Author:
Ebubakova Petra,Pivokonsky Martin,Pivokonska Lenka
Abstract
A Method for Evaluation of Suspension Quality Easy Applicable To Practice: The Effect of Mixing on Floc PropertiesThe paper introduces thetest of aggregationas a simple, inexpensive method of evaluating suspension quality during drinking water treatment, suitable for use in both laboratory and operation conditions. The procedure and derivation of theaggregation testis described. The method is used for a demonstration of the influence of mean velocity gradient and mixing time on floc properties formed during the aggregation in a Couette reactor. It was proved that with increasing velocity gradient, the size of the aggregates present in the suspension decreases, and the suspension is substantially more homogeneous than with use of lower gradients. Further, it was confirmed that the size of aggregates reaches the steady state after a specific mixing time, which becomes shorter with increasing value of velocity gradient.
Subject
Fluid Flow and Transfer Processes,Mechanical Engineering,Water Science and Technology
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