BIOVAC
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
Cancelled · April 20, 1983 · 73422404 ·