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The application of ultrafiltration for separation of glycerol solution fermented by bacteria Cover

The application of ultrafiltration for separation of glycerol solution fermented by bacteria

By: Wirginia Tomczak and  Marek Gryta  
Open Access
|Sep 2013

Abstract

A biotechnological synthesis generated a fermentation broth containing the dissociated forms of organic compounds and residual mineral salts. An effective method of selective removal of the ionic species and organic compounds from solutions comprises nanofiltration and reverse osmosis. Ultrafiltration (UF) was used in this work as a pre-treatment method for the preparation of feed for these processes. The UF study was carried out with a real broth, which was obtained using Citrobacter freundii bacteria for the fermentation of glycerol solutions, resulting in the UF permeate with turbidity below 0.1 NTU. However, a significant decline of the permeate flux was observed during the UF process. The influence of the transmembrane pressure on the fouling intensity of used ceramic membranes was investigated. A periodical membrane cleaning was carried out by rinsing with water and a 1 wt % solution of sodium hydroxide. The applied cleaning procedures permitted to restore the initial permeate flux.

Language: English
Page range: 115 - 120
Published on: Sep 20, 2013
Published by: West Pomeranian University of Technology, Szczecin
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2013 Wirginia Tomczak, Marek Gryta, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.