Grants and Contributions:

Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019).

Ozonation is an effective process for the degradation of colour residues that are recalcitrant to biologicalx000D
treatment in industrial effluents. A major advantage of ozonation is that, it generally does not generate anyx000D
additional waste streams that require further treatment (for example filtration does so). The selectivity of ozonex000D
towards coloured and recalcitrant compounds, however, is dependent on characteristics of the effluent. This isx000D
especially of importance because ozone should not be used to treat organics that are easily biodegradable andx000D
can be removed via conventional biological processes. Hence, a thorough laboratory-scale assessment ofx000D
efficiency of ozonation in selective removal of recalcitrant compounds from a coloured effluent is required tox000D
understand the advantages and limitations of this technology and to draw economic conclusions on itsx000D
commercial-scale application.x000D
This research is initiated by the University of British Columbia (UBC) and involves active participation of BCx000D
Research Inc. (BCRI). The main objective of this project is to research efficiency of ozonation for the removalx000D
of residual colour from an effluent produced in the mono-nitrobenzene production process.x000D
The first and second stages of the project will involve identification of the important process parameters andx000D
design of a test plan to study the effect of each parameter on colour removal efficiency. The third stage willx000D
execute the designed test plan in a lab-scale ozone contactor, which is available in our laboratory, andx000D
determination of the kinetics of the oxidation process, and identification of the importance of differentx000D
parameters. The last stage will focus on testing the optimum operating parameters in a larger scalex000D
flow-through ozonation unit, which is also available in our laboratory.