Pulp and Paper Industry Effluent Decolourization Kinetics with Ozone and Titanium Dioxide

International Journal of Applied Chemistry

© 2019 by SSRG - IJAC Journal

Volume 6 Issue 1

Year of Publication : 2019

Authors : Upendra Prasad Tripathy

10.14445/23939133/IJAC-V6I1P110

How to Cite?

Upendra Prasad Tripathy, "Pulp and Paper Industry Effluent Decolourization Kinetics with Ozone and Titanium Dioxide," SSRG International Journal of Applied Chemistry, vol. 6,  no. 1, pp. 68-75, 2019. Crossref, https://doi.org/10.14445/23939133/IJAC-V6I1P110

Abstract:

Ozone, a potential oxidant has become the most important innovation for ultimate treatment of all types of organic / inorganic impurities in water and waste water by oxidation process. It can be safely and effectively used for the decolourization of effluents from pulp and paper industry. The pulp mill of paper industry is a water intensive and producing large volume of effluents containing different organic and inorganic substances which include residual ionic species, ligneous fragments of organic solids etc. The pollutants in the effluent should be removed before their discharge to water sources. An attempt has been made to study the impact of catalytic amount of TiO2 on the ozonation of coloured effluent with the variation of pH, temperature, catalyst and ionic strength. Again, the decolourization kinetics of post oxygen stage effluent of pulp and paper industry using bamboo and hardwood (20: 80) as furnish has been studied at temperature range 25-50oC using laboratory generated ozone. The ozonation reactions follow a pseudo first order disappearance of colour and the rate constant increases with increase in ozone concentration.

Keywords:

Ozone, Colour, Effluent, Kinetics, Pulp mill, Catalyst, Wood

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