FI924859A - Method and apparatus for purifying water of nitrates and / or nitrites - Google Patents

Method and apparatus for purifying water of nitrates and / or nitrites Download PDF

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Publication number
FI924859A
FI924859A FI924859A FI924859A FI924859A FI 924859 A FI924859 A FI 924859A FI 924859 A FI924859 A FI 924859A FI 924859 A FI924859 A FI 924859A FI 924859 A FI924859 A FI 924859A
Authority
FI
Finland
Prior art keywords
nitrites
nitrates
purifying water
water
nitrite
Prior art date
Application number
FI924859A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI96680B (en
FI96680C (en
FI924859A0 (en
Inventor
Eero Aitta
Esko Maekiniemi
Ilkka Turunen
Elias Varila
Original Assignee
Kemira Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kemira Oy filed Critical Kemira Oy
Priority to FI924859A priority Critical patent/FI96680C/en
Publication of FI924859A0 publication Critical patent/FI924859A0/en
Publication of FI924859A publication Critical patent/FI924859A/en
Publication of FI96680B publication Critical patent/FI96680B/en
Application granted granted Critical
Publication of FI96680C publication Critical patent/FI96680C/en

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  • Catalysts (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The invention relates to a process for eliminating or greatly decreasing, in which nitrate and/or nitrite which is present in water is reduced to nitrogen, with the aid of hydrogen, in a catalyst which consists of gas passages.
FI924859A 1992-10-27 1992-10-27 Method and apparatus for purifying water of nitrates and / or nitrites FI96680C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI924859A FI96680C (en) 1992-10-27 1992-10-27 Method and apparatus for purifying water of nitrates and / or nitrites

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI924859A FI96680C (en) 1992-10-27 1992-10-27 Method and apparatus for purifying water of nitrates and / or nitrites
FI924859 1992-10-27

Publications (4)

Publication Number Publication Date
FI924859A0 FI924859A0 (en) 1992-10-27
FI924859A true FI924859A (en) 1994-04-28
FI96680B FI96680B (en) 1996-04-30
FI96680C FI96680C (en) 1996-08-12

Family

ID=8536112

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924859A FI96680C (en) 1992-10-27 1992-10-27 Method and apparatus for purifying water of nitrates and / or nitrites

Country Status (1)

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FI (1) FI96680C (en)

Also Published As

Publication number Publication date
FI96680B (en) 1996-04-30
FI96680C (en) 1996-08-12
FI924859A0 (en) 1992-10-27

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: KEMIRA OY

BB Publication of examined application
MA Patent expired