The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science (Jun 2012)
Physico-Chemical Water Treated with Sonic Generator and Al2(SO4)3 Coagulant
Abstract
This paper is a study on the problem of using ultrasound in the treatment of raw water. It highlights the effect of ultrasounds produced by the experimental sonic ultrasound generator through the physico-chemical analysis of raw water, as well as of the treated water, namely turbidity, pH and dissolved oxygen. Also, to reduce the dose of coagulant used in water treatment plants, we studied the influence of ultrasound on water treated with coagulant based on the physicochemical parameters analysis. The aim of this paper was to determine the effects of ultrasound and of the coagulant on the physico-chemical parameters of water by treating raw water with ultrasonic gas-dynamic generators, or by adding coagulant, with reference to water quality before treatment. We followed the environmental impact by allowing the use of the sonic generator technology treatment leading to significant reduction in the amount of chemicals commonly used in water treatment stations in view of clotting suspension.