Membrane bioreactor
First Claim
1. A membrane bioreactor for treatment of wastewater, comprising:
- first and second anoxic basins for anoxic treatment of such wastewater;
first and second aerobic basins for aerobic treatment of such wastewater, the first and second aerobic basins arranged in series with the first and second anoxic basins, respectively;
a first flow path connecting the first anoxic basin and the first aerobic basin, and a second flow path connecting the second anoxic basin and the second aerobic basin, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin;
a membrane chamber comprising a plurality of membrane tanks, the membrane chamber being arranged in series with the aerobic basins, and the membrane tanks being arranged in parallel with each other; and
third and fourth flow paths connecting the membrane chamber to the first and second aerobic basins, respectively,wherein the membrane chamber comprises a floor that is elevated above and extends over a floor of at least one of the aerobic basins.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to wastewater treatment facilities, and more particularly to an improved membrane bioreactor for treatment of wastewater. In one embodiment, a membrane bioreactor for treatment of wastewater includes first and second anoxic basins for anoxic treatment of such wastewater, and first and second aerobic basins for aerobic treatment of such wastewater. The bioreactor also includes a first flow path connecting the first anoxic basin and the first aerobic basin, and a second flow path connecting the second anoxic basin and the second aerobic basin, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin. The bioreactor also includes a membrane chamber with a plurality of membrane tanks, the membrane chamber being arranged in series with the aerobic basins, and the membrane tanks being arranged in parallel with each other, and third and fourth flow paths connecting the membrane chamber to the first and second aerobic basins. The membrane chamber may extend into the aerobic basin.
21 Citations
37 Claims
-
1. A membrane bioreactor for treatment of wastewater, comprising:
-
first and second anoxic basins for anoxic treatment of such wastewater; first and second aerobic basins for aerobic treatment of such wastewater, the first and second aerobic basins arranged in series with the first and second anoxic basins, respectively; a first flow path connecting the first anoxic basin and the first aerobic basin, and a second flow path connecting the second anoxic basin and the second aerobic basin, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin; a membrane chamber comprising a plurality of membrane tanks, the membrane chamber being arranged in series with the aerobic basins, and the membrane tanks being arranged in parallel with each other; and third and fourth flow paths connecting the membrane chamber to the first and second aerobic basins, respectively, wherein the membrane chamber comprises a floor that is elevated above and extends over a floor of at least one of the aerobic basins. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A membrane bioreactor for treatment of wastewater, comprising:
-
first and second anoxic basins for anoxic treatment of such wastewater; first and second aerobic basins for aerobic treatment of such wastewater, the first and second aerobic basins being connected by first and second fluid flow paths to the first and second anoxic basins, respectively, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin, wherein each aerobic basin comprises a first end proximate the respective anoxic basin and a second end opposite the first end; a membrane chamber extending into the first and second aerobic basins, wherein the membrane chamber comprises a common inlet channel, a common outlet channel, and a plurality of membrane tanks between the common inlet channel and the common outlet channel, and wherein the membrane chamber comprises a floor elevated above a floor of the aerobic basins; a membrane module in each of the plurality of membrane tanks; a first conduit extending from the common outlet channel across the first aerobic basin to the first end of the first aerobic basin; and a second conduit extending from the common outlet channel across the second aerobic basin to the first end of the second aerobic basin. - View Dependent Claims (22, 23, 24, 25, 26)
-
-
27. A membrane bioreactor for treatment of wastewater, comprising:
-
first and second anoxic basins for anoxic treatment of such wastewater; first and second aerobic basins for aerobic treatment of such wastewater, the first and second aerobic basins being connected by first and second fluid flow paths to the first and second anoxic basins, respectively, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin; a membrane chamber extending into the first and second aerobic basins, wherein the membrane chamber comprises a common inlet channel, a common outlet channel, a plurality of membrane tanks between the common inlet channel and the common outlet channel, and a plurality of feed pipes extending between the common inlet channel and the membrane tanks, and wherein the membrane chamber comprises a floor elevated above a floor of the aerobic basins; a membrane module in each of the plurality of membrane tanks; a first conduit extending from the common outlet channel to the first aerobic basin; and a second conduit extending from the common outlet channel to the second aerobic basin wherein each feed pipe extends below the floor of the membrane chamber and has an outlet in the corresponding membrane tank.
-
-
28. A membrane bioreactor for treatment of wastewater, comprising:
-
first and second anoxic basins for anoxic treatment of such wastewater; first and second aerobic basins for aerobic treatment of such wastewater, the first and second aerobic basins being connected by first and second fluid flow paths to the first and second anoxic basins, respectively, for flow of the wastewater from the respective anoxic basin into the respective aerobic basin; a membrane chamber extending into the first and second aerobic basins, wherein the membrane chamber comprises a common inlet channel, a common outlet channel, a plurality of membrane tanks between the common inlet channel and the common outlet channel, and a plurality of feed pipes extending between the common inlet channel and the membrane tanks, and wherein the membrane chamber comprises a floor elevated above a floor of the aerobic basins; a membrane module in each of the plurality of membrane tanks; a first conduit extending from the common outlet channel to the first aerobic basin; and a second conduit extending from the common outlet channel to the second aerobic basin wherein the membrane chamber further comprises a plurality of pump chambers, each pump chamber extending into the common inlet channel and having a pump operably connected to one of the membrane tanks for pumping clean water from the membrane tank. - View Dependent Claims (29)
-
-
30. A membrane bioreactor for treatment of water, comprising:
-
an anoxic basin for anoxic treatment of water; an aerobic basin for aerobic treatment of the water, the aerobic basin being fluidically connected in series with the anoxic basin, wherein the aerobic basin comprises a first end proximate the anoxic basin and a second end opposite the first end; a common inlet channel fluidically connected in series with the aerobic basin; and a plurality of membrane tanks fluidically connected in parallel with each other and in series with the common inlet channel, wherein the common inlet channel is positioned above the second end of the aerobic basin, and further comprising a vertical feed pipe for lifting the water from the second end of the aerobic basin through the vertical feed pipe into the common inlet channel. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
-
Specification