Abstract
Laboratory scale reactors were used to investigate the phosphorus behavior in microorganisms responsible for the operational conditions in performance in order to develop the process for the removal as well as the enriched phosphorus recovery from wastewater by using the immobilized biofilm under cyclic anaerobic and aerobic conditions. Operational parameters varied include the ratios of anaerobic and aerobic periods, operating and feeding patterns, and consideration of organic carbon and phosphorus loading conditions. To achive the proposed process successfully, the results obtained from the experiments are as follows : feed is required to supply continuously at the aerobic period and instantaneously at the anaerobic period. Organic carbon loading at the aerobic stages is required of a low loading. The amounts of phosphorus uptake under aerobic conditions are strongly correlated to those of its release under anaerobic conditions.
