ON MASS TRANSFER COEFFICIENT OF VOLATILE ORGANIC COMPOUNDS IN OPEN-AIR WATER BASINS AT CALM

摘要

The hypothesis of constant values of gas-film and liquid-film mass transfer coefficients at calm and their influences on overall mass transfer coefficients was verified. Laboratory experiment was conducted. Experimental data for 9 compounds were processed through an analysis of variance (ANOVA) test. Statistical verification of the 18 experimental values, obtained for 9 individual compounds, confirms the hypothesis that at calm conditions the differences in the overall mass transfer coefficients for individual compounds are statistically insignificant. The Student t-test was used to compare experimental results with calculated values by using the models of Mackay and Bunyakan. All experiments were conducted under control of the dissolved oxygen in the model mixture.