Sewage treatment apparatus and method
Abstract
Abstract A METHOD AND APPARATUS FOR USE IN AN ACTIVATED SLUDGE PROCESS OF TREATING WASTE WATER WHEREIN RAW SEWAGE OR THE LIKE IS MIXED WITH RETURN (ACTIVATED) SLUDGE AND THE SO-MIXED SEWAGE LIQUOR IS CONFINED IN A TANK AND SUBJECTED TO AERATION (WITH OR WITHOUT ADDITIONAL SUB-SURFACE AERATION) WHEREBY AIR IS CO-MINGLED WITH THE SEWAGE LIQUOR AND CIRCULATED THEREIN IN A PREDETERMINED VERTICAL FLOW PATTERN THROUGH A PLURALITY OF FLOW PASSAGEWAYS WITHIN THE TANK SO THAT AIR IS CONFINED WITHIN THE WASTE WATER FOR A SUBSTANTIAL PORTION OF THE OVERALL WASTE WATER FLOW CIRCUIT. AFTER A PERIOD OF TIME, THE TREATED SEWAGE LIQUOR IS REMOVED FROM THE TANK, THE SLUDGE REMOVED FOR RECYCLE OR ULTIMATE DISPOSAL AND THE EFFLUENT WATER CLARIFIED AND OTHERWISE TREATED.
Inventors
- 👤 George W Smith
Bibliographic Details
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