Publication: Determination of the acute toxicities of physicochemical pretreatment and advanced oxidation processes applied to dairy effluents on activated sludge
Date
Authors
Sivrioğlu, Özge
Yonar, Taner
Authors
Advisor
Language
Type
Publisher:
Elsevier Science
Journal Title
Journal ISSN
Volume Title
Abstract
In this study, the acute toxicities of raw, physicochemical pre-treated, ozonated, and Fenton reagent applied samples of dairy wastewater toward activated sludge microorganisms, evaluated using the International Organization for Standardization's respiration inhibition test (ISO 8192), are presented. Five-day biological oxygen demand (BOD5) was measured to determine the biodegradability of physicochemical treatment, ozonation, Fenton oxidation or no treatment (raw samples) of dairy wastewater. Chemical pretreatment positively affected biodegradability, and the inhibition exhibited by activated sludge was removed to a considerable degree. Ozonation and the Fenton process exhibited good chemical oxygen demand removal (61%) and removal of toxins. Low sludge production was observed for the Fenton process applied to dairy effluents. We did not determine the inhibitory effect of the Fenton-process on the activated sludge mixture. The pollutant-removal efficiencies of the applied processes and their associated operating costs were determined.
Description
Source:
Keywords:
Keywords
Agriculture, Food science & technology, Activated sludge inhibition, Chemical pretreatment, Fenton process, Dairy effluent, Ozonation, Waste-water, Textile effluent, Degradation, Inhibition, Wastewaters, Performance, Industry, Removal, Color, Cod
Citation
Sivrioğlu, Ö. vd. (2015). "Determination of the acute toxicities of physicochemical pretreatment and advanced oxidation processes applied to dairy effluents on activated sludge". Journal of Dairy Science, 98(4), 2337-2344.