 With geomelting, however, the treatment (melting) process is essentially the same for each batch, as is the glass produced, regardless of the contaminants in the mixture.Due to this versatility, geomelting is employed in many hazard-control operations.GeoMelt is used to treat a variety of organic wastes including oils, pesticides and herbicides, solvents and persistent organic pollutants including polychlorinated biphenyls (PCBs), dioxins, and furans (GeoMelt is permitted by the U.S. Environmental Protection Agency (EPA) as an approved thermal treatment method for PCBs throughout the U.S.