The technology of plasma neutralization of hazardous waste processing products is investigated. The problem of supertoxicants (polychlorinated dibenzodioxides, dibenzofurans, biphenyls, etc.) formation in the process of thermal processing for household and industrial waste of different composition is noted. To solve this problem, we propose the use of plasma generators in environmental technologies, in which due to the high - energy plasma effect on substances of different phase composition, their deep decomposition (plasma incineration - "burning") occurs. The introduction of plasma torches at the afterburning stage of gaseous products of hazardous waste processing is considered as a rational method of plasma neutralization. Known methods of thermal neutralization of dioxins are considered. Temperature approximations of the dioxins decomposition time in the temperature range of plasma heating are found. Efficiency criteria of plasma heating and neutralization are introduced. In addition to the previously studied technology of plasma neutralization, a modernized design of a plasma torch for utilization of gaseous supertoxicants waste processing is proposed. The gas-dynamic parameters of the air-plasma flow in the mixing chamber of the plasma torch for environmental technologies are determined by mathematical modeling methods. The characteristic temperatures, velocities and heating times of the utilized gas in different areas of the mixing chamber are determined. The directions of further research and development necessary for the creation of plasma incineration technology with maximum efficiency of disinfection are outlined.