Rapid persulfate oxidation predicts PAH bioavailability in soils and sediments

Article Abstract:

Researchers from The Netherlands developed a rapid method of predicting the bioavailability of polycyclic aromatic hydrocarbon in soils and sediments through the oxidation of persulfate.

Netherlands, Persulfates, Sulfur industry

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Oxidation of 4-chloro-3-methylphenol in pressurized hot water/supercritical water with potassium persulfate as oxidant

Article Abstract:

A continuous flow system is used to measure the ability of potassium persulfate to oxidize 4-chloro-3-methylphenol. Graphs show the conversion of 4-chloro-3-methylphenol in relation to temperature, and the rates of resulting corrosion and sulfate effluent production.

Finland, Waste Management and Remediation Services, Water Treatment Chemicals, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Water Pollution, Chemical preparations, not elsewhere classified, Phenol Derivatives NEC, Potassium Compounds NEC, Statistical Data Included, Pollution control industry, Phenols, Phenols (Class of compounds), Water purification equipment and supplies industry, Water treatment equipment industry, Aromatic alcohols, Potassium compounds

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Analytical characterization of contaminated soils from former manufactured gas plants

Article Abstract:

Soil from five former manufacturing gas plants, and two coal tar plants were examined to determine levels of organic matter (OM). The goal of this study was to find information about the longevity and evolution of in-situ polycyclic aromatic hydrocarbons in the soil. OMs were extracted using pyrolysis/oxidation with flame ionization/thermal conductivity detection. The extracted material was then fractionated by liquid chromatography into saturated hydrocarbons, PAH and resins. Saturated hydrocarbons were also run through a mass spectrometer. OM levels were found to be similar with a total of 28 percent organic carbon in the solvent. Coal tar samples produced a higher level of extractable OM and PAH.

United States, All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Pollutants produced & recycled, Modified Essential Oils, Soil pollution, Essences and essential oils industry, Polycyclic aromatic hydrocarbons, Coal tar, Coal-tar

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