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Performance of Combined Adsorption and Biological Process in Decolorization and Demineralization of Dye Wastewater


Affiliations
1 Centre for Environmental Engineering, PRIST University, Thanjavur-613403, Tamil Nadu, India
 

This work studies the performance of combined adsorption and biological processes for degradation of crystal violet (CV) in wastewaters. The results were compared with biodegradation experiments conducted without adsorption. Activated rice husk was used as an adsorbent whereas, mixed culture was used for biological experiments. Effect of glucose concentrations and initial concentrations of dye were studied in detail. It was observed that combined degradation was very effective in removing CV from wastewaters. Adsorption with rice husk significantly increased the mineralization capacity of pollutants. Mineralization of actual textile effluents from textile industry also revealed the superior nature of combined treatment in comparison to biodegradation of dyes in wastewater.

Keywords

Crystal Violet (CV), Adsorption, Biodegradation, Decolourization, Mineralization.
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  • Performance of Combined Adsorption and Biological Process in Decolorization and Demineralization of Dye Wastewater

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Authors

P. Anantha Narayanan
Centre for Environmental Engineering, PRIST University, Thanjavur-613403, Tamil Nadu, India
V. Ishwarya
Centre for Environmental Engineering, PRIST University, Thanjavur-613403, Tamil Nadu, India
Mukesh Goel
Centre for Environmental Engineering, PRIST University, Thanjavur-613403, Tamil Nadu, India
Ashutosh Das
Centre for Environmental Engineering, PRIST University, Thanjavur-613403, Tamil Nadu, India

Abstract


This work studies the performance of combined adsorption and biological processes for degradation of crystal violet (CV) in wastewaters. The results were compared with biodegradation experiments conducted without adsorption. Activated rice husk was used as an adsorbent whereas, mixed culture was used for biological experiments. Effect of glucose concentrations and initial concentrations of dye were studied in detail. It was observed that combined degradation was very effective in removing CV from wastewaters. Adsorption with rice husk significantly increased the mineralization capacity of pollutants. Mineralization of actual textile effluents from textile industry also revealed the superior nature of combined treatment in comparison to biodegradation of dyes in wastewater.

Keywords


Crystal Violet (CV), Adsorption, Biodegradation, Decolourization, Mineralization.

References