Patent ID: 8287733

Claim:
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.