231010

AWWA ACE94156

Hydrogen Peroxide Amendments to Alum Sludge: Effects on Sludge Characteristics and Dewaterability

Conference Proceeding by American Water Works Association , 01/01/1994

Kelkar, Uday G.; Schafran, Gary C.

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The treatment of alum sludges with hydrogen peroxide has been observed to improve thickening and dewatering in both the laboratory and treatment plant produced sludges. Improved dewatering of sludges appears to be controlled by the relative amounts of iron (and/or PAC) and organic matter in the sludge matrix. The mechanism through which improved dewatering likely occurs is the selective oxidation of organic matter by the hydroxyl and hydroperoxyl radicals formed by peroxide reaction with iron or PAC followed by the reorientation of sludge flocs into a denser, more readily dewatered configuration.
 

Product Details

Published:
01/01/1994
ISBN(s):
0898677742
Number of Pages:
13
File Size:
1 file
Note:
This product is unavailable in Ukraine, Russia, Belarus