Fig. 1.

Estimated results for the co-incinerated waste feedstock (CIWF) with different clinical waste (CW) co-incineration ratios in wet basis. Lower heating values (LHV) of CIWF based on Dulong formula (A); LHV of each component of municipal solid waste and CW from the literatures (B); concentration of HCl in flue gas (C); and concentration of SO₂ in flue gas (D). Median, 25th, and 75th percentiles are plotted as the horizontal solid lines of the boxes. The six-pointed stars represent mean values. The upper and lower whiskers extend to data no more than 1.5 times of the interquartile range from the upper and lower edge of the box, respectively. The black dots represent outliers. The results obtained with different CW co-incineration ratios were compared (P values were computed using Student's t-test, *** denotes P < 0.001, i.e., difference in mean value is statistically significant).