Global Patent Index - EP 1056687 A1

EP 1056687 A1 2000-12-06 - METHOD FOR PURIFYING WASTE WATER BY COMBINING HYDROGEN-PEROXIDE SUPPORTED OXIDATION WITH A MEMBRANE SEPARATION METHOD

Title (en)

METHOD FOR PURIFYING WASTE WATER BY COMBINING HYDROGEN-PEROXIDE SUPPORTED OXIDATION WITH A MEMBRANE SEPARATION METHOD

Title (de)

VERFAHREN ZUR REINIGUNG VON ABWASSER DURCH KOMBINATION EINER VON WASSERSTOFFPEROXID UNTERSTÜTZTEN OXIDATION MIT EINEM MEMBRANTRENNVERFAHREN

Title (fr)

PROCEDE D'EPURATION DES EAUX USEES PAR COMBINAISON D'UNE OXYDATION SOUTENUE PAR DU PEROXYDE D'HYDROGENE AVEC UN PROCESSUS DE SEPARATION SUR MEMBRANE

Publication

EP 1056687 A1 (DE)

Application

EP 99906196 A

Priority

  • DE 19807155 A
  • EP 9900440 W

Abstract (en)

[origin: DE19807155A1] The invention relates to a method for the oxidative treatment of water containing organic compounds, according to which the water is mixed (1) with a reagent containing hydrogen peroxide and iron or titanium ions in solution. Said method is characterized in that the mixture is subjected to a membrane separation stage (4), in which a permeate constituting the treated waste water (6) is extracted from the mixture.

IPC 1-7 (main, further and additional classification)

C02F 1/72; C02F 1/44; C02F 9/00

IPC 8 full level (invention and additional information)

B01D 61/02 (2006.01); B01D 61/04 (2006.01); C02F 1/44 (2006.01); C02F 1/72 (2006.01); C02F 9/04 (2006.01)

CPC (invention and additional information)

C02F 1/725 (2013.01); B01D 61/027 (2013.01); B01D 61/04 (2013.01); C02F 1/441 (2013.01); C02F 1/722 (2013.01); B01D 2311/04 (2013.01)

Combination set (CPC)

  1. B01D 2311/04 + B01D 2311/103 + B01D 2311/12 + B01D 2311/14
  2. B01D 2311/04 + B01D 2311/103 + B01D 2311/12 + B01D 2311/14 + B01D 2311/25

Citation (search report)

See references of WO 9942407A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL PT SE

EPO simple patent family

DE 19807155 A1 19990909; DE 19807155 C2 20010503; AU 2621399 A 19990906; CA 2321503 A1 19990826; EP 1056687 A1 20001206; JP 2002503553 A 20020205; WO 9942407 A1 19990826

INPADOC legal status


2004-07-28 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040107

2002-04-03 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020213

2001-04-04 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SIEMENS AXIVA GMBH & CO. KG

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000920

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE