Abstract: An apparatus and method for the treatment of contaminated water by biodegradation is provided. In particular, the apparatus and method are suited for the biodegradation of volatile organic compounds (VOC's) such as trichloroethylene and related compounds or benzene and related compounds. The process employs an immobilized soil bioreactor (ISBR) having a headspace re-circulation system.
Type:
Grant
Filed:
May 5, 1998
Date of Patent:
February 29, 2000
Inventors:
Dimitar Karamanev, Stephane Pierre, Chantal Lafontaine, Bruce Ramsay
Abstract: A process and apparatus for the removal of aromatic amines from soil and water is described. In particular, treatment trains are described in which soil washing or low temperature desorption process effect removal of contaminant, such as xylidines from soil and steam stripping is utilized to remove contaminant from water. Further treatment through organic acid precipitation and advanced oxidation produce clean water and precipitated salts which may be recovered.
Type:
Grant
Filed:
June 6, 1997
Date of Patent:
July 6, 1999
Assignee:
Her Majesty the Queen in right of Canada, as represented by Environment
Inventors:
Harry Whittaker, Valdis Kokars, Janis Avotins, Laura Ouellette
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