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1. (WO1992009531) METHOD FOR REMOVING AMMONIA FROM EFFLUENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009531 International Application No.: PCT/FR1991/000932
Publication Date: 11.06.1992 International Filing Date: 25.11.1991
IPC:
C02F 1/52 (2006.01) ,C02F 1/58 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
52
by flocculation or precipitation of suspended impurities
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
58
by removing specified dissolved compounds
Applicants:
SOCIETE NATIONALE ELF AQUITAINE [FR/FR]; Tour Elf 2, place de la Coupole La Défense 6 F-92400 Courbevoie, FR (AllExceptUS)
HORNY, Patrick [FR/FR]; FR (UsOnly)
LADOUSSE, Alain [FR/FR]; FR (UsOnly)
Inventors:
HORNY, Patrick; FR
LADOUSSE, Alain; FR
Agent:
ALDRIN, Jean-Pierre; Societe Nationale Elf Aquitaine (Production) Tour Elf F-92078 Paris-La Défense Cédex 45, FR
Priority Data:
90/1474826.11.1990FR
Title (EN) METHOD FOR REMOVING AMMONIA FROM EFFLUENTS
(FR) PROCEDE D'ELIMINATION DE L'AMMONIAQUE DES EAUX RESIDUAIRES
Abstract:
(EN) A method for removing ammonia, or ammonia and phosphates from industrial agricultural or household effluents by causing precipitation as magnesium ammonium phosphate by means of a liquid reagent containing magnesium and phosphate ions and an acid.
(FR) L'invention concerne l'élimination de l'ammoniaque, ou de l'ammoniaque et des phosphates des eaux résiduaires industrielles, agricoles ou ménagères par précipitation sous forme de phosphate ammoniaco-magnésien à l'aide d'un réactif liquide renfermant des ions magnésium et phosphate et un acide.
Designated States: CA, JP, NO, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
NO19922960ES2051148EP0513306US5294348JPH05503253CA2073505
DE000069101107FR2669619DK0513306