Verfahren zur Steuerung des Wachstums von Kulturen von Mikroorganismen,insbesondere zur biologischen Behandlung bzw. Aufbereitung von Abwaessern

摘要

1,263,753. Treating sewage. OMNIUM D'ASSAINISSEMENT. 17 Feb., 1969 [16 Feb., 1968], No. 8589/69. Heading C1C. The treatment of sewage is controlled in relation to the instantaneous variation in the metabolic rate of its micro-organisms. A number of ways of controlling the densities of the microorganisms are described. A method of measuring the instantaneous variation is described in Specification 1,263,754 (see Division B1).