Document Type : Research Paper

Authors

1 Anbar Education Directorate

2 University of Anbar - College of Science

3 University of Baghdad - College of Science

10.37652/juaps.2015.127614

Abstract

The present study involved collection of 30 Al-Ramady General Hospital sewage, five samples for each 15 days from the treatment unit for the period October 2014 to February 2015 in triplicates. Six bacterial isolates were identified: Aeromonashydrophila, Aeromonassobria, Escherichia coli, Klebsiella pneumonae, Staphlyococcushominis and Staphylococcus aureus. All these isolates were tested for their ability to remove lead from its aqueous solutions. Significant differences (P< 0.05) were found among bioremoval capacity which were as follows 11.3 ± 5.5, 11.8 ± 5.4, 14 ± 10, 62.2 ± 28.9, 19.6 ± 2.2 and 12.3 ± 7, respectively. However, K. pneumoniae achieved the highest removal capacity. Results revealed a variable minimum inhibition concentration (MIC) of lead among the tested isolates. Furthermore, K. pneumoniae showed the highest MIC reached 3200 mg/ml; whereas, A. sobriadeveloped the lowest MIC reached 500 mg/ml. upon FTIR analysis, hydroxyl, amide, carboxyl and amine were the active sites for lead binding.

Main Subjects

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