Many industrial practices and waste treatment operations produce gas streams containing volatile organic compounds (VOCs) that require treatment. Although biological treatment has been applied successfully to treat many waste gases, the literature contains numerous reports of diminished treatment performance under conditions of excessive drying or low pH in biofilter beds. Use of fungi in biofi...

This paper describes an unexpected and novel nucleophilic phosphine-catalyzed annulation of ethyl (arylimino)acetates to give polysubstituted oxoimidazolidine derivatives in moderate to good yields from simple and easily available starting materials under mild conditions. In this reaction, the addition of methyl vinyl ketone (MVK) is essential to induce the formation of oxoimidazolidines.

Revision: 4/95 Process/Product: Mechanical Paint Stripping Process Code: ID-01-01, ID-01-99 Substitute for: Solvent Stripping Waste Stream: Aircraft Chemical Stripping and Paint Wastes Applicable EPA Hazardous Waste Codes: D007, D008, D035 Applicable EPCRA Targeted Constituents: Toluene, Xylene, Methyl Ethyl Ketone, Acetone, n-Butyl Alcohol, Lead, Chromium, Zinc Compounds, Phenols, Cloroacetic ...

Reduced downstream costs, together with high purity recovery of polyhydroxyalkanoate (PHA), will accelerate the commercialization of high quality PHA-based products. In this work, a process was designed for effective recovery of the copolymer poly(hydroxybutyrate-co-hydroxyhexanoate) (P(HB-co-HHx)) containing high levels of HHx (>15 mol%) from Ralstonia eutropha biomass using non-halogenated so...

This study aimed to characterize spatial/temporal variations of ambient volatile organic compounds (VOCs) using a community-scale monitoring approach and identify the main sources of concern in Paterson, NJ, an urban area with mixed sources of VOCs. VOC samples were simultaneously collected from three local source-dominated (i.e., commercial, industrial, and mobile) sites in Paterson and one ba...

Volatile aroma compounds were evaluated in USDA Top Choice and Select beef top loin steaks cut 1.3 cm (THIN) or 3.8 (THICK) cooked on a commercial flat grill at 177°C (LOW) 232°C (HIGH) surface temperature. Gas chromatography/mass spectrophotometry was used to evaluate volatile compounds. had more 2-octene less trimethyl pyrazine (P < 0.05) THIN than THICK steaks, whereas unaffected by s...

Polydimethylsiloxane (PDMS) oligomers with ranging from 900 to 7000 g/mol and which were α,ω-aminopropyl, α,ω-N-methylaminopropyl and α,ω-hydroxyhexyl terminated were obtained from Th. Goldschmidt AG in Essen, Germany. The of amine-terminated oligomers were determined by the titration of the end groups with hydrochloric acid. The of hydroxyhexyl terminated PDMS oligomers were det...