73422404
Apr 20, 1983
Jun 26, 1984
Controlled Water and Sewage Treatment Systems Comprising-Transfer Pump, Aeration Tanks with Vacuum Aeration, Sludge Settlement Tank with Vacuum Airlift Sludge Return, Hydrolic Leg for Discharge of Treated Effluent, Vacuum Pump, Water Pump, Control Unit, and Cistern for Recirculated Flushing Water
Environmental Control Apparatus