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Experimental research into the electrical and optical parameters of pulsed dielectric barrier discharge (PDBD) was undertaken. PDBD was applied to humid air containing water droplets as a means of water oxidative treatment with short-living species generated in the discharge zone. In spectral analysis of PDBD, only small concentrations of nitric oxides were detected at the resulting electric field strength and electron mean energy sufficient for generation of OH-radicals. The water droplets served as electric field strength concentrators: PDBD was ignited close to the water droplets' surface.

Tribological properties of nanolamellar tungsten disulfide doped with zinc oxide nanoparticles were studied. Nanolamellar tungsten disulfide and ZnO nanoparticles produced by electrospark erosion of metal granules in an H2O2 solution were analyzed using the XRD, SEM and TEM techniques. According to the tribological measurements, ZnO nanoparticles did not significantly change the friction coefficient of nanolamellar WS2 at 25 °C in air, whereas they positively impact on wear resistance of nanolamellar WS2 at 400 °C.

Tribological behavior of Cu–MoS2 and Ag–MoS2 nanocomposite lubricant was studied. Cu nanoparticles produced by electrical explosion of copper wires and Ag nanoparticles prepared by electrospark erosion were employed as metal cladding modifiers of MoS2 nanolamellar particles. The tribological tests showed Cu–MoS2 and Ag–MoS2 nanocomposite lubricants changed the friction coefficient of the initial grease and essentially improved its wear resistance.

Power expenditure for water purification to remove arsenic(V) was determined. The processes and kinetics of purification in an electric-discharge reactor with a metallic (aluminum or iron) charge were investigated. The purification mechanisms based on the adsorption of arsenic(V) on a fresh surface of hydroxides formed through dispersion and subsequent oxidation of a charged metal were suggested. Rate equations corresponding to the experimental data and to these mechanisms were given.One of problems accompanying many commercial processes, especially those in the metallurgical industry, is effective removal of arsenic and other toxic elements from wastewater. Methods for arsenic removal from wastewater can be combined in two groups: those with and without reagents. The second group includes galvanocoagulation, electrocoagulation, and electropulse water purification.