Underground effluent disposal-delivery system

Details Underground effluent disposal-delivery system Underground effluent disposal-delivery system

1991-08-15

1993-03-23

Dawson, Robert A.

Liquid purification or separation

Processes

Including geographic feature

210170, 2105101, 239200, 239201, C02F 100

Patent

active

051961253

ABSTRACT:
A system for subsurface treatment and disposal of wastewater is described. The system comprises the conveyance of secondarily or tertiarily treated water through closed pipes having walls which are permeable to water. The invention further comprises the cleaning of the conveyance pipe via the introduction of compressed air which expands the pipe and removes debris.

REFERENCES:
patent: 2573639 (1951-10-01), Coler
patent: 3046747 (1959-01-01), Timpe
patent: 3785494 (1974-01-01), Sama
patent: 3798104 (1974-03-01), Mallonee
patent: 3842006 (1974-10-01), Burt
patent: 4317539 (1982-03-01), Pollock
patent: 4958770 (1990-09-01), Mitchell

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