Emission Control


  • Fisher, G.M., U.S. Patent 1,985,491, December 25, 1934
    Froth for Sealing Volatile Liquids
  • Barthauer, G.L., U.S. Patent 3,479,285, November 18, 1969
    Foam Producing Materials and Method for Atmospheric Control with High Expansion Foam
  • Johnston, B. J., U.S. Patent 4,127,383, November 28, 1978
    Foaming Waste Treatment Composition and Method for Treating Nitrogenous Waste Material Therewith
  • Chay, D.M., U.S. Patent 4,284,601, August 18, 1981
    Surfactant Foams and Their Use
  • Kent, D.W., U.S. Patent 4,795,590, January 3, 1989
    Treatment of Hazardous Material with Vapor Suppressing Persistent, Water-Containing, Polymeric Air Foam
  • Kittle, P.A., U.S. Patent 4,874,641, October 17, 1989
    Method of providing a Barrier Between a Substrate and the Atmosphere and Compositions Therefor
  • Kittle, P.A., U.S. Patent 4,990,373, February 5, 1991
    Membrane-Forming Foam Composition and Method
  • Stern, R.M., U.S. Patent 5,026,735, June 25, 1991
    Treatment of Hazardous Materials with Aqueous Air Foam of Polyhydroxy Polymer
  • Thach, S., U.S. Patent 5,434,192, July 18, 1995
    High-Stability Foams for Long-Term Suppression of Hydrocarbon Vapors
  • Nachtman, T. J., U.S. Patent 5,556,033, September 17, 1996
    Apparatus for Forming a Foamed Outdoor Protective Cover Layer
  • Aubert, W.G., U.S. Patent 5,782,580, July 21, 1998
    Soil Remediation Method
  • Nachtman, T. J., U.S. Patent 5,849,364, December 15, 1998
    Self-Foaming Sprayable Composition
  • Nachtman, T. J., U.S. Patent 5,897,946, April 27, 1999
    Flowable Material to Isolate or Treat a Surface
  • Nachtman, T. J., U.S. Patent 6,096,373, August 1, 2000
    Sprayable Composition and Method for Forming a Foamed Outdoor Protective Cover Layer
  • Hayes, T.D., U.S. Patent 6,210,955, April 3, 2001
    Foam Transport Process for In-Situ Remediation of Contaminated Soils



C.E. Schmidt is the co-inventor of the flux chamber, the technology used to measure the emissions in these studies. He is the co-author of the primary text on the subject, "Assessment and Control of VOC Emissions from Waste Treatment and Disposal Facilities," Van Nostrand Reinhold, New York, 1993, ISBN 0-442-01229-2. His consulting firm can be contacted at 19200 Live Oak Road, Red Bluff, CA 96080, telephone, 530-529-4256, fax, 530-529-4878, or by using his email address, or his web page.

Foams have been used for VOC and odor control in the following typical applications: sanitary and hazardous, landfill excavation, leachate storage tanks, sanitary landfill leachate breakouts, storage ponds, storage tanks, material transportation, hazardous landfills, water and sewage treatment plants, sludge storage areas, dredging operations, pond closures, chemical spills, and accidents.

The Institute of Gas Technology has published a paper on the use of foam for delivering "chemicals and bioactivity stimulating amendments" to sludge lagoons at former manufactured gas plants: Hayes, T.D. and Srivastava, V.J., "Foam Mediated Remediation Technology for Gas Industry Applications," in Proceedings of the International Gas Research Conference, Cannes, France, Gas Research Institute, Chicago, Illinois, November 6-9, 1995.