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Protein separation from alkaline process water of shrimp waste processing industry using membrane filtration

Nguyen, Le Quynh Thu ; Lippich, Heiko ; Wagner, Martin ; Cornel, Peter ; Lutze, Robert ; Engelhart, Markus (2014):
Protein separation from alkaline process water of shrimp waste processing industry using membrane filtration.
In: Vietnam Journal of Chemistry, 52 (2), pp. 174-178. ISSN 0866-7144,
DOI: 10.15625/4876,
[Article]

Abstract

The recovery of protein and caustic soda solution from shrimp waste alkaline process water was experimentally investigated by a two-step filtration process with polymer membranes of different molecular weight cut-offs. Experiments for nine combinations of microfiltration/ultrafiltration and nanofiltration membranes were conducted in batch-mode using a stainless steel stirred cell with a membrane area of 38.5 cm². It could be shown that this process concept is capable of separating protein and dissolved organic carbon from the alkaline hydrolysis of shrimp waste. Totally, more than 30 % of protein was fractionated by the first step filtration while the second step reached a higher protein rejection of more than 88 %. The protein concentrate could be reused as animal feeding and the recovered sodium hydroxide solution couldbe recycled to the production process.

Item Type: Article
Erschienen: 2014
Creators: Nguyen, Le Quynh Thu ; Lippich, Heiko ; Wagner, Martin ; Cornel, Peter ; Lutze, Robert ; Engelhart, Markus
Title: Protein separation from alkaline process water of shrimp waste processing industry using membrane filtration
Language: English
Abstract:

The recovery of protein and caustic soda solution from shrimp waste alkaline process water was experimentally investigated by a two-step filtration process with polymer membranes of different molecular weight cut-offs. Experiments for nine combinations of microfiltration/ultrafiltration and nanofiltration membranes were conducted in batch-mode using a stainless steel stirred cell with a membrane area of 38.5 cm². It could be shown that this process concept is capable of separating protein and dissolved organic carbon from the alkaline hydrolysis of shrimp waste. Totally, more than 30 % of protein was fractionated by the first step filtration while the second step reached a higher protein rejection of more than 88 %. The protein concentrate could be reused as animal feeding and the recovered sodium hydroxide solution couldbe recycled to the production process.

Journal or Publication Title: Vietnam Journal of Chemistry
Journal volume: 52
Number: 2
Uncontrolled Keywords: Membrane filtration, protein recovery, alkaline process water
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR > Wastewater Technology
Date Deposited: 06 Sep 2017 13:47
DOI: 10.15625/4876
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