METHOD AT WATER SUPPLY AND SEWERAGE SYSTEM AND SYSTEM FOR WATER SUPPLY AND SEWERAGE

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EP 0 227 657 A1

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(43)	Date of publication:
	08.07.1987 Bulletin 1987/28

(21)	Application number: 85903718.0

(22)	Date of filing: 20.06.1985

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International Patent Classification (IPC):

C02F 1/ 00^{( . )}
C02F 3/ 12^{( . )}
E03F 1/ 00^{( . )}
C02F 1/ 02^{( . )}

C02F 3/ 04^{( . )}
E03D 5/ 016^{( . )}
E03F 3/ 02^{( . )}

(86)	International application number:
	PCT/SE1985/000259

(87)	International publication number:
	WO 1986/007617 (31.12.1986 Gazette 1986/28)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI NL

(71)	Applicant: NORDELL, Rolf T:son
	S-181 62 Lidnigö (SE)

(72)	Inventor:
	NORDELL, Rolf T:son S-181 62 Lidnigö (SE)

(54)	METHOD AT WATER SUPPLY AND SEWERAGE SYSTEM AND SYSTEM FOR WATER SUPPLY AND SEWERAGE