Water demand is increasing because of demographic and urban development in the last decades. Crude oil an essential energy resource for many anthropogenic activities. However, it associated with generation environmental pollution. In present work, a native microbial consortium was used to study hydrocarbon biodegradation crude its potential use remove organic pollutants wastewater. The kinetic ...

Coal tar is obtained by cooling the gas that is formed during the destructive distillation of coal to approximately ambient temperature. It is a black, viscous liquid composed primarily of a complex mixture of condensed-ring aromatic hydrocarbons. It may contain phenolic compounds, aromatic nitrogen bases and their alkyl derivatives, and paraffinic and olefinic hydrocarbons. Coal-tar pitch is t...

the previous paper it was reported that up to seven different aromatic polycyclic hydrocarbons, including 3,4-benzpyrene, were extracted with benzene from most carbon blacks made by the furnace process, but from no channel blacks (3). This difference cannot be explained on the basis of differences in raw materials. Soot formed in the laboratory from gas, which is similar to that used in the cha...

background: polycyclic aromatic hydrocarbons (pahs) such as naphthalene (nap) are organic pollutants that have spread widely in littoral marine ecosystems. we aimed to study the effect of acute and prolonged exposure to naphthalene (nap) on plasma cortisol and thyroid levels in mature and immature liza klunzingeri mulet. methods: in acute stress experiment, the treatment group received 2μl g-1 ...

polycyclic aromatic hydrocarbons (pahs) in the priority controlling list of us epa weresystematically evaluated in surface sediments in dianchi lake and its estuaries. total pah concentrations(σpahs) varied from 210 to 11,070 ng/g dry weight (d.w.) in dianchi lake, and from 230 to 12,271 ng/g d.w.in the estuaries. σpahs in sediments from caohai section were higher than those from waihai section...

the expansion of a microbial bank for the degradation of polycyclic aromatic hydrocarbons (pahs) is crucial for removal of these persistent pollutants. in this study, five gram-negative, aerobic, non-fermentative bacterial strains (iii-r3, iv-p11, iv-p13, iv-r13, and v-p18) were isolated from the activated sludge of a petrochemical wastewater treatment plant using enrichment pro­ tocol based on...

Downward fluxes of elemental carbon, metals and polycyclic aromatic hydrocarbons in settling particles from the deep Ionian Sea (NESTOR site), Eastern Mediterranean C. Theodosi, C. Parinos, A. Gogou, A. Kokotos, S. Stavrakakis, V. Lykousis, J. Hatzianestis, and N. Mihalopoulos Environmental Chemistry Processes Laboratory, Department of Chemistry, University of Crete, P.O. Box 2208, 71003 Herakl...

Here, we present the draft genome of Sphingomonas sp. strain Ant20, isolated from oil-polluted soil near Scott Base, Ross Island, Antarctica. The genome of this aromatic hydrocarbon-degrading bacterium provides valuable information on the microbially mediated biodegradation of aromatic compounds in cold-climate systems.

7,12-DimethyIbenz(a)anthracene, a carcinogenic polycyclic aromatic hydrocarbon compound, significantly en hanced the transplantability and stimulated the growth of a pituitary tumor in rats. Estrogen was less effective than 7,12-dimethylbenz(a)anthracne. The combination of 7,12dimethylbenz(a)anthracene and estrogen showed a synergistic effect. Hormone production by the tumor was not impaired by...

a solid-phase extraction (spe) method for sample clean-up and preconcentration followed by reversed-phase high-performance liquid chromatography (rp-hplc) with uv detection is reported for determination of polycyclic aromatic hydrocarbons (pahs) in the caspian seawater. a good resolution was obtained using acetonitrile:water (40:60) as mobile-phase for separation of these compounds. the effect ...