The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2007
Filed:
Nov. 09, 2000
Guillermina Hernandez, Paris, FR;
Alan Francois, Soisy S/ Montmorency, FR;
Pascal Piveteau, Rueil Malmaison, FR;
Francoise Fayolle, Clamart, FR;
Frederic Monot, Nanterre, FR;
Guillermina Hernandez, Paris, FR;
Alan Francois, Soisy S/ Montmorency, FR;
Pascal Piveteau, Rueil Malmaison, FR;
Francoise Fayolle, Clamart, FR;
Frederic Monot, Nanterre, FR;
Institut Fracois du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A process for the treatment of aqueous effluents containing at least one of the following ethers is described: ethyl tert-butyl ether (ETBE) and/or methyl tert-butyl ether (MTBE) and/or tert-amyl methyl ether (TAME) in order to reduce the concentration of these ethers. A bacteriumCIP I-2194 is innoculated under aerobic conditions. In particular, a bacteriumCIP I-2052 or a bacteriumsp. CIP I-2561 or a bacteriumsp. CIP I-2562 is added in the presence of a growth substrate and, optionally, of a cobalt salt, and the ether contained in the effluents is degraded by the bacteria thus innoculated until its mineralization. The process is useable in the ether-contaminated water treatment industry.