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Optimization of Biosorption of Reactive Blue 222 by Dead Biomass of Rhizopus arrhizus NCIM997 Using Response Surface Methodology by Saraf, Sukhada; K Vaidya, Varsha is a Environmental Science article available to read on EtoBox.

What is Optimization of Biosorption of Reactive Blue 222 by Dead Biomass of Rhizopus arrhizus NCIM997 Using Response Surface Methodology about?

The present investigation deals with utilization of dead fungal biomass of Rhizopus arrhizus NCIM 997 as a low-cost biosorbent and optimization of conditions for the removal of Reactive Blue 222 dye from aqueous solution using sequential statistically designed experiments. Plackett -Burman design with six independent variables (pH, concentration of dye, concentration of biosorbent, temperature, speed of agitation and contact time), was used initially to identify the most significant factors influencing biosorption. Path of Steepest Ascent was then used to move towards the vicinity of optimum operating conditions. Central Composite Design at the specified combinations of four significant factors identified by Plackett-Burman Design (pH, concentration of dye, concentration of biosorbent, contact time) and response surface analysis were then adopted to investigate mutual interactions between these variables and to identify their optimal values. The maximum sorption (72.89 mg g -1 ) was obtained under following conditions: pH 1.5, initial concentration of dye 88 mgL -1 , concentration of biosorbent 1.2 gL -1 and contact time 111 min. Validation experiments showed excellent correlation

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Author

Saraf, Sukhada; K Vaidya, Varsha

Publisher

OMICS Publishing Group (ISSN 2469-9764)

Published

2016

Language

EN

Field

Environmental Science (Physical Sciences)