AWWA ACE65507

The objectives of this powerpoint presentation were: to present representative results from lab and fieldstudies conducted to evaluate the effect of oxidantson particle removal in granular media filters, recognizing the role of biology/photosynthetic activity; and,to present follow-up work conducted at theOnondaga County Water Authority, includingunintended consequences of switching pre-oxidants. The four oxidants studied wereozone, chlorine,chlorine dioxide, andpotassium permanganate. Results of the field studies are provided, along with lab filtration studies and design criteria. A case study is provided of the Onondaga County Water Authority. The goals of the AwwaRF Project 2725, Using Oxidants to Enhance Filter Performance, are listed and include: to determine the conditions under which oxidants can be used to enhance the removal of particles by coagulation and filtration; to better understand the mechanisms of oxidant-enhancedparticle removal;to determine the conditions under which it willoccur; and, to develop design and operating criteria topromote oxidant-enhanced particle removal.

Product Details

Edition:

Vol. - No.

Published:

06/01/2007

Number of Pages:

51

File Size:

1 file , 1.4 MB