METHOD AND DEVICE FOR CONTINUOUS MEASUREMENT OF BIOCHEMICAL CONSUMPTION OF OXYGEN, BIOCHEMICAL DEMAND FOR OXYGEN AND SPEED OF BIOCHEMICAL OXIDATION

摘要

FIELD: instrument making.;SUBSTANCE: invention is designed for continuous measurement of biochemical oxygen consumption (BOC), biochemical oxygen demand (BOD) and speed of biochemical oxygen consumption in water medium (k1). Essentially a new method is proposed, as well as a device making it possible to continuously measure at the same time BOC, BOD and k1 both in running water (river, waste water header, etc.), and in a water reservoir. The method for continuous measurement of specified indices is characterised by the fact that a continuous flow of water taken for analysis is organised from a water object into a pipeline, besides, the speed of water flow in the pipeline is selected so that within the required period of time T (where T - duration of biochemical consumption) water passes the distance between two adjacent transits of the pipeline, where sensors are installed for continuous measurement of concentration of dissolved oxygen in running water. The device for realisation of this method consists in a water-intake module and a pipeline with non-transparent walls, on which in transits there are sensors of continuous measurement of concentration of dissolved oxygen, making it possible to keep monitoring of simultaneously three specified indices of water quality.;EFFECT: device improvement.;2 cl