Global Patent Index - EP 0989959 A1

EP 0989959 A1 2000-04-05 - DEVICE FOR THE ELECTROCHEMICAL TREATMENT OF WATER OR WASTE WATER BY ELECTROFLOCCULATION

Title (en)

DEVICE FOR THE ELECTROCHEMICAL TREATMENT OF WATER OR WASTE WATER BY ELECTROFLOCCULATION

Title (de)

VORRICHTUNG ZUR ELEKTROCHEMISCHEN BEHANDLUNG VON WASSER ODER ABWASSER DURCH ELEKTROFLOKKULATION

Title (fr)

DISPOSITIF POUR LE TRAITEMENT ELECTROCHIMIQUE DE L'EAU OU DES EAUX USEES PAR ELECTROFLOCULATION

Publication

EP 0989959 A1 (DE)

Application

EP 98929428 A

Priority

  • DE 19724005 A
  • EP 9803405 W

Abstract (en)

[origin: WO9856720A1] The invention relates to an apparatus for the electrochemical treatment of waste water by electroflocculation, comprising an electrode arrangement and an anode scraping device. The sword-shaped anode(s) (2) are flanked by cathodes (3) which have the same shape and support the support construction for the anode scraping device. The transporting of the oxide crusts scraped from the anode surface towards the lower reactor end is supported by a gas current which is introduced into the electrolysis slot through hollow sections (4) serving as distancing elements for the electrodes. The anodes can consist of several individual metal sheets having intermediate layers for lowering frictional resistance when individual sheets are advanced. The liquid tightness of the upper surface of the reactor in the area of the scraping device is ensured by a stopper of an elastic material which is not electrically conductive.

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

C02F 1/465

IPC 8 full level (invention and additional information)

C02F 1/461 (2006.01); C02F 1/463 (2006.01); C02F 1/465 (2006.01)

CPC (invention and additional information)

C02F 1/46109 (2013.01); C02F 1/463 (2013.01); C02F 1/465 (2013.01); C02F 2001/46119 (2013.01)

Citation (search report)

See references of WO 9856720A1

Designated contracting state (EPC)

CH DE FR GB LI

EPO simple patent family

WO 9856720 A1 19981217; DE 19724005 C1 19990729; EP 0989959 A1 20000405; US 6214182 B1 20010410

INPADOC legal status


2002-07-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011228

2001-07-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010612

2000-04-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991221

2000-04-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE FR GB LI