Related Experiment Video
Updated: Jul 15, 2026

Original Experimental Approach for Assessing Transport Fuel Stability
Published on: October 21, 2016
Kinetic study of ozonation of molasses fermentation wastewater
1Departamento de Ingeniería Química y Tecnología del Medio Ambiente, Universidad de Valladolid, P Prado de la Magdalena s/n, 47011 Valladolid, Spain. monica@iq.uva.es
Abstract:
A kinetic study of molasses wastewater ozonation was carried out in a stirred tank reactor to obtain the rate constants for the decolorization reaction and the regime through which ozone is absorbed. First, fundamental mass transfer parameters such as ozone solubility, volumetric mass transfer coefficients and ozone decomposition kinetics were determined from semi-batch experiments in organic-free solutions with an ionic composition similar that of industrial wastewater. The influence of operating variables such as the stirring rate and gas flow rate on the kinetic and mass transfer parameters was also studied. The application of film theory allows to establish that the reactions between ozone and colored compounds in wastewater take place in the fast and pseudo-first-order regime, within the liquid film. The decolorization rate constants were evaluated at pH 8.7 and 25 degrees C, varying from 0.6 x 10(7) to 3.8 x 10(7)L mol(-1)s(-1), depending on the stirring rate and the inlet gas flow.
More Related Videos
09:49Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency
Published on: September 11, 2016
07:13Extraction of Ramie Fiber in Alkali Hydrogen Peroxide System Supported by Controlled-release Alkali Source
Published on: February 6, 2018
Related Concept Videos
Bioreactor Controls-II
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Production of Alcohol
Production of Organic Acids
Microbial Wastewater Treatment
Biological Treatment of Effluent and Waste Water