Bioremediation of Industrial Wastewater

ISBN-13: 9783848403943 / Angielski / Miękka / 132 str.

Parin Shah; Dipti Galani; M. S. Rao

Opis

Reactive dyes containing diazo bonds are more resistant to anaerobic reduction in comparison to monoazo dyes. Reactive Yellow-145 (RY-145) which is used as a model dye is a diazo dye having -SO3H group in its structure. A novel bacterial consortium was isolated from the soil samples of a local dye manufacturing unit at Ahmedabad, Gujarat, India. This culture was used for decolorization parametric study of RY-145 under various operating conditions. The consortium was successfully able to decolorize, 300 mg l-1 of selected dye up to 97% within 11 h under static facultative conditions at pH 7.0 and 37°C temperature. The UV - Visible Spectroscopic analysis results indicate the decolorization of dye. The HPLC and FTIR results confirm degradation of RY-145 into smaller compounds. For the commercial viability, combination of specially prepared synthetic medium and extract of agriculture waste is used as a growth medium for consortium in place of nutrient broth. COD reduction of nearly 70% is achieved for 20 times diluted industrial wastewater. Specially designed continuous column reactor (PMSCCR) has also been used for batch and continuous study of decolorization of RY-145.

O autorze

Prof. Parin Shah is currently working as an Associate Professor in Chemical Engineering Department,Nirma University, Ahmedabad. He has been teaching undergraduate and post graduate students for more than 12 years. Besides teaching, he also undertakes consultancy assignments in the field of energy audit and pollution control.