Continuous, automated, multi-stream sample collection and analys

Details Continuous, automated, multi-stream sample collection and analys Continuous, automated, multi-stream sample collection and analys

1992-05-14

1994-05-03

Raevis, Robert

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

7386434, G01N 114

Patent

active

053076974

ABSTRACT:
In the treatment of sewage, fresh, representative samples are continuously collected and analyzed at a number of different points in a sewage treatment reservoir. A submersible grinder pump is connected by a sample supply conduit to a continuous flow through filter, and ground sewage slurry is delivered at high velocity through the filter so that it scours the internal surfaces of the filter. The sewage slurry is continuously returned to the treatment reservoir, and filtrate continuously passes through a rotameter to a transparent sample collection reservoir. Discharge from the sample reservoir is controlled by a solenoid operated valve, and a continuous overflow waste return conduit allows return of the filtrate to the treatment reservoir if the solenoid valve is closed. A computer controls operation of the solenoid valves and one or more analyzers for analyzing filtrate qualities (such as alkalinity). The solenoid controlled valves are connected to the analyzer through a manifold.

REFERENCES:
patent: 3464272 (1969-09-01), Griffith et al.
patent: 4056982 (1977-11-01), Jones
patent: 4090392 (1978-05-01), Smith et al.
patent: 4155247 (1979-05-01), Kaczmarek et al.
patent: 4198862 (1980-04-01), Rubin
patent: 4250752 (1981-02-01), Ongley
patent: 4341124 (1982-07-01), Rodgers et al.
patent: 4432250 (1984-02-01), Albrecht et al.
patent: 4727758 (1988-03-01), Murdock

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