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Making the Most of Whole Plant Simulation Software: Lessons Learned from a Year of Calibration and Testing at the First Facility in Chesapeake Bay Region to Receive an ENR Permit

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With stringent effluent standards in the Chesapeake Bay watershed and elsewhere, wastewater treatment is becoming a more complex and precise process. This has created a need for an accurate whole plant process simulation software tool that can be used by both wastewater treatment designers and operators. It was reco gnized that modeling software can maximize its potential if it is customizable, easy to use, and can be easily shared between interested parties. To achieve this, the Aquifas simulation software was upgraded and tested at the Easton WWTF, MD facility, which operates as a modified Bardenpho process. The software incorporates the IWA ASM2d Model, together with several features to overcome limitations in IWA ASM2d. In addition to its traditional use as a design tool, the objective was to apply it to understand the impact of operational changes, reasons for periodic deterioration of nutrient removal performance, and identify methods to optimize the performance.
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Keywords: Aquifas; Enhanced Nutrient Removal; Operations; Phosphorous; Process modeling

Document Type: Research Article

Publication date: 2010-01-01

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