Full Description

The recently promulgated Disinfectant/Disinfection By-Product Rule has triggered interest in alternatives to the traditional use of chlorine for the disinfection of drinking water supplies. Ozone has emerged as a prime candidate to replace chlorine, since it does not produce the chlorination byproducts now regulated under the federal rule. Although the use of ozone offers a number of advantages over chlorine, proper contact between water and ozone is critical. Improper design can lead to ozone loss, excessive cost, inefficient operation, and most important, inferior water quality. Several contact types were investigated to determine optimal efficiency, design and size constraints, and operational considerations. Included among the contactor types were multibaffled reactors equipped with porous plates, turbine contactors, static mixers and venturi reactors. This paper is an overview of their performances in terms of transfer and hydraulic behavior. Finally, computer tools are presented to help engineers better design ozone reactors and aid operators of water treatment plants to operate an ozone installation more efficiently.

Product Details

Published: 01/01/1995 ISBN(s): 0898678358 Number of Pages: 12File Size: 1 file , 560 KB