Abstract
The article presents the results of the analysis and creation of a classification of power electromagnetic pulse systems based on the theory of a single spatial electromagnetic field developed by the authors. The purpose of the work is to study the phenomena in a single spatial electromagnetic field disinfection of water with a single spatial electromagnetic field, the theory of a single spatial field involves the interaction of four fields: pulsed electromagnetic, pulsed electric, permanent magnetic and gravitational. The theory of a single spatial field is substantiated, which allows us to consider the issues of effective disinfection, desalination and purification of water, as well as to study the influence of electric, magnetic fields and electromagnetic waves on physical, chemical and biological processes occurring in liquids.