Abstract: A process is disclosed for the elimination of perchloroethylene from the waste products of the dry cleaning solvent recycling process. The process consists of placing the solutions and objects contaminated with the perchloroethylene in a containment chamber, and adding ozone to the chamber until the perchloroethylene is eliminated from the waste products. The addition of catalysts or ultraviolet light to the process can increase the speed of elimination of the perchloroethylene. Another feature would re-circulate ozone that has escaped from the solution to improve the efficiency and reduce energy input into the process.

Abstract: A sealed glass tube having an electrical conductor therein arranged when combined with a high voltage and an encircling perforated metal member on the tube to produce ozone. The tube has an electrically conducting cap fitted on and integrally secured to one end thereof, and an externally threaded adapter is mounted on the cap for quick attachment to and detachment from an ozone generator manifold. The conductor has a projecting end secured to an outer end wall of the cap, and such wall in turn has a lug attached thereto providing quick attachment to a source of high voltage.

Abstract: A sealed glass tube has a gaseous filling which when subjected to high voltage produces a radiation of energy through the tube. An elongated electrical conductor is mounted lengthwise in the tube and subjects the gaseous filling to high voltage to provide electrical communication with the exterior of the tube and form ozone with an encircling perforated metal grid. The tube is supported within the grid by spacers secured to internally facing valleys of the fluted grid. The flutes of the grid extend fully from one end to the other to provide maximum output. In a preferred form of the invention, the rearward end of the conductor is slidably supported to for expansion and contraction. Also, the conductor includes an auxiliary portion extending through and having sealed relation with one end of the tube, the auxiliary portion having a wound connection to the conductor.