• 16 BIODEGRADATION POTENTIAL OF ALKYLBENZENES AND PHENOLS IN LANDFILLS Yu-Sheng Wang, Doctoral Candidate Morton A. Barlaz, Associate Professor Department of Civil Engineering North Carolina State University P.O. Box 7908, Raleigh, North Carolina 27695 ABSTRACT This research evaluated the anaerobic biodegradability of benzene, toluene, yethylbenzene, xylenes (BTEX), phenol, and p-cresol using microbial consortia derived from decomposing refuse samples. (purdue.edu)
  • This study demonstrated that landfills harbor anaerobic microorganisms capable of degrading toluene, phenol, and p-cresol. (purdue.edu)
  • Thus, it is a particularly useful organism for studying the biochemistry of this important process, about which little is currently known, and for potential use in bioremediation, especially for the first phase of a two-stage anaerobic/aerobic process where PCE is first converted to cDCE anaerobically, and then cDCE is oxidized aerobically by cometabolism with bacteria that grow on substrates such as phenol or toluene. (epa.gov)
  • Dechlorination of all mono- and dichlorophenol isomers in anaerobic sediment samples of estuarine Lake Shinji and Lake Nakaumi was examined to characterize the chlorophenol-dechlorinating microbial co. (aladdin-e.com)
  • not in citation given] The production of TCA in cork or its transfer by other means into wine is complex, but most results when naturally occurring airborne fungi are presented with chlorophenol compounds, which they then convert into chlorinated anisole derivatives. (wikipedia.org)
  • At this point, multiple residues act to stabilize catalytic intermediates by hydrogen-bonding to the peroxide bound to FAD, as well as to the hydroxyl group of 4-HPA's phenol moiety (stabilizing its dienone transition state - see Mechanism). (wikipedia.org)
  • The results showed that the optimum conditions (the complete 4-chlorophenol removal (100%) at 60 min) were obtained at a neutral pH, with 0.2 mol/L H 2 O 2 , and 0.05 g/L of nickel oxide. (biomedcentral.com)
  • Phenol is the simplest member of a family of related chemicals known as phenols. (sepa.org.uk)
  • Occupational exposure is an issue for some in the chemical industries, historically for those making chlorophenols or chlorophenoxy acid herbicides or in the application of chemicals, notably herbicides. (wikipedia.org)
  • Significant amounts of phenols are also released naturally, for example from forest fires. (sepa.org.uk)
  • Low-level naturally occurring phenols are unlikely to harm human health. (sepa.org.uk)
  • Phenol dissolves reasonably well in water. (sepa.org.uk)
  • Finally, the results of mineralization and chloride ions studies indicated that dechlorination was better accomplished but more time was required to completely mineralize 4-chlorophenol into water and carbon dioxide. (biomedcentral.com)
  • Phenol is also emitted in vehicle exhaust and is found in cigarette smoke. (sepa.org.uk)
  • Using Mn(II)-MCM41 as an Environment-Friendly Catalyst to Oxidize Phenol, 2-Chlorophenol , and 2-Nitrophenol in Aqueous Solution, Ind. (thefreedictionary.com)
  • In terms of combined pollution, Cr(VI) can coexist with other organic pollutants in the environment but the impact of organic pollutants on the reduction of Cr(VI), changes to the organic pollutants themselves, and the role of oxalic acid in these reactions are unknown. (springer.com)
  • The monosubstituted p -nitrophenol ( p -NP) could enter the environment during its production and use in high-temperature coal conversion, as a byproduct in the enzymatic hydrolysis of parathion, methyl parathion, and N-acetyl- p -amino-phenol. (hindawi.com)
  • These findings have been replicated in experimental studies both in human (in-vitro) and animals (in-vivo and in-vitro), and patho-physiological derangements through which these pollutants exercise their harmful effect on diabetes risk postulated. (biomedcentral.com)
  • Predictive models of pollutant transport are needed for site characterization and to design effective biological remediation strategies. (epa.gov)
  • EPA Method 604 is a flame ionization detector gas chromatographic (FIDGC) method for the determination of phenols and certain substituted phenols in municipal and industrial discharges. (dani-instruments.com)
  • Long-term exposure to higher levels of some types (such as chlorophenols) released due to man's activities may cause cancer and have other adverse effects on health. (sepa.org.uk)
  • They have been used as raw material in many kinds of industries for the production, such as phenol resins, polycarbonate plastics, and acetylsalicylic acid. (frontiersin.org)