Radiant energy – Invisible radiant energy responsive electric signalling – Fluent material level signalling
Patent
1989-10-30
1991-06-25
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Fluent material level signalling
250343, 250573, 356442, G01N 2101
Patent
active
050269933
ABSTRACT:
The invention relates to an automatic apparatus, computer controlled, for monitoring the settlement of solids in a liquid, specifically sludge in effluent from a sewage treatment plant. The apparatus enables the determination of the parameter known as the Stirred Specific Volume Index (SSVI) of the sludge. The apparatus includes a standard cylindrical vessel for receiving the sludge, and opposed banks of the LEDs and sensors which monitor the settlement height of the sludge as it settles in the liquid. Stirring is effected by an eccentric stirrer controlled by a Hall Effect device and the output from the sensors is fed to an electronic circuit fed by a computer for providing a determination of SSVI and hence control of a sewage works.
REFERENCES:
patent: 3319514 (1967-05-01), McAllister
patent: 3441737 (1969-04-01), Topol
patent: 3551670 (1970-12-01), Topol
patent: 3586862 (1971-06-01), Topol
patent: 4045671 (1972-08-01), Dille et al.
patent: 4194391 (1980-03-01), Rosenberger
patent: 4673811 (1987-06-01), Rose
patent: 4719359 (1988-01-01), Rose
patent: 4762420 (1988-08-01), Bowley
Dunn Drew A.
Fields Carolyn E.
Thames Water Utilities Limited
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