Results 211 to 220 of about 12,980 (251)
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Trihalomethanes in developed and developing countries
Environmental Monitoring and Assessment, 2023The reactions between natural organic matter, anthropogenic contaminants, ions, and disinfectants lead to the formation of disinfection by-products (DBPs) such as trihalomethanes (THMs) in drinking water. The formation of THMs is strongly related to the chlorination of water.
Anjali, Kothe +4 more
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Dechlorination and trihalomethane yields
Bulletin of Environmental Contamination and Toxicology, 1985Wastewater treatment plants, paper mills and electric power plants are major dischargers of chlorinated effluents to rivers, lakes, estuaries and the sea. At power plants chlorine is used to control fouling in cooling water while it is passing through conduits and condensers.
G R, Helz, A D, Uhler, R, Sugam
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Journal AWWA, 1988
This survey was conducted to determine the extent and costs of compliance with the existing maximum contaminant level (MCL) for trihalomethanes (THMs). It was found, on average, that the MCL of 0.10 mg/L had reduced the concentrations of THMs in larger utility systems by 40–50 percent.
Michael J. McGuire, Robert G. Meadow
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This survey was conducted to determine the extent and costs of compliance with the existing maximum contaminant level (MCL) for trihalomethanes (THMs). It was found, on average, that the MCL of 0.10 mg/L had reduced the concentrations of THMs in larger utility systems by 40–50 percent.
Michael J. McGuire, Robert G. Meadow
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Acta hydrochimica et hydrobiologica, 1987
AbstractIn three water works investigations were performed on the formation of halogenated hydrocarbons resulting from chlorination and the results are given. There were exclusively detected halogenated methane compounds with concentrations below 25 μg/1 and therefore agreeing with values already reported.
W. Puchert, J. Prösch, H. Wagner
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AbstractIn three water works investigations were performed on the formation of halogenated hydrocarbons resulting from chlorination and the results are given. There were exclusively detected halogenated methane compounds with concentrations below 25 μg/1 and therefore agreeing with values already reported.
W. Puchert, J. Prösch, H. Wagner
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Correlating Trihalomethane Data
Journal of Environmental Engineering, 1994Because of its importance as a drinking water supply for 20,000,000 Californians, the Sacramento‐San Joaquin delta and its tributaries have received much attention with respect to drinking water quality in general and trihalomethane formation potential (THMFP) in particular.
Paul H. Hutton, Francis I. Chung
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Trihalomethanes aqueous solutions sono-oxidation
Water Research, 2005Ultrasonic (US) irradiation, hydrogen peroxide (H(2)O(2)), Fenton's oxidation and the combination of the processes were investigated for destruction and removal of the following trihalomethanes (THMs) compounds from aqueous solutions: CHCl(3), CHBrCl(2), CHBr(2)Cl, CHBr(3), and CHI(3). H(2)O(2) had no significant effect on the THMs sonodegradation. The
Hilla, Shemer, Nava, Narkis
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The Formation of Trihalomethanes
Journal AWWA, 1978Presented here is a review of current knowledge of trihalomethane formation in natural waters, including the effects of preozonation, bromide, pH, and chlorine dose. Areas needing further study are outlined.
R. Rhodes Trussell, Mark D. Umphres
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Precise Analysis of Trihalomethanes
Journal AWWA, 1979The liquid‐liquid extraction (LLE) technique yields precise and accurate analysis of trihalomethanes in drinking water. The use of glass capillary gas chromatography affords quality assurance and versatility as well as speed: a chemist can analyze eight samples per hour on one gas chromatograph.
Albert R. Trussell +3 more
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TRIHALOMETHANE REMOVAL BY ACTIVATED CARBON FIBER
Journal of Environmental Science and Health, Part A, 2001For the safety of drinking water, trihalomethanes are removed by adsorption onto activated carbon fiber from single-component solutions. The amounts adsorbed onto adsorbents with large surface area and/or pore volume were small. Stronger surface hydrophobicity of adsorbent was correlated with a larger amount of trihalomethanes adsorbed.
T, Nakamura +4 more
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Biomonitoring Equivalents (BE) dossier for trihalomethanes
Regulatory Toxicology and Pharmacology, 2008Measurements of whole blood concentrations of trihalomethanes (THMs) have been reported in persons in the general population. Risk assessments based on administered doses of THMs have been conducted for both cancer and non-cancer health endpoints by the US Environmental Protection Agency; however, no health-based standards exist for interpreting ...
Aylward, Lesa L. +2 more
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