Aquatic plants in a laboratory
Project #1053

A New Tool for Measuring Biosolids Floc Strength

$0
Completed
Principal Investigator
Mohammad
Abu-Orf
Research Manager
Dr. Daniel M. Woltering, Ph.D.
Biosolids
Treatment

Abstract

Dewatering and removal of solids are significant costs for wastewater treatment plants. Even small increases in efficiency of either process would be a major boon for the industry. This report explores the relationship between the dewaterability of sludge and the strength of the flocculated material being dewatered. Specifically, the project team monitored the floc’s network strength using concentric cylinder rheometers, finding that the point at which the network strength dropped corresponded to the optimal polymer dose. The information derived from this new protocol was found to be reproducible in lab- and full-scale testing. Published by WERF. 92 pages. Soft cover. (2004)

Originally funded as WERF project 01-CTS-32ET.

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