Non-Fiction Books:

The Impact of Chemical Sequencing on Filtration Perfomance

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The Impact of Chemical Sequencing on Filtration Perfomance by Diana Gregory
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Description

The primary objective of this research was to understand the impact of chemical sequencing and coagulation pH/zeta potential on filtration performance. The secondary goal was to determine effective coagulation processes in terms of pH, zeta potential, and coagulant dose for treating challenging (i.e., runoff-type) raw waters. The following are highlights from this project: Use of high coagulation pH (approximately 7.5) provided more consistent filtration performance over a wider range of coagulation conditions than lower pH levels. Because higher pH significantly increases the optimum zeta potential range for filtration, a practical implication of this result is that use of a high coagulation pH process may be the most effective short-term treatment strategy for rapidly changing, runoff-type waters containing low alkalinity and high NOM levels. The photometric dispersion analyzer (PDA) appears to be a useful alternative to jar tests for determining optimum coagulant doses and quickly evaluating different coagulation scenarios.
Release date Australia
January 1st, 2004
Country of Publication
United Kingdom
Imprint
IWA Publishing
Pages
62
Dimensions
156x234x18
ISBN-13
9781843398639
Product ID
1935806

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