Model Setup and Evaluations Clause Samples
Model Setup and Evaluations. 4.2.1. Evaluate historic influent flows and loadings to the plant from 2011 to present along with the monitoring program data. This data will be used to set up the framework of the influent characterization for the model.
4.2.2. Evaluate historic operations data from 2011 to present along with the special monitoring program data and receive input from the operations staff to setup the framework of the existing plant simulation and calibration.
4.2.3. Develop a steady state model of the existing facility with a focus on the activated sludge treatment train using the BioWin Process Simulator.
4.2.4. Calibrate and validate the model using special monitoring and historic operations data along with input from the staff on operating strategies.
4.2.5. Using the calibrated and validated model, evaluate the following three levels of nutrient removal in order to account for potentially more stringent limits in the future:
4.2.5.1. Effluent total phosphorus limit of 1 mg/L and effluent total nitrogen limit of 10 mg/L.
4.2.5.2. Effluent total phosphorus limit of 0.5 mg/L and effluent total nitrogen limit of 8 mg/L.
4.2.5.3. Effluent total phosphorus limit of 0.1 mg/L and effluent total nitrogen limit of 6 mg/L.
4.2.6. Perform a pre-screening analysis of the options for nutrient removal and capacity expansion.
4.2.7. Meet with the OWNER to discuss the pre-screening analysis and to decide on the four alternatives for the alternatives evaluation.
4.2.8. Identify conceptual upgrades required for each of the three levels of nutrient removal along with estimated annual chemical requirements. Phosphorus removal will be evaluated based on both biological and chemical removal strategies.
4.2.9. Identify process control philosophy and modifications required for the alternatives evaluated.
4.2.10. Identify impacts to the solids storage and processing areas of the WWTP for the alternatives evaluated.
4.2.11. Identify construction sequencing requirements for each of the alternatives evaluated.