Global Patent Index - EP 1377526 A1

EP 1377526 A1 20040107 - METHOD AND INSTALLATION FOR REMINERALIZING RAW WATER

Title (en)

METHOD AND INSTALLATION FOR REMINERALIZING RAW WATER

Title (de)

VERFAHREN UND VORRICHTUNG ZUR REMINERALISIERUNG VON ROHWASSER

Title (fr)

PROCEDE ET INSTALLATION DE REMINERALISATION D'UNE EAU BRUTE

Publication

EP 1377526 A1 20040107 (FR)

Application

EP 02761936 A 20020412

Priority

  • FR 0201293 W 20020412
  • FR 0105077 A 20010412

Abstract (en)

[origin: FR2823499A1] The re-mineralization procedure for untreated water consists of dividing the initial flow (Q) into two separate flows (Q1, Q2), only one of which (Q1) is treated by the injection of carbon dioxide and a mineral base selected from lime, soda, sodium carbonate and sodium bicarbonate. The treated flow of water can comprise between 5 and 95 per cent of the initial untreated flow, with the lime injected in the form of milk of lime or lime water, using a saturator. The injection of CO2 can be made through vents in a de-gassing tower for water charged with CO2 or by means of a pure product. The procedure can also incorporate an additional clarification, oxidation and refining process before and/or after the treatment of the separated flow (Q1).

[origin: FR2823499A1] The invention relates to a method and installation for treating water for human consumption, for an industrial process, for agricultural purposes or for other purposes. The method used to remineralize raw water comprises a stage in which carbon dioxide and at least one inorganic base are injected. According to the invention, the method comprises the following stages: the flow Q of raw water is separated into a flow Q1 and a flow Q2; only flow Q1 is remineralized by injecting carbon dioxide and at least one inorganic base, said remineralization being carried out in at least one remineralization basin; remineralized flow Q1 is mixed with untreated flow Q2. .

IPC 1-7

C02F 1/68; A23L 2/54

IPC 8 full level

A23L 2/54 (2006.01); C02F 1/68 (2006.01); C02F 1/00 (2006.01)

CPC (source: EP)

A23L 2/54 (2013.01); C02F 1/68 (2013.01); C02F 2209/24 (2013.01); C02F 2301/043 (2013.01)

Citation (search report)

See references of WO 02083574A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

FR 2823499 A1 20021018; FR 2823499 B1 20040227; EP 1377526 A1 20040107; US 2004104180 A1 20040603; US 7374694 B2 20080520; WO 02083574 A1 20021024

DOCDB simple family (application)

FR 0105077 A 20010412; EP 02761936 A 20020412; FR 0201293 W 20020412; US 47299503 A 20030917