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Application of the ASPEN System for Simulation of the Detroit Waste Water Treatment Plant

by Amal Ibrahim, Detroit Water & Sewerage Dep, United States,
Khalil Atasi, Detroit Water & Sewerage Dep, United States,
Ralph Kummler, Detroit Water & Sewerage Dep, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

The objective of this study is to simulate the Detroit Wastewater Treatment Plant (DWWTP) using the Advanced System for Process Engineering (ASPEN). The primary treatment facility has a total of 12 rectangular clarifiers with a surface area of 30,500 sq. ft each, and 2 circular clarifiers with surface areas of 49,000 sq. ft each. The secondary treatment facility has one air and three pure activated sludge systems including 25 final clarifiers each of 4 million gallons volume. Development of a clarification model, the most crucial unit in wastewater treatment plants is needed because such a model is not presently available in ASPEN. Therefore, two separate models for the primary and secondary clarifiers were developed and added to ASPEN. The comprehensive model for the overall plant can predict the quality of the final effluent stream of the plant. The comparison between the results obtained with the measured data showed reasonable agreement within 7.9% and 7.6% differences for the TSS and BOD removal, respectively. Thus, the developed models along with the ASPEN system provide environmental engineers with a very strong and effective tool for process simulation and control of wastewater treatment plants.

Subject Headings: Water treatment plants | Wastewater treatment plants | Industrial wastes | Industrial facilities | Systems engineering | Clarifiers | Effluents | Detroit | Michigan | United States

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