by an increasing salinity, in order to enhance biomass acclimatio…

PollutionSalinityEnvironmental EngineeringHydrocarbonmedia_common.quotation_subjectOceans and SeaHealth Toxicology and MutagenesisOceans and SeasTPHBioreactorPilot ProjectsBiological Oxygen Demand AnalysisMB-MBR; MBR; Salinity; Slops; TPH; Biological Oxygen Demand Analysis; Carbon; Hydrocarbons; Membranes Artificial; Oceans and Seas; Pilot Projects; Plants; Waste Disposal Fluid; Water Pollutants Chemical; Biodegradation Environmental; Biomass; Bioreactors; Salinity; Environmental Engineering; Environmental Chemistry; Waste Management and Disposal; Pollution; Health Toxicology and MutagenesisMembrane bioreactorWaste Disposal FluidMBRBiomaBioreactorsBioreactorEnvironmental ChemistryPilot ProjectMB-MBRSlopBiomassWaste Management and Disposalmedia_commonchemistry.chemical_classificationBiological Oxygen Demand AnalysisSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleEnvironmental engineeringMembranes ArtificialPlantBiodegradationPlantsPollutionCarbonHydrocarbonsSalinityHydrocarbonBiodegradation EnvironmentalchemistryWastewaterEnvironmental scienceBiological Oxygen Demand AnalysiWater Pollutants Chemical
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Total petroleum hydrocarbons (TPH) determination in surfactant stabilized marine water emulsions

2022

Bilge waters are wastewaters produced on boats during navigation and usually contain hydrocarbons and oils. They cannot be released into the sea if not below certain hydrocarbon concentration limits set by current legislation. Surfactants are often used to improve the solubility of petroleum hydrocarbons in water and in this work, the analytical approach proposed is suitable to determine accurately the concentration of hydrocarbons in surfactant-rich waters, as found in bilge water or similar wastewater. The method relies on the surfactant precipitation by addition of potassium and calcium salts, which also promote TPH extraction through a “salting out” effect. This allows for an accurate d…

Total petroleum hydrocarbons TPH bilge water surfactants SDS SDBS mass spectrometryOrganic ChemistryArkivoc
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