Reactions between radicals and dissolved substances, e.g., phosphate buffer, carbonate ions and trace organics were included in the SBH (staehelin, Buhler, Hoigne) aqueous ozone decomposition model. Ozone decomposition rate obtained in laboratory stud...
Reactions between radicals and dissolved substances, e.g., phosphate buffer, carbonate ions and trace organics were included in the SBH (staehelin, Buhler, Hoigne) aqueous ozone decomposition model. Ozone decomposition rate obtained in laboratory studies and the calculated rate by this extended SBH model agreed satisfactorily.
Odorous compound and humic substances were also included in the extended SBH model. Numerical analysis on the decomposition rate of the odorous compound was in good agreement with the results of laboratory studies, i.e. the decomposition rate initially increased with increase in the concentration of humic substances; reached maximum; and then decreased with further increase in the concentration of humic substances. And the role of humic substances on the decomposition of the odorous compound by ozone was elucidated by the model.