Drinking water treatment technology for microbial contamination by means of cavitation method

Abstract

The aim of the work is to undertake systemic research of the treatment process of drinking water contaminated with micro-organisms by means of cavitation method; development of technology and creation of experimental treatment system that will significantly reduce the cost and ensure high quality of treatment process. A jet micro-cavitator with the capacity of 5-10 l/h has been developed to conduct laboratory research. The selection of design of the cavitator was based on the following: low consu-mption of sample liquids, pressure range 1-5 bar, simple and flexible design. The novelty of the created activator is due to the fact that, as of today, activator with such a low capacity does not exist. On the basis of the research, cavitation and filtration were identified as two main nodes of the treatment system. Cavitation technology for treatment of the microbially contaminated drinking water has been developed and optimal technological parameters have been defined for the treatment. Target experi-mental technological system has been created. Water obtained in the system meets the requirements of drinking water techno-logical regulation by its organoleptic, physical and chemical as well as microbiological parameters. The proposed system, in future may become a new technical installation for treatment of drinking water sharply reducing the costs of appropriate devices and simplifying their application and ensuring high level of safety.