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Continuously Deoxygenation of Water in a Reactor Packed With Glucose Oxidase Immobilized in Mno2/Calcium Alginate Composite Publisher



Abdi A1 ; Karimi A1, 2 ; Razzaghi M1
Authors

Source: Journal of Environmental Chemical Engineering Published:2016


Abstract

In this research, removing dissolved oxygen (DO) from water by means of granular biocatalyst (GB) was investigated. GB was prepared by granulation of glucose oxidase (GOx) adsorbed on MnO2 micro-sized particles by calcium alginate. Prepared biocatalyst was able to remove DO and decompose produced hydrogen peroxide simultaneously. Factors affecting DO removal including temperature, pH and glucose concentration were studied; at the optimum condition which was achieved to be 30 °C, 6.85 and 80 mM respectively, DO was removed completely. Stability of enzymatic activity of GB was investigated. Besides, Water deoxygenation was studied in a packed bed reactor by GB utilization at optimum operating condition. The highest deoxygenation rate was observed at feed flow rate of 375 mL/min. Residence time distribution of packed bed reactor was calculated at two flow rates with pulse injection of tracer into reactor inlet. © 2016 Published by Elsevier Ltd.
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