A METHOD FOR IMPROVING FLUX IN A MEMBRANE BIOREACTOR

摘要

A method for improving flux in a membrane bioreactor system comprising at least one anoxic reactor followed by at least one aeration tank. The aeration tank contains a submerged membrane. One or more cationic polymers are added to the anoxic reactor to prevent inorganic scaling or fouling. The membrane bioreactor system has mixed liquor suspended solids of 3,000 to 30,000 mg/L. The cationic polymer has a molecular weight greater than 50,000 Da and a mole charge of greater than 10%.