Global Patent Index - EP 1913368 A2

EP 1913368 A2 20080423 - METHOD AND APPARATUS FOR MEASURING THE ELEMENTARY COMPOSITION OF WASTEWATERS

Title (en)

METHOD AND APPARATUS FOR MEASURING THE ELEMENTARY COMPOSITION OF WASTEWATERS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR MESSUNG DER ELEMENTZUSAMMENSETZUNG VON ABWÄSSERN

Title (fr)

PROCEDE ET APPAREIL PERMETTANT DE MESURER LA COMPOSITION ELEMENTAIRE D'EAUX USEES

Publication

EP 1913368 A2 20080423 (EN)

Application

EP 06765402 A 20060726

Priority

  • HU 2006000061 W 20060726
  • HU P0500715 A 20050726

Abstract (en)

[origin: WO2007012904A2] The object of the invention is a method and apparatus for measuring the elementary composition of wastewaters. In the method and the instrument based on the method the flowing solution of uniform flow velocity and suitable electrical conductivity is forced to assume a free-surface stationary flow shape by means of a suitable hydrophilic boundary surface. A glow discharge is ignited between a metallic anode disposed at a predetermined distance from the surface of the solution and the solution acting as a cathode, and the intensity of light emitted by the glow discharge is measured at characteristic wavelengths of metals and background emitting components, and the concentration of metals is determined utilizing previously recorded calibration diagrams. The invention can also be utilized for measuring the metal content of communal wastewaters in a monitoring regime.

IPC 8 full level

G01N 21/69 (2006.01)

CPC (source: EP)

G01N 21/67 (2013.01); G01N 21/69 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007012904 A2 20070201; WO 2007012904 A3 20070412; EP 1913368 A2 20080423; HU 0500715 D0 20051028; HU P0500715 A2 20070129

DOCDB simple family (application)

HU 2006000061 W 20060726; EP 06765402 A 20060726; HU P0500715 A 20050726