Title: Monitoring and examination of adaptation period of microorganisms in membrane-bioreactor system treating fruit juice industry wastewaters

Authors: Güler Turkoğlu Demirkol; Sevgi Gunes Durak; Süleyman Ovez; Nese Tufekci

Addresses: Environmental Engineering Department, Faculty of Engineering, Istanbul University, 34320, Avcılar, Istanbul, Turkey ' Environmental Engineering Department, Faculty of Civil Engineering, Yıldız Technical University, Davutpasa Campus, 34220, Esenler, Istanbul, Turkey ' Faculty of Civil Engineering, Environmental Engineering Department, Istanbul Technical University, Ayazaga Campus, 34469, Maslak, Istanbul, Turkey ' Faculty of Engineering, Environmental Engineering Department, Istanbul University, 34320, Avcılar, Istanbul, Turkey

Abstract: In this study, fruit juice industry wastewaters by using MBR process have been monitored and examined considering effective microorganisms and changes in biodiversity during the treatment period. Microbiological examinations have been carried out using conventional microbiological methods and microscopic observations. Eukaryotic and prokaryotic microorganisms and also floc structure of the activated sludge were identified and characterised. On the other hand, environmental parameters effective on microbial diversity of MBR process treating fruit juice wastewaters have been identified and discussed. Fruit juice wastewaters supported almost all kinds of microorganisms, primarily filamentous fungi Aspergillus spp., and ciliated protozoa Coccidia spp. and eliminated nematodes from the MBR system.

Keywords: Aspergillus spp.; Coccidia spp.; nematodes; filamentous microorganisms; fruit juice wastewater; MBR; microbiological monitoring; microorganisms; membrane bioreactors; wastewater treatment; biodiversity; activated sludge.

DOI: 10.1504/IJGW.2014.061008

International Journal of Global Warming, 2014 Vol.6 No.2/3, pp.160 - 174

Received: 08 Oct 2012
Accepted: 17 Feb 2013
Published online: 02 Jul 2014 *

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