ABSTRACT
Since the mid-1990s there has been an increase in the interest shown around the world regarding the use of hydrodynamic cavitation to remove toxic organic and biological pollutants, which find their way into natural water basins in a more or less uncontrolled manner. The positive results of many pilot studies and those conducted on a laboratory scale indicate a wide range of possibilities for its application. An increase in the effluent treatment quality standards means that, in the case of effluent of specific composition, the recommendation is to use more effective treatment technologies. One can include two or multi-stage purification systems, which achieve a manifold reduction of wastewater pollution, compared with that obtained when each of the processes is used separately. One of the options under consideration is the possibility of integrating into the sewage treatment system chemical oxidation processes, including those utilising hydrodynamic cavitation, acting upon the relatively low-cost biological processes.
