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COMPARISON STUDY BETWEEN SEQUENCING BATCH REACTOR AND CONVENTIONAL ACTIVATED SLUDGE BY USING SIMULATION MATHEMATICAL MODEL

The sequencing batch reactor (SBR) is a specific fill and draw version of the conventional activated sludge (AS) process. In contrast to continuous flow systems, the sequencing of batch processes in the SBR is time rather space oriented; metabolic reaction and solid/liquid separation take place at different times in the same reactor. This study aims to investigate the performance and treatment capability of both Activated Sludge (AS) and Sequencing Batch Reactor (SBR) systems under different cases of operation. The GPS-X (version 5.0) simulation program was used in this study to simulate both AS and SBR plants. The GPS-X is a modular, multi-purpose modeling environmental for the simulation of municipal and industrial wastewater treatment plants. The results of this study showed that, the SBR system has a higher ability to remove the total nitrogen TKN concentration than the AS system under all cases of operation. The average of TKN removal for the SBR and AS systems is equal to 85.0 % and 80.0 % respectively. Also, the SBR system has a higher ability to remove the total ammonia NH3 + concentration than the AS system under all cases of operation. The average NH3 + removal for the SBR and AS system is equal to 98.0 % and 90.0 % respectively.