Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1987-09-25
1989-03-07
Chapman, John
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
G01N 2159
Patent
active
048095435
ABSTRACT:
Oil and other contaminants entrained in a water flowstream may be measured to determine the concentration thereof by passing a sample of the flowstream through a vessel defining a chamber in which a light beam is projected to a photo sensitive element. Changes in light intensity caused by changes in concentration of oil or other contaminants are compared with the light intensity measured with a clarified or oil-free sample of liquid. A measuring system utilizes a centrifugal pump having a restricted fluid outlet to provide for thoroughly dispersal of the oil in the liquid flowstream. An alternate source of liquid may include a source of clear water or a source of clarified water which has been held in a holding tank to allow oil to separate from the water sample. The system is adapted for measuring the concentration and absorportion coefficient of oil entrained in a water flowstream such as refinery waste water streams, produced water streams from oil field flooding operations and the like.
REFERENCES:
patent: 4102177 (1978-07-01), Okado et al.
Atlantic Richfield Company
Chapman John
Martin Michael E.
Roskos Joseph W.
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