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Effective Iron-accumulating Bacteria Isolated from Chemical Laboratory Drainage for Iron Removal
 
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1
Research Centre for Sustainable Process Technology (CEPSRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi Selangor, Malaysia.
 
2
Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi Selangor, Malaysia.
 
3
Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi Selangor, Malaysia
 
4
Hebei University of Technology, School of Civil Engineering and Transportation, 5340 Xiping Road, Beichen District, Tianjin, 300401, China
 
 
Publication date: 2021-02-01
 
 
Corresponding author
Hassimi Abu Hasan   

Research Centre for Sustainable Process Technology (CEPSRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi Selangor, Malaysia.
 
 
J. Ecol. Eng. 2021; 22(2):187-194
 
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ABSTRACT
Improperly treated heavy metal wastewater discharged into water sources could cause a serious issue for the environment. The aim of this study was to bioaccumulate iron (Fe) using native bacteria isolated from the laboratory drainage water containing a high concentration of iron. The experiment was conducted in 250 mL conical flasks containing 150 mL Fe solution in concentrations of 25, 100, and 250 mg/L, respectively. Approximately 10% of bacteria inoculum was cultivated in each Fe concentration for 24 and 48 hours. The results showed that Pseudomonas hibiscicola was identified as an effective iron-accumulating species of bacteria. The species could remove Fe up to 82% (25 mg/L), 77.8% (100 mg/L) and 32% (250 mg/L). This promising result indicates that the native bacteria isolated from the environment pose a great potential for the remediation of wastewater containing iron.
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