Method of discharging sewage by vacuum and control apparatus for

Details Method of discharging sewage by vacuum and control apparatus for Method of discharging sewage by vacuum and control apparatus for

1987-08-24

1988-12-20

Cohan, Alan

Fluid handling

Processes

137205, 1372361, 4431, E03F 100

Patent

active

047919493

ABSTRACT:
It is essential for optimum operation of a vacuum sewage line to cause an injection of air to follow behind a preceding operation of removal of sewage by suction. The invention solves the problem of dividing large quantities of sewage that are produced into portions and of conveying them through the vacuum sewage pipe by the triggering of a secondary air valve for the supply of air necessary after each suction operation.

REFERENCES:
patent: 4108192 (1978-08-01), Michael
patent: 4155851 (1979-05-01), Michael

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