Agricultural and Biosystems Engineering, Civil, Construction and Environmental Engineering, Food Science and Human Nutrition, Toxicology
Journal or Book Title
Ozone: Science & Engineering
Research Focus Area(s)
Land and Water Resources Engineering
Pre-ozonation is often uneconomical for typical wastewaters with varied mixtures of organic compounds as more biodegradables than non-biodegradables are oxidized, all requiring ozone. The concept developed in this paper is ozonation within an activated sludge system to oxidize recalcitrant substances to more degradable forms and byproducts and to immediately assimilate or biodegrade these within the biological system. The focus was on a novel method of combining ozonation and biological treatment in one integrated unit without adversely affecting the bacterial population responsible for the biological degradation. An azo dye, spiked into the wastewater feed was used to study removal of a recalcitrant compound in a biological system.
Taylor & Francis
van Leeuwen, Johannes; Sridhar, Anand; Esplugas, Marc; Onuki, Shinnosuke; Cai, Lingshuang; and Koziel, Jacek A., "Ozonation within an Activated Sludge System for Azo Dye Removal by Partial Oxidation and Biodegradation" (2009). Agricultural and Biosystems Engineering Publications. 902.