Considering that chaos is the only way to enhance mixing performance for such a high viscous fluid, we propose mechanically simple but highly effective designs for the mixing tank, which enables periodic reorientation of material elements by the stream surface crossing mechanism [1-3]. For a specific case of four paddled impeller as an example, we introduce a theoretical dynamical systems modeling that predicts existence of dominant homoclinic tangling and small regions governed by usual near-integrable structures (resonance bands and KAM tori). And prototypical flow will be presented by using of a disk impeller for experimental observation and computational inspection of geometrical and dynamical effects. In addition, general aspects of chaotic transports in industrial mixing vessels will be discussed. The experimental flow visualization results will be presented that verify the presence of the dynamical systems structures. The quantitative evaluation of the mixing performance through measurement of unmixed zones (resonance bands and KAM tori) by means of image processing techniques will be processing techniques will be presented. Especially numerical simulation results will be presented that the dynamical systems structures through the Poincare section and quantitative evaluation of the mixing performance by Liapunov exponents for disk impeller case.