Global Patent Index - EP 2699518 A1

EP 2699518 A1 20140226 - METHOD AND DEVICE FOR CLEANING WASTEWATER

Title (en)

METHOD AND DEVICE FOR CLEANING WASTEWATER

Title (de)

VERFAHREN UND VORRICHTUNG ZUR REINIGUNG VON ABWÄSSERN

Title (fr)

PROCÉDÉ ET DISPOSITIF DESTINÉS À L'ÉPURATION D'EAUX USÉES

Publication

EP 2699518 A1 20140226 (DE)

Application

EP 12716344 A 20120416

Priority

  • DE 102011018190 A 20110419
  • EP 2012056906 W 20120416

Abstract (en)

[origin: CA2833644A1] The invention relates to a method and to a device for cleaning wastewater, in particular organically polluted wastewater, by means of adding a nitrate source, the method comprising the following steps: filling the wastewater in a container until a first fill level (Niv A) of the reactor is reached, wherein the fill level (Niv A) is 80-99%, preferably 95%, mixing the waste water, measuring the pH value of the wastewater, wherein lye is added to the wastewater if the wastewater has a pH value of < 7.0 until a pH value of 7.5 is reached, adding nitrate to the wastewater, stirring the wastewater-nitrate mixture, controlling the addition of further nitrate and/or further lye by measuring at least one parameter of the wastewater-nitrate mixture, ending the stirring motion, and decanting with clarified water discharge at a second fill level (Niv B), wherein the fill level (Niv B) is 50-70%, preferably 60%.

IPC 8 full level

C02F 1/00 (2006.01); C02F 3/00 (2006.01); C02F 3/12 (2006.01); C02F 9/00 (2006.01)

CPC (source: EP US)

C02F 1/66 (2013.01 - EP US); C02F 3/2826 (2013.01 - EP US); C02F 3/286 (2013.01 - EP US); C02F 9/00 (2013.01 - EP US); C02F 1/20 (2013.01 - EP US); C02F 1/74 (2013.01 - EP US); C02F 3/006 (2013.01 - EP US); C02F 3/1215 (2013.01 - EP US); C02F 3/1284 (2013.01 - EP US); C02F 2001/007 (2013.01 - EP US); C02F 2101/30 (2013.01 - EP US); C02F 2101/34 (2013.01 - EP US); C02F 2103/40 (2013.01 - EP US); C02F 2209/001 (2013.01 - EP US); C02F 2209/003 (2013.01 - EP US); C02F 2209/04 (2013.01 - EP US); C02F 2209/06 (2013.01 - EP US); C02F 2209/15 (2013.01 - EP US); C02F 2209/42 (2013.01 - EP US); C02F 2305/06 (2013.01 - EP US); Y02W 10/10 (2015.05 - EP US); Y02W 10/37 (2015.05 - EP US)

Citation (search report)

See references of WO 2012143326A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102011018190 A1 20121025; DE 102011018190 B4 20171012; CA 2833644 A1 20121026; EP 2699518 A1 20140226; TW 201302629 A 20130116; US 2014054235 A1 20140227; WO 2012143326 A1 20121026

DOCDB simple family (application)

DE 102011018190 A 20110419; CA 2833644 A 20120416; EP 12716344 A 20120416; EP 2012056906 W 20120416; TW 101113790 A 20120418; US 201214110474 A 20120416