The complex of theoretical, experimental and applied investigations connected with the application of the electroactivation method for correction of natural and waste water properties has been carried out. Principle of operation of electroactivation is concluded in following scheme: influence of electric current on liquid properties while it flows in electrochemical systems, divided by semi-permeable membranes. Investigations carried out in this area revealed the possibility of nonreagent changing the natural waters properties, e.g. by varying pH from 1.5 to 14. Thus, full disinfection and purification from heavy metal ion may be achieved. On base of the research work the approach was elaborated which specified the complete cycle of disinfection treatment regard to waste waters and slurry in conditions of stock-farming and poultry production. The above method was tested in corresponding conditions and confirmed its efficiency.