<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The paper introduces the <italic>test of aggregation</italic> as 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 the <italic>aggregation test</italic> is 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.</p></abstract>

The paper introduces the test of aggregation as 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 the aggregation test is 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.

A Method for Evaluation of Suspension Quality Easy Applicable To Practice: The Effect of Mixing on Floc Properties

Academy of Sciences, Institute of Hydrodynamics, Pod Patankou 5, 166 12 Prague 6, Czech Republic

Journal of Hydrology and Hydromechanics

The paper introduces the test of aggregation as a simple, inexpensive method of evaluating suspension quality during drinking water treatment, suitable for use...

A Method for Evaluation of Suspension Quality Easy Applicable To Practice: The Effect of Mixing on Floc Properties

Publié en ligne: 21 sept. 2011

Pages: 184 - 195

DOI: https://doi.org/10.2478/v10098-011-0015-7

Mots clés
agregace, flokulace, test agregace, úprava pitné vody, vlastnosti agregátů

This content is open access.

A Method for Evaluation of Suspension Quality Easy Applicable To Practice: The Effect of Mixing on Floc Properties

Publié en ligne: 21 sept. 2011

Pages: 184 - 195

DOI: https://doi.org/10.2478/v10098-011-0015-7

Mots clésagregace, flokulace, test agregace, úprava pitné vody, vlastnosti agregátů

This content is open access.

Mots clés
agregace, flokulace, test agregace, úprava pitné vody, vlastnosti agregátů