Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Ludensky0
Philip G. Sweeny0
Date of Patent
August 5, 2008
0Patent Application Number
105402930
Date Filed
June 6, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a method for the removal of biofilm, flocculent bulked sludge or bulked biologically active sludge from an aqueous system. The method involves adding one or more chlorinated hydantoins, such as dichloro- or monochlorodialkylhydantoin, to the aqueous system. Alternatively, the chlorinated hydantoin may be formed in situ by adding a chlorine source and an alkylated hydantoin separately to the aqueous system. The invention is particularly advantageous because of the outstanding photostability of the chlorinated hydantoin solutions even when exposed to sunlight.
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