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Pesticide Removal by Combined Ozonation and Granular Activated Carbon Filtration : IHE Thesis - Ervin Orlandini

Pesticide Removal by Combined Ozonation and Granular Activated Carbon Filtration

IHE Thesis

Paperback Published: 1st November 1999
ISBN: 9789054104148
Number Of Pages: 182

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This research aimed to identify and understand mechanisms thar underlie the beneficial effect of ozonation on removal of pesticides and other micropollutants by Granular Activated Carbon (GAC) filtration. This allows optimization of the combination of these two processes, termed Biological Activated Carbon filtration. The study concluded that ozonation significantly improves removal of atrazine by GAC filtration not only due to the wellknown effect of oxidation of atrazine, but also due to the effect of partical oxidation of Background Organic Matter (BOM) present in water. Ozone-induced oxidation of BOM was found to improve adsorption of atrazine in GAC filters. Biodegradation of atrazine in these filters wasnot demonstrated. Higher GAC's adsorption capacity for atrazine and faster atrazine's mass transfer in filters with ozonated rather than non-ozonated influent were explained as due to ozonated BOM. Both can be attributed to enhanced biodegradability and reduced adsorbsbility of partially ozidated BOM compounds, resulting in their increased biodegradation and decreased adsorption in GAC filters.

Acknowledgments
Abstract
General introductionp. 1
Ozonation and atrazine removal by GAC filtration: process analysis and research scopep. 17
Ozonation vs. disinfection and formation of biodegradable organic matter and bromatep. 47
Biodegradation and atrazine removal by GAC filtrationp. 67
Ozonation and competitive adsorption of background organic matterp. 97
Ozonation and preloading of background organic matterp. 121
Predicting atrazine removal by ozone-induced biological activated carbon filtrationp. 139
Summaryp. 157
Samenvatting (abstract in Dutch)p. 167
Curriculum vitaep. 171
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9789054104148
ISBN-10: 9054104147
Series: IHE Thesis
Audience: Professional
Format: Paperback
Language: English
Number Of Pages: 182
Published: 1st November 1999
Country of Publication: NL
Dimensions (cm): 25.4 x 17.78  x 1.02
Weight (kg): 0.34

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