Nitrogen removal in a real-time controlled sequencing batch membrane bioreactor.

摘要: The performance of a real-time controlled Sequencing Batch Membrane Bioreactor (SBMBR) for removing organic matter and nitrogen from synthetic wastewater has been investigated in this study under two specific ammonia loadings 0.0086 0.0045g NH 4 + -N gVSS −1 day . Laboratory results indicate that both COD DOC removal are greater than 97.5% (w/w) but the major benefit using membrane solid-liquid separation is effluent can be decanted through while aeration continued during draw stage. With aeration, sludge cake layer prevented forming thus alleviating clogging problem addition to significant nitrification activities observed adequate oxic stage, efficiency exceeding 99% achieved with SBMBR system. Furthermore, system also used occurrence valley nitrate knee control biological process. Under appropriate loading rates, applicable detected. performed based on on-line ORP pH measurements.