PROCEDURE FOR IMPRIVING THE ECOLOGICAL STATE OF A THERMALLY AND/OR CHEMICALLY STRATIFIED WATER BASIN - Patent 0048257

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EP 0 048 257 A1

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(43)	Date of publication:
	31.03.1982 Bulletin 1982/13

(21)	Application number: 81900822.0

(22)	Date of filing: 27.03.1981

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International Patent Classification (IPC):

B01F 3/ 04^{( . )}
C02F 3/ 12^{( . )}

C02F 1/ 64^{( . )}
C02F 7/ 00^{( . )}

(86)	International application number:
	PCT/FI1981/000024

(87)	International publication number:
	WO 1981/002731 (01.10.1981 Gazette 1981/23)

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

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Priority:

28.03.1980 FI 19800000990

(71)	Applicants:
	LAPPALAINEN, Kalle Matti SF-70780 Kuopio 78 (FI) ORAVAINEN, Reijo Matti SF-36240 Nattari (FI) SOLIN, Ami SF-33730 Tampere 73 (FI)

(72)	Inventors:
	LAPPALAINEN, Kalle Matti SF-70780 Kuopio 78 (FI) ORAVAINEN, Reijo Matti SF-36240 Nattari (FI) SOLIN, Ami SF-33730 Tampere 73 (FI)

(54)	PROCEDURE FOR IMPRIVING THE ECOLOGICAL STATE OF A THERMALLY AND/OR CHEMICALLY STRATIFIED WATER BASIN