Results 171 to 180 of about 10,922 (225)

Wet peroxide oxidation of chlorophenols

Water Research, 2005
This study evaluates the application of Wet Peroxide Oxidation (WPO) for the treatment of solutions containing 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP). These compounds are of special interest due to their high toxicity and low biodegradability.
Verónica, García-Molina, Marta, López-Arias, Magdalena, Florczyk, Esther, Chamarro, Santiago, Esplugas   +4 more
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Enzymatic Oxidative Transformation of Chlorophenol Mixtures

Journal of Environmental Quality, 2003
ABSTRACTChlorinated phenols are major industrial and agricultural xenobiotics that pollute soil and ground water. It has been shown that laccases catalyze the oxidative coupling of phenolic compounds. Therefore, the transformation of one or a mixture of several chlorinated phenols by a laccase from the fungus Trametes villosa was studied. Generally, if
BOLLAG J. M, CHU R, RAO, MARIA ANTONIETTA, GIANFREDA L.   +3 more
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Marine Bacteria Tolerant to Chlorophenols

Bulletin of Environmental Contamination and Toxicology, 1999
The cellulose industry produce chlorophenols as a result of the use of chlorine during pulp cellulose bleaching, and are discharged into natural waters by their effluents. The pollution of coastal sea waters by chlorophenols and several other organic compounds could modify the biota of this environment because the compounds have high toxicity, are ...
M, Martínez, A, Campos, A, García, C L, González   +3 more
openaire   +2 more sources

Urinary chlorophenols in sawmill workers

International Archives of Occupational and Environmental Health, 1987
The concentration of urinary chlorophenol was assayed for 230 sawmill workers. Information on the work tasks was obtained through questionnaires from occupational health centres. The workers were divided into three groups on the basis of the type of exposure: (1) those with skin absorption as the main route, (2) those with skin and respiratory route of
L, Lindroos, H, Koskinen, P, Mutanen, J, Järvisalo   +3 more
openaire   +2 more sources

Enzymatically mediated incorporation of 2-chlorophenol and 4-chlorophenol into humic acids

Chemosphere, 1994
Abstract A possible route to chlorinated humic substances in the environment, is an indirect chlorination of humic material by enzymatically mediated incorporation of low molecular weight organo-chlorine compounds into the humic skeleton. The enzymatically mediated incorporation of 2-chlorophenol and 4-chlorophenol into humic acids by Horseradish ...
Lassen, P., Randall, A., Jørgensen, O., Warwick, P., Carlsen, L.   +4 more
openaire   +2 more sources

Electrochemical Oxidation of Chlorophenols

Industrial & Engineering Chemistry Research, 1997
Electrochemical 2-chlorophenol and 2,6-dichlorophenol removal from aqueous solutions using porous carbon felt anodes was investigated. Operating variables including current input, ratio between electrode and solution volumes, and initial pollutant concentration were considered in order to determine their influence on the faradic efficiency of the ...
Anna M. Polcaro, Simona Palmas
openaire   +1 more source

Lethal Body Residue of Chlorophenols and Mixtures of Chlorophenols in Benthic Organisms

Archives of Environmental Contamination and Toxicology, 2001
The lethal body residue (LBR) of a few chlorophenol congeners were measured in the oligochaete worm Lumbriculus variegatus, and the LBR of pentachlorophenol was measured also in a midge, Chironomus riparius larvae. LBR is defined as the concentration of the compound in the organism, on molar basis, to cause death, and the LBR(50) is defined as the ...
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Chlorophenol Compounds in Snow

1988
Polychlorinated phenols, guaiacols and catechols have been studied in snow from North Pole, North, Central and South Finland. Only Central and South Finland samples contained known compounds above limit of determination 0.5 ng/1. Airborne chlorophenol pollution appeared to be very much higher in South than in Central Finland.
R. Paukku, J. Paasivirta, M. Knuutila, S. Herve   +3 more
openaire   +1 more source

Chlorophenols in the Terrestrial Environment

1996
Chlorophenols are presently widespread in the environment. Even in the most remote natural environments, the presence of chlorophenols in both aquatic and terrestrial food chains has been recorded. These pervasive compounds have been used for a wide range of domestic, agricultural, and industrial purposes for more than 50 years.
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Electrochemical Degradation of Chlorophenols

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source