Sewage treatment apparatus
阅读：700发布：2022-12-15
专利汇可以提供Sewage treatment apparatus专利检索，专利查询，专利分析的服务。并且A technique for modifying a conventional Imhoff tank, which utilizes an anaerobic wastewater treatment process, to obtain an activated sludge system which is an aerobic process, the modifications comprising providing a plurality of air sparges in the lower portion of the digestion chamber of the Imhoff tank to aerate the wastewater contained therein, providing a pump means in the tank which has its suction end near the apex of the inverted pyramid-bottom of the tank and its discharge end disposed in the gas vent area of the tank, and relocating the feed to the tank into the gas vent areas rather than into the center settling compartment which is conventional. Also disclosed is the modified apparatus comprising the standard Imhoff tank elements and the new elements provided by the technique of the present invention.，下面是Sewage treatment apparatus专利的具体信息内容。
1. AN APPARATUS FOR TREATING AND PURIFYING WASTEWATER CONTAINING ORGANIC POLLUTATS COMPRISING:
1. A VESSEL HAVING VERTICAL END AND SIDEWALLS AND A BOTTOM PORTION IN THE SHAPE OF AN INVERTED PYRAMID,
2. AN INNER SETTLING COMPATMENT WITHIN SAID VESSEL AND SMALLER THAN SAID VESSEL DEFINED BY VERTICAL WALLS EXTENDING FROM ONE SIDE OF SAID VESSEL TO ITS OPPOSITE SAID, AND INCLINED LOWER PORTIONS WHICH DEFINE A SLOT COMMUNICATING BETWEEN SAID SETTLING COMPARTMENT AND THE LOWER PORTION OF SAID VESSEL, THE ERTIAL WALLS OF SAID SETTLING COMPARTMENT BEING SEPARATED FROM THE VERTICAL WALLS OF SAID VESSEL AND DEFINING A FIRST SPACE THEREBETWEEN,
2. an inner settling compartment within said vessel and smaller than said vessel defined by vertical walls extending from one side of said vessel to its opposite side, and inclined lower portions which define a slot communicating between said settling compartment and the lower portion of said vessel, the vertical walls of said settling compartment being separated from the vertical walls of said vessel and defining a first space therebetween;
2. The apparatus of claim 1 wherein said exit means comprises a weir over which the clarified water in the upper portion of said settling compartment can flow.
2. an inner settling compartment within said vessel and defined by a circle smaller than the larger circle forming said vessel, said inner settling compartment having inclined lower portions which define a slot communicating between said settling compartment and the bottom portion of said vessel, the vertical circular wall of said settling compartment being separated from the vertical circular wall of said vessel and defining an annular space therebetween;
3. a plurality of air sparges disposed in the lower portion of said vessel to aerate the wastewater therein;
3. The apparatus as claimed in claim 1, wherein said slot is a minimum of 6 inches in width.
3. a plurality of air sparges disposed in the lower portion of said vessel to aerate the wastewater therein;
3. A PLURALITY OF AIR SPARGES DISPOSED IN THE LWER PORTION OF SAID VESSEL TO AERATE THE WASEWATER THEREIN,
4. MEANS TO FEED SAID WASTWATER INTO SAID FIRST SPACE,
4. means to feed said wastewater into said first space;
4. An apparatus for treating and purifying wastewater containing organic pollutants comprising:
4. means to feed said wastewater into said annular space;
5. a pump means having its suction end disposed near the point of said inverted cone and its discharge end disposed in said annular space above the level of wastewater in said annular space; and
5. air-lift pump means having its suction end disposed near the apex of said inverted pyramid and its discharge end disposed in said first space above the level of wastewater in said first space;
5. AIR-LIFT PUMP MEANS HAVING ITS SUCTION END DISPOSED NEAR THE APEX OF SAID INVERTED PYRAMID AND ITS DISCHARGE END DISPOSED IN SAID FIRST SPACE ABOVE THE LEEL OF WASTEWATER IN SAID FIRST SPACE,
6. MEANS FOR REMOVING THE SLUDGE THAT ACCUMULATES IN THE APEX OF INVERTED PYRAMID, AND
6. means for removing the sludge that accumulates in the apex of inverted pyramid; and
6. exit means in said vessel within said inner settling compartment; wherein tHe wastewater fed to said annular space descends in said vessel, is aerated in the lower portion thereof and then flows upwardly through said slot and out from said vessel through said exit means, wherein a bed of sludge is established in the lower portion of said settling compartment through which the aerated wastewater must flow upwardly thereby further purifying said wastewater.
7. exit means in one end of said vessel within said inner settling compartment; wherein the wastewater fed to said first space descends in said vessel, is aerated in the lower portion thereof and then flows upwardly through said slot and out from said vessel through said exit means, wherein a bed of sludge is established in the lower portion of said settling compartment through which the aerated wastewater must flow, upwardly thereby further purifying said wastewater.
7. EXIT MEANS IN ONE END OF SAID VESSEL WITHIN SAID INNER SETTING COMPARTMENT, WHEREIN THE WASTEWATER FED TO SAID FIRST SPACE DESCENDS IN SAID VESSEL,IS AERATED IN THE LOWER PORTION THEREOF AND THEN FLOWS UPWARDLY THROUGH SAID SLOT AND OUT FROM SAID ESSEL THROUGH SAID EXIT MEANS, WHEREN A BED OF SLUDGE IS ESTABLISHED IN THE LOWER PORTION OF SAID SETTING COMPARTMENT THROUGH WHICH THE AERATE WASTEWATER MUST FLOW, UPWARDLY THEREBY FURTHE PUIFYING SAID WASTEWATER
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