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Purification of Model Dairy Wastewaters by Ozone, Fenton Pre-treatment and Membrane Filtration

Authors :
Erika Hanczné Lakatos
Zsuzsanna László
Dániel Imre Farkas
Mihály Zakar
Gábor Keszthelyi-Szabó
Source :
Periodica Polytechnica Chemical Engineering. 64:357-363
Publication Year :
2020
Publisher :
Periodica Polytechnica Budapest University of Technology and Economics, 2020.

Abstract

This study aimed to investigate the effect of ozone and Fenton-reaction as a pre-treatment before ultrafiltration of model dairy waste waters containing sodium caseinate. Filtration resistances and pollutant retentions were determined and compared. It was found, that both pre-treatment increased the retention, achieving almost 100 % pollutant elimination efficiency after short term pre-oxidation. The effect of Fe-ion concentration on Fenton pretreatment efficiency also was examined, and it was found that higher concentration resulted in decreased filtration resistances, revealing that coagulation-flocculation effect of reactants has dominant role in the protein separation efficiency. The presence of lactose also affects the pollutant removal efficiency, it promotes fouling in presence of Fenton reagents.

Details

ISSN :
15873765 and 03245853
Volume :
64
Database :
OpenAIRE
Journal :
Periodica Polytechnica Chemical Engineering
Accession number :
edsair.doi...........0b0bcbd37991afd08deab2ab43c08a8a