MEASURING AND CONTROLLING ORGANIC MATTER IN WASTE WATER STREAM

Abstract

A method is disclosed for monitoring and controlling treatment of a waste water stream. The method comprises measuring UV absorbance of a waste water influent and/or waste water effluent, measuring turbidity of the waste water influent and/or waste water effluent, and determining the concentration of dissolved organics in the waste water influent and/or waste water effluent based on the measured UV absorbance. The method further comprises controlling the dosing of at least one coagulant to the waste water influent on the basis of the measured UV absorbance and/or the determined concentration of the dissolved organics, and optionally on the basis of the measured turbidity, and optionally controlling the dosing of at least one flocculant to the waste water influent on the basis of the measured turbidity.

Inventors

PIIRONEN, MARJATTA
HALTTUNEN, SAKARI
JOENSUU, IIRIS
MÄKI, Anne

Assignees

Kemira Oyj

Dates

Publication Date: 20260506
Application Date: 20191114