Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Identification and Removal of Herbicides and Pesticides
A study on the effectiveness of existing treatment practices for the removal of herbicides and insecticides was conducted by the U.S. Public Health Service utilizing coagulation; oxidation with chlorine, chlorine dioxide, ozone, and potassium permanganate; and, adsorption with activated carbon. The coagulation studies with alum and iron salts demonstrated partial removal of a few of the products tested, but usually of too low a magnitude to be considered significant. DDT was quite effectively removed by coagulation and filtration. Oxidation studies showed that there was very little merit in chlorination or potassium permanganate treatment. Ozone appeared to be somewhat more effective than chlorine dioxide on only a few of the products tested. Removal by adsorption on activated carbon has demonstrated success in reducing the concentration of the following toxic compounds: benzene‐ hexachloride; DDT; 2, 4‐D; toxaphene; dieldrin; aldrin; chlordane; malathion; and, parathion.
Identification and Removal of Herbicides and Pesticides
A study on the effectiveness of existing treatment practices for the removal of herbicides and insecticides was conducted by the U.S. Public Health Service utilizing coagulation; oxidation with chlorine, chlorine dioxide, ozone, and potassium permanganate; and, adsorption with activated carbon. The coagulation studies with alum and iron salts demonstrated partial removal of a few of the products tested, but usually of too low a magnitude to be considered significant. DDT was quite effectively removed by coagulation and filtration. Oxidation studies showed that there was very little merit in chlorination or potassium permanganate treatment. Ozone appeared to be somewhat more effective than chlorine dioxide on only a few of the products tested. Removal by adsorption on activated carbon has demonstrated success in reducing the concentration of the following toxic compounds: benzene‐ hexachloride; DDT; 2, 4‐D; toxaphene; dieldrin; aldrin; chlordane; malathion; and, parathion.
Identification and Removal of Herbicides and Pesticides
Sigworth, E. A. (Autor:in)
Journal ‐ American Water Works Association ; 57 ; 1016-1022
01.08.1965
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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