METHOD OF MONITORING TREATING AGENT RESIDUALS AND CONTROLLING TREATING AGENT DOSAGE IN WATER TREATMENT PROCESSES - Patent 1839036

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EP 1 839 036 A2

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(43)	Date of publication:
	03.10.2007 Bulletin 2007/40

(21)	Application number: 06718946.4

(22)	Date of filing: 20.01.2006

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International Patent Classification (IPC):

G01N 21/64^(2006.01)

(86)	International application number:
	PCT/US2006/001948

(87)	International publication number:
	WO 2006/078847 (27.07.2006 Gazette 2006/30)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

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Priority:

20.01.2005 US 38718
13.01.2006 US 331864

(71)	Applicant: Nalco Company
	Naperville, IL 60563-1198 (US)

(72)	Inventors:
	SETHUMADHAVAN, Gopi Nath Lisle, IL 60532 (US) JOHNSON, Brian S. Warrenville, IL 60555 (US)

(74)	Representative: Maggs, Michael Norman et al
	Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)

(54)	METHOD OF MONITORING TREATING AGENT RESIDUALS AND CONTROLLING TREATING AGENT DOSAGE IN WATER TREATMENT PROCESSES