C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/30 (2006.01) B01D 53/22 (2006.01) B01D 53/85 (2006.01) C02F 3/10 (2006.01) C02F 3/20 (2006.01) C02F 3/28 (2006.01)
Patent
CA 2300719
A first reactor for treating wastewater has an anaerobic section, a plurality of gas transfer membrane modules, and an aerobic section. A biofilm is cultivated on the surface of the gas transfer membranes, the biofilm having aerobic and anoxic zones and being in fluid communication with the anaerobic section. The aerobic section is also in fluid communication with the anaerobic section. Wastewater flows through the reactor so as to be treated in the anaerobic section, the aerobic section and by contact with the biofilm. Treated wastewater leaves the reactor from the aerobic section flowing first through a liquid-solid separation device such as a clarifier. The supernatant from the clarifier is connected to the outlet and a portion of a settled sludge at the bottom of the clarifier is recycled to the reactor. Biological reduction of COD, BOD, nitrogen and phosphorous are achieved. In a second reactor, phosphorous is also removed chemically in a precipitation branch in fluid communication with the top of the anaerobic section which is at least periodically quiescent such that the mixed liquor may at least partially settle.
Cote Pierre
Husain Hidayat
Phagoo Deonarine
Bereskin & Parr
Zenon Environmental Inc.
Zenon Technology Partnership
LandOfFree
Membrane supported biofilm process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Membrane supported biofilm process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane supported biofilm process will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1387256