Fig xA and xA Fig

The slope of the breakthrough curve slightly decreased with increasing bed height, which represents a broadened mass transfer zone [22]. As indicated by the Half Normal plot and the corresponding ANOVA [23] performed by means of the Design-Expert® 7.0 software ( Fig. 5, Table 4) the bed height is the factor that influences breakthrough the most, and should be the first taken into account when designing a fixed bed column from C. crinitophylla biomass.