Depending on the design and the specific application, the ASP can achieve biological carbon (C) substances removal and biological nitrogen (N) substances removal. In the ASP, microorganisms are responsible for degradation and removal of contaminants within the wastewater. This is because of its high flexibility which allows the designer to adopt it to any kind of wastewater, it is the most cost effective, and it is also capable of producing high effluent quality that meets the increasingly stringent effluent standards. The activated sludge process (ASP) is the most widely used wastewater treatment technology. From the obtained results point of view, it can be concluded that mathematical models can be considered as worthy tools to complement the established wastewater treatment plant design procedures.
A significant difference in the volume of secondary treatment was obtained from design calculations, where the CAS without denitrification system was 9244 m3 (aerobic and secondary tanks), CAS with denitrification system was 11,324 m3 (anoxic, aerobic and secondary tanks) and for MBR system was 7468 m3 (anoxic, aerobic and immersed membrane tanks).
#WASTEWATER TREATMENT PLANT SIMULATION SOFTWARE VERIFICATION#
The verification of the obtained results from both hand calculations and the results of the program showed a good agreement.
The used model was validated by comparing the designed values of the plant and the modeling data. For this purpose, Tikrit WWTP was selected as a case study. In the same time, it can assist in studying the future expansion works required for increased hydraulic and organic loadings. This application helps not only in sizing the treatment units but also in understanding the plant’s capacity. 1 (ASM1) in GPS-X (v.7) simulation software. In brief, the treatment process design has been verified by using the activated sludge model No. In this paper, three alternatives: 1) complete mix activated sludge without nitrogen removal (CAS) 2) complete mix activated sludge with nitrogen removal (CAS-N) and 3) membrane bioreactor (MBR) processes were designed into two steps: first concept design to calculate the size of process units, then second implement modeling and simulation to improve the accuracy of the conceptual design. Those tools are becoming increasingly used for the improvement of wastewater treatment plants design because the conceptual design is complex and ill-defined. It does not store any personal data.Mathematical models and simulation are considered a powerful tool in engineering practice.
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