Mehrkomponenten-Schadstoffmessgeraet fuer Wasser, Feldtest und Redesign Schlussbericht

A prototype of a multiparameter on-line analyzer for water pollution was constructed and tested in a sewage treatment plant and in a testing office on the river Elbe. A computer within the analyzer performs the instrument control, the recalibration, the processing of measuring data, connected with the analyzer for individual programming the analyzer and for a more comfortable data processing. Several different components are analyzed sequentially in one analyzer channel. The detection is made by a photometer (for instance for PO_4, NO_2) ore by ISE (for instance for NH_4, NO_3). During the long term field trial the multiparameter analyzer works reliably and with very litte maintenance requirements. The analyzer produces only minimal waste. Parameters determined by analyzer have differences of #+-#2...5% to the laboratory analyzes. The measurement of NH_4 by ISE was disturbed by the high concentration of potassium in the river Elbe. (orig.)Available from TIB Hannover: F94B2166+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman