Batch kinetics and effects of process parameters for biodegradation of Reactive Black 5 in an aerobic mixed microbial culture / Jagannathan Krishnan and Siti Rabiatul Adawiyah Ibrahim

Krishnan, Jagannathan and Ibrahim, Siti Rabiatul Adawiyah (2013) Batch kinetics and effects of process parameters for biodegradation of Reactive Black 5 in an aerobic mixed microbial culture / Jagannathan Krishnan and Siti Rabiatul Adawiyah Ibrahim. Scientific Research Journal, 10 (2). pp. 1-16. ISSN 1675-7009

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Abstract

Mixed microbial culture used in this study was developed from sludge that was taken from local textile wastewater treatment tank. Acclimatization process was performed before starting the biodegradation experiment to obtain a microbial culture with high degradation properties. Kinetic studies by the mixed microbial culture were determined quantitatively for the model pollutant, Reactive Black 5 (RB 5). By using Michaelis-Menten model, the constants were found to be 11.15 mg 1-¹ h-¹ and 29.18 mg 1-¹ for Vm and Km respectively. The values of kinetic constants for Monod model were found to be 33.11 mg I-I cell h-¹ for the maximum specific microbial growth rate, µm and 86.62 mg 1-¹ for Monod constant, Ks ' The effects of process parameters such as pH, inoculum size and initial dye concentration on the biodegradation of azo dye, RB 5 were systematically investigated. Maximum removal efficiencies observed in this study were 75% for pH 6, 100% for 15% inoculum concentration and 750/0 for 20 ppm of initial dye concentration.

Item Type: Article
Creators:
CreatorsID Num.
Krishnan, Jagannathanjagannathan@salam.uitm.edu.my
Ibrahim, Siti Rabiatul AdawiyahUNSPECIFIED
Subjects: Q Science > QP Physiology > Animal biochemistry > Biodegradation
Q Science > QR Microbiology > Cultures and culture media. Culture technique.
T Technology > TP Chemical technology > Reactive dyes
Divisions: Research Management Institute (RMI)
Journal or Publication Title: Scientific Research Journal
ISSN: 1675-7009
Volume: 10
Number: 2
Page Range: pp. 1-16
Item ID: 13045
Uncontrolled Keywords: Kinetic study, Mixed microbial culture, Reactive Black 5, Biodegradation
Last Modified: 30 May 2016 04:25
Depositing User: Staf Pendigitalan 1
URI: http://ir.uitm.edu.my/id/eprint/13045

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