In the original publication of the article, the figures 2, 3, and 4 are in the correct order, but the captions are not corresponding. The figures 2, 3, and 4 with the correct captions are given below: Fig. 2 Specification of the influence of surfactants in the medium comparing experimentally measured rising bubble velocities with data from the literature (Clift et al. 1978) for contaminated and pure waterThe online version of the original article can be found under