An overview of the integration of ozone systems in biological treatment steps

Autor:	A. Wieland, J. Mielcke, A. Ried, Michael Sievers, S. Schaefer
Rok vydání:	2007
Předmět:	Environmental Engineering Waste management Chemistry Groundwater recharge Biodegradation Oxygen Industrial wastewater treatment Ozone Wastewater Dissolved organic carbon Sewage treatment Leachate Effluent Water Science and Technology
Zdroj:	Water Science and Technology. 55:253-258
ISSN:	1996-9732 0273-1223
DOI:	10.2166/wst.2007.413
Popis:	Despite the well-known potential and performance of combined biological and ozonation processes for wastewater treatment, only few full-scale applications are published. Beside the synergistic effects of such process combination, which lead to oxidation of recalcitrant and inhibitory compounds or intermediates by enhancement of their biodegradability, the key for raising applicability is the improvement of the ozonation efficiency. An overview about the history and progress of full-scale applications, which deals with combined ozonation and biological treatment is given. Recently more than 40 applications exist, but many of them are not published. Therefore, a couple of selected not yet published applications have been mentioned in this paper. Landfill leachate and industrial wastewater treatment were mostly applicated, while treatment of municial wastewater treatment plant (WWTP) effluents are of increasing interest due to several advantages such as disinfection, decolourisation and removal of persistent dissolved organic carbon (DOC) for water re-use and groundwater recharge.
Databáze:	OpenAIRE
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