Gas production by accelerated in situ bioleaching of landfills
Filtering method and apparatus
Waste disposal landfill
Process for recovering gases from landfills
Method and apparatus for the purification of waste air containing biologically decomposable impurities
Method of removing contaminants from contaminated soil in situ
Oxidation of toxic compounds in water
Apparatus and method for confining and decontaminating soil
Flooded biological film reactor for water treatment, with gas charging via a membrane
ApplicationNo. 701110 filed on 05/16/1991
US Classes:405/128.3, At spaced locations210/615, Utilizing contact surfaces supporting microorganism (e.g., trickling filter, etc.)210/629, And internally circulating the liquid210/760, Utilizing ozone435/266Treating gas, emulsion, or foam
ExaminersPrimary: Taylor, Dennis L.
Assistant: Ricci, John A.
Attorney, Agent or Firm
Foreign Patent References
International ClassB10D 003/38
AbstractA system and method for the decontamination of contaminated ground is described. Contaminated soil gas containing the contaminant is removed from the contaminated ground. Contaminants are separated from the contaminated gas and treated to lessen an environmental hazard of the contaminant. Contaminants are preferably treated by non-thermal oxidation. Residual soil gas, including any oxygen, unoxidized contaminants, and oxidation products (water vapor and carbon dioxide) are returned to the ground, where unoxidized contaminants are subject to oxidation by soil microorganisms. The returned residual soil gas is recirculated through the decontamination system.
Field of SearchIncluding collecting or storing gas (e.g., fuel, carbon monoxide, etc.)
Utilizing contact surfaces supporting microorganism (e.g., trickling filter, etc.)
In bed form
And internally circulating the liquid
And additional treating agent other than mere mechanical manipulation (e.g., chemical, sorption, etc.)
Treating gas, emulsion, or foam