Sewage treatment plant and method of treating sewage

Abstract

Abstract A NON-CONTINUOUS FLOW METHOD OF TREATING SEWAGE INCLUDING STEPS OF SUBJECTING RAW SEWAGE TO ANAEROBIC ACTION TO SEPARAE THE MAJORITY OF THE SLUDGE FROM THE WATER, SUBJECTING THE RESULTING EFFUENT TO A CLARIFICATION PROCESS WHILE IN A QUIESCENT STATE, SUBJECTING THE CLARIFIED FLUID TO AEROBIC ACTION, INCLUDING AERATION OF THE FLUID, CHLORINATION, AND THEN SUBJECTING THE TREATED WATER TO A FINAL TRICKLE FILTER. A SEWAGE TREATMENT PLANT INCLUDING A PRIMARY TANK IN WHICH THE MAJORITY OF THE SLUDGE IS SETTLE FROM THE SEWAGE AND IN WHICH AN ANAEROBIC BIOLOGICAL ACTION OCCURS, A SECOND TANK FRO RECEIVING EFFUENT FROM THE FIRST TANK AND IN WHICH SECOND TANK CLARIFICATION OCCURS BY SETTLING OF THE REAMINING SLUDGE; AND A THIRD TANK IN WHICH AN AEROBIC BIOLOGICAL PROCESS OCCURS. THIS AEROBIC ACTION IS ENHANCED BY AN AERATION PROCESS WHICH IS PROVIDED BY AN AIR SUPPLYING PUMP. THE SEWAGE PLANT ALSO INCLUDES MEANS FOR CHORINATING THE FLUID IN THE THIRD TANK AFTER IT HAS BEEN SUBJECTED TO THE AEROBIC ACTION. MEANS ARE ALSO PRIVIDED FOR TIMING THE ACTION OF THE AERATION PUMP, THE CHLORINATION PUMP, AND THE PUMP WHICH REMOVES THE FLUID FROM THE SECOND TANK AND DISCHARGES IT TO THE FINAL FILTER BED. THE FINAL FILTER BED IS OF A TRICKLE FILTER TYPE.

Inventors

• 👤 Joseph L Bergles
• 👤 Marvin A Nelson

Bibliographic Details