Liquid purification or separation – Processes – Treatment by living organism
Patent
1993-12-27
1995-01-17
Upton, Christopher
Liquid purification or separation
Processes
Treatment by living organism
210747, 210170, 2105322, C02F 330
Patent
active
053823630
ABSTRACT:
An underground septic tank system is provided, along with a method of constructing the same, which includes a septic tank, drain lines in a trench with a gravel bed and a concrete block aerator column. The aerator column provides a standing supply of oxygen for the drain line and surrounding gravel bed to insure sufficent aerobic bacterial activity to keep the gravel bed unobstructed therethrough.
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