METHOD FOR IMPROVING THE ECOLOGICAL STATE OF A WATER BASIN AND ITS BOTTOM SEDIMENT - Patent 0869916

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EP 0 869 916 A1

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(43)	Date of publication:
	14.10.1998 Bulletin 1998/42

(21)	Application number: 96920862.0

(22)	Date of filing: 28.06.1996

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International Patent Classification (IPC):

B09C 1/ 10^{( . )}

E02B 3/ 02^{( . )}

(86)	International application number:
	PCT/FI1996/000381

(87)	International publication number:
	WO 1997/002215 (23.01.1997 Gazette 1997/05)

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

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Priority:

30.06.1995 FI 19950003243

(71)	Applicant: LAPPALAINEN, Kalle Matti
	SF-70780 Kuopio 78 (FI)

(72)	Inventor:
	LAPPALAINEN, Kalle Matti SF-70780 Kuopio 78 (FI)

(74)	Representative: Pitkänen, Hannu Alpo Antero
	Patent Agency Pitkänen Oy, Savilahdentie 6 L 3 70210 Kuopio 70210 Kuopio (FI)

(54)	METHOD FOR IMPROVING THE ECOLOGICAL STATE OF A WATER BASIN AND ITS BOTTOM SEDIMENT