نتایج جستجو برای: chlorinated aliphatic hydrocarbons
تعداد نتایج: 37231 فیلتر نتایج به سال:
In this study, adsorption measurement of various chlorinated hydrocarbons on Y-type zeolites were performed using the chromatographic method to examine the adsorption phenomena. Dichloromethane (DCM), chloroform (TCM), trichloroethylene (TCE), and tetrachloroethylene (PCE), were used as the chlorinated hydrocarbons, and PQ-USY, USY-6.18, Na-Y, HSZ-390HUD, Pentasile-2 and Pentacil-1 were used as...
A collective view of the degradation of monochlorocatechols in fungi is yet to be attained, though these compounds are recognised as key degradation intermediates of numerous chlorinated aromatic hydrocarbons, including monochlorophenols. In the present contribution we have analysed the degradation pathways of monochlorophenols in Aspergillus nidulans using essentially metabolomics. Degradation...
a relatively constant amount of dieldrin, a chlorinated hydrocarbon insecticide, is directly related to obesity. This relationship should be applicable regardless of the route of absorption of dieldrin (ingestion, inhalation, or percutaneous). Forced feeding of a high calorific value food appears to have a place in the treatment of dieldrin poisoning and, by extension, in the treatment of poiso...
Mean serum levels of polychlorinated biphenyls (PCBs) in U.S. population groups without occupational exposure to PCBs are usually between 4 and 8 ng/mL, with 95% of individuals having serum PCB measurements of less than 20. Subpopulations consuming fish taken from contaminated waters, such as Lake Michigan and near Triana, AL, have mean serum PCB levels several times those found in other genera...
Chlorophenol compounds and their derivatives are ubiquitous contaminants in the environment. These compounds are used as intermediates in manufacturing agricultural chemicals, pharmaceuticals, biocides, and dyes. Chlorophenols gets into the environment from a variety of sources such as industrial waste, pesticides, and insecticides, or by degradation of complex chlorinated hydrocarbons. Thermal...
VASELINE oil intoxication is a known cause of exogenous lipoid pneumonia. Vaseline oil is a mixture of saturated aliphatic (C14–C18) and cyclic hydrocarbons that is insoluble in water and, in the alveolar space, activates an acute inflammatory response with edema and interstitial fibrosis. Because the hydrocarbons cannot be metabolized in humans, the therapy consists of limiting or decreasing t...
the waste tyres represent a source of energy and valuable hydrocarbon products. waste tyres were pyrolysed catalytically in a batch reactor under atmospheric pressure. the effects of basic catalysts (mgo and caco3) were studied on the pyrolysis products. the distribution ratio of gas, liquid and char with mgo and caco3 were 24.4:39.8:35.8 wt % and 32.5:32.2:35.2 wt % respectively at 350°c for 2...
Petroleum hydrocarbons are important energy resources used by industry and in our daily life, whose production contributes highly to environmental pollution. To control such risk, bioremediation constitutes an environmentally friendly alternative technology that has been established and applied. It constitutes the primary mechanism for the elimination of hydrocarbons from contaminated sites by ...
Because of their non-inflammability and their strong solvent properties the chlor compounds of the petroleum series have a wide and increasing use as degreasers of metal, cleansers of textiles, dry cleansers, solvents for rubber, tar, and gums, thinners for cellulose lacquers, and in treatment of garbage, tankage, and bones. Other uses are the production of high-grade lubricating oils from infe...
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