Waste treatment apparatus with integral membrane apparatus
DCFirst Claim
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1. A wastewater treatment apparatus comprising:
- a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film;
at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; and
a denitrification chamber positioned upstream of said rotary aerator.
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Abstract
A wastewater treatment method and apparatus including a denitrification (anoxic) chamber for denitrifying wastewater, an aeration basin with Bio-Wheel for aerating the wastewater, and a membrane device in which sludge particles are separated out of the wastewater, leaving clean discharge water and reusable sludge. Sludge from the membrane chamber floor is sent back to the aeration basin or denitrification chamber or both. Excess sludge is wasted or held for further processing. Preferably, the method and apparatus facilitate both activated sludge and fixed film processes.
45 Citations
20 Claims
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1. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film; at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; and a denitrification chamber positioned upstream of said rotary aerator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin said aerator comprising a fixed film; and at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; wherein said at least one membrane is positioned in a cartridge and said cartridge comprises a plurality of membrane plates. - View Dependent Claims (13, 14)
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15. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film; at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; and at least one anaerobic chamber positioned upstream of said membrane.
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16. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin said aerator comprising a fixed film; at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; and
at least one anoxic chamber positioned upstream of said membrane. - View Dependent Claims (17)
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18. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film and at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator, wherein at least one clarifier is positioned upstream of said membrane.
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19. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film; and at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; wherein the membrane is a hollow fiber membrane.
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20. A wastewater treatment apparatus comprising:
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a rotary aerator positioned in an aeration basin, said aerator comprising a fixed film, and at least one membrane positioned downstream of said rotary aerator for removing solid particles from treated wastewater treated by said rotary aerator; wherein said at least one membrane is positioned in a membrane chamber, and said at least one membrane is relatively movable through said membrane chamber.
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Specification