公开(公告)号：US3817858A

公开(公告)日：1974-06-18

申请号：US24112872

申请日：1972-04-05

申请人： COATE BURIAL VAULT INC

发明人： YOST K

IPC分类号： C02F1/68 ,  C02F3/12 ,  C02B3/08 ,  C02C5/10

CPC分类号： C02F3/1242 ,  C02F1/688 ,  Y02W10/15 ,  Y10S4/12 ,  Y10S210/926

摘要： LIQUID SEWAGE FROM AN INDIVIDUAL RESIDENCE IS DIRECTED GENERALLY TANGENTIALLY INTO A LARGE, FLAT AND SHALLOW AEROBIC SETTLEMENT TANK TO EXPOSE A LARGE SURFACE AREA OF THE SEWAGE PER UNIT VOLUME. AIR IS CIRCULATED OVER THE SURFACE OF THE SEWAGE IN A GENERALLY SPIRAL DIRECTION TO EFFECT CIRCULATION OR TURBULENCE OF THE SEWAGE WITHIN THE TANK AND DIFFUSION OF THE AIR INTO THE LIQUID. THE AIR FLOW WITHIN THE TANK IS PRODUCED BY CONNECTING THE AIR FLOW WITHIN TANK TO A CHIMNEY WHICH PROJECTS UPWARDLY ADJACENT THE OUTER WALL OF THE RESIDENCE AND CREATES A NATURAL DRAFT. THE LIQUID TREATED IN THE AEROBIC SETTLEMENT TANK IS DIRECTED INTO A SIMILARLY SHAPED AEROBIC DIGESTOR AND CLARIFIER TANK WHICH ALSO PROVIDES FOR CIRCULATION OF THE TREATED LIQUID AND DIFFUSION OF THE AIR IN RESPONSE TO A GENERALLY SPIRAL FLOW OF AIR ALSO CREATED BY THE CHIMNEY DRAFT. THE SECOND TANK DEFINES AN ANNULAR CLARIFIER CHAMBER WHICH RECEIVES THE TREATED LIQUID BEFORE IT IS DISCHARGED. THE DISCHARGED EFFLUENT MAY BE DIRECTED THROUGH A CHLORINATOR FORMED BY A VERTICAL HOUSING WHICH RECEIVES A SUPPLY OF CHLORINE CRYSTALS. THE CRYSTALS ARE URGED DOWNWARDLY INTO THE PATH OF THE EFFLUENT BY A COMBINED WEIGHT AND VALUE MEMBER WHICH IS EFEICTIVE TO STOP THE FLOW OF TREATED LIQUID IN THE EVENT ADDITIONAL CHLORINE CRYSTALS ARE NOT ADDED TO THE SUPPLY.