METHOD AND APPARATUS FOR USING
OZONE IN A PRESSURE VESSEL TO TREAT
STREAM OF POLLUTANTS
 Inventors: David J. Hill, Lincoln Park; Frederick J. Hoitash. Ypsilanti, both of Mich.
 Assignee: Huron Valley Technology, Inc.,
 Appl. No.: 480,314
 Filed: Jun. 7,1995
 Int CI.6 C02F 1/78
 U.S. CI 210/748; 210/760; 210/205;
210/218; 210/220; 210/252; 210/254; 261/113; 261/123; 261/124; 261/DIG. 42; 422/194;
422/220; 422/231; 422/257
 Field of Search 210/748, 760,
210/205, 218, 220, 252, 259; 261/113, 123, 124, DIG. 42; 422/194, 220, 231,
 References Cited
5,186,907 2/1993 Yanagi et al. .
5,190,659 3/1993 Wang et al. .
5,234,606 8/1993 Kazatna et al. .
5,236,602 8/1993 Jackson.
5,302,298 4/1994 Leitzke.
5,308,480 5/1994 Hinson et al. .
5,374,356 12/1994 Miller et al. .
McGraw-Hill Encyclopedia of Science & Technology, 1987, vol. 16, pp. 295-297 and 302-305.
McGraw-Hill Encyclopedia of Science & Technology, 1987, vol. 19, pp. 323-329 and 334-336.
Primary Examiner—-Neil McCarthy
Attorney, Agent, or Firm—Harness, Dickey & Pierce, P.L.C.
A photocatalytic oxidation and ozone catalyst system utilizes ultraviolet light and ozone in the treatment of waste and wastewater to destroy pathogens and to break down most hydrocarbons and other chemicals into non-hazardous forms. The wastewater enters the system for initial treatment and is also pumped through the venturi loop and is exposed to ultraviolet light. The ozone interacts at the venturi before the ultraviolet light is being used as a catalyst by the ultraviolet light to break apart the double bonds of ketones, aldehydes, esters, and carboxylic acids. Following initial treatment, the wastewater is pumped into the pressurized ozone enhancement vessel where vapor oxidation of the polluting chemicals occurs. The enhancement vessel comprises a liquid spray component and a series of ozone resonator plates having ozone distribution manifolds that spray the wastewater with ozone. The plates have angular channels formed therein through which the wastewater passes. The channels are formed to maximize absorption of the ozone by the wastewater which exits the vessel in a treated form.
10 Claims, 4 Drawing Sheets