Bio-slurry reaction system and process for hazardous waste treatment
CA 2102121 C · Owner: Radian International Llc · Inventors: Castaldi, Frank J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for improved, slurry-phase bioremediatian treatment of organic sludge and mix-, tures of organic sludge and organics-contaminated soils by dissolv-, ing the contaminants into an aqueous phase and microbially degrad-, ing same. A high solids slurry of the sludge and soils is formed with, water and an active bio-slurry consisting of large populations of ac-, climated hydrocarbon-utilizing bacteria and small amounts of bi-, odegradation residue. The slurry is passed through a plurality of in-, series bioreactors (2-6) in each of which a low hydraulic shear is, maintained to promote the development of a large population of, microorganisms that will form flocculent suspensions. The …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 24, 1992 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.