George Mark Goyak
Engineers in Murrysville, PA

5613452, Mar 25, 1997

Mar 30, 1995

8/419292

Primo Marchesi - Lock Haven PA
George M. Goyak - Murrysville PA

American Color and Chemical Corporation - Lock Haven PA

F23J 1500, B09B 300

110215

A method and apparatus are provided for remediating contaminated soil having volatilizable organic pollutants in a heated treatment zone, preferably a rotary drum, in gas/solids contact with superheated steam. Treatment gases from the treatment zone are repressurized and reheated for reuse in the treatment zone. Superheated steam is maintained in a closed loop and is maintained at superheated conditions. Vaporized organic pollutants and superheated steam are removed from the closed loop of superheated steam for cooling and condensation to condense water and condense liquid volatilizable organic pollutants and uncondensed organic pollutant vapors.

5187131, Feb 16, 1993

Sep 13, 1991

7/759882

Donald D. Tiggelbeck - Pittsburgh PA
George M. Goyak - Murrysville PA

Tigg Corporation - Pittsburgh PA

B01J 2034, B01J 3804, B01J 3734, B01D 5106

502 34

Method and apparatus for in-situ regeneration of particulate adsorbent in a vessel including: heating the adsorbent, passing inert gas through heated absorbent to collect vaporized adsorbate, chilling the inert gas to condense adsorbate, thereafter lowering the pressure within the vessel, collecting withdrawn gases containing volatilized adsorbate, and chilling the withdrawn gases to condense adsorbate.

5378367, Jan 3, 1995

Nov 25, 1992

7/981601

Gary A. O'Neill - Tyngsborough MA
George M. Goyak - Murrysville PA

Aluminum Company of America - Pittsburgh PA

C02F 128

210669

A method for treating a pulp and paper manufacturing stream to remove colorants therefrom comprises: contacting the stream with a first adsorbent comprising the calcined product of a compound having the formula: A. sub. w B. sub. x (OH). sub. y C. sub. z. nH. sub. 2 O, wherein A represents a divalent metal cation; B a trivalent metal cation; C a mono- to tetravalent anion; and w, x, y, z and n satisfying the following: 0<z. ltoreq. x. ltoreq. 4. ltoreq. w. ltoreq. 1/2y and 12. gtoreq. n. gtoreq. 1/2(w-x); then contacting the stream with a second adsorbent consisting essentially of activated carbon. On a preferred basis, the first contacting adsorbent is a hydrotalcite derivative made by reacting activated magnesia with an aqueous solution of aluminate, carbonate, and hydroxyl anions before calcining at one or more temperatures between about 400. degree. -650. degree. C. There is further disclosed means for removing dioxins and adsorbable organic halogens, especially chlorinated phenols, from waste water solutions using the aforementioned combination of adsorbents.

5656178, Aug 12, 1997

Apr 29, 1993

8/055428

Primo Marchesi - Lock Haven PA
George M. Goyak - Murrysville PA

American Color And Chemical Corp. - Lock Haven PA

C02F 100

210770

A method is provided for the treatment of contaminated materials such as impounded sludges and contaminated soils by thermal desorption wherein a solid matrix is subjected to the action of superheated steam in a closed vessel, a gas stream comprising superheated steam is recirculated to the vessel and recirculation of the superheated steam is continued until organic constituents are separated therefrom to predetermined concentrations that are environmentally insignificant and within the limits prescribed by governmental regulations.