Abstract: An oil-contaminated water stream is monitored by continuously exciting and measuring fluorescence in the stream at a monitoring point and producing a continuous monitoring indication accordingly, recurrently withdrawing from the stream samples of the contaminated water, determining the oil content of each sample by an infra-red absorption procedure, comparing each oil determination with the monitoring indication pertaining to the appropriate part of the stream and correcting or recalibrating the monitoring indication accordingly.
Type:
Grant
Filed:
May 10, 1976
Date of Patent:
November 8, 1977
Assignee:
Bailey Meter & Controls Limited
Inventors:
Raymond Michael deVial, Philip Maurice Taylor