Methods and techniques of continuous measurement of water quality in rivers, effluents and purification plants.

The continuous measurement of substances in water is of increasing significance in the economics of water quality. As a result of continuous measurement, sewage clarification can be automatically controlled with the aid of suitable equipment. Considering the increasing development of automatic appliances for the control of water as well as sewage cleaning, we shall in future have to study intensively the problems of data transmission, data transmission collation and data transmission processing in order to evaluate and transform such data into decisive aid. Only thus can the greatest benefit be obtained for the economics of water quality with these latest developments in measuring techniques, the latter being described on various reliably work-