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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 7, 2010
Accepted March 1, 2011

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Statistical assessment of starch removal from starchy wastewater using membrane technology

Javad Sargolzaei Amin Hedayati Moghaddam^† Jalal Shayegan¹

Department of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran ¹Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Korean Journal of Chemical Engineering, September 2011, 28(9), 1889-1896(8), 10.1007/s11814-011-0050-4

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Abstract

The present work deals with application of 25-2 fractional factorial design (FFD) to evaluate the operating parameters on starch separation from synthetic starchy wastewater using a hydrophilic polyethersulfone membrane with 0.65 μm pore size in a plate and frame handmade membrane module. The analysis of variance (ANOVA) combined with F-test was also used to recognize non-significant terms. The performance of the filtration process was evaluated by calculating the COD removal percentage (rejection factor) and permeate flux. In this experiment, five input_x000D_ parameters were surveyed, including trans membrane pressure (TMP), flow and temperature of feed, pH and concentration of wastewater. In this experiment, real wastewater was not used but synthetic starchy wastewater was prepared using starch. Two models were obtained from experimental data, capable of predicting COD removal percentage and permeate flux in different conditions. The predicted values obtained from the regression models were close to the actual ones. For the reduction of fouling, cleaning in place (CIP) method was used.

Keywords

Starch Removal Membrane COD Permeate

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