Design of a Tracer Test Experience and Dynamic Calibration of the Hydraulic Model for a Full-Scale Wastewater Treatment Plant by Use of AQUASIM

Autor: Cheikh Fall, J. L. Loaiza-Navía
Rok vydání: 2007
Předmět:
Zdroj: Water Environment Research. 79:893-900
ISSN: 1061-4303
DOI: 10.2175/106143007x176068
Popis: The setup of the hydraulic model structure of wastewater treatment plants (WWTPs) is an important step in the calibration of activated sludge models. The hydrodynamics of a full-scale municipal WWTP (Monterrey, Mexico) has been studied by means of the use of tracer tests and of a commercial simulator. A presimulation approach allowed the authors to quantify the appropriate rhodamine mass, set up a sampling plan, and evaluate the anticipated visual effect of the tracer test in the receiving river. The hydraulic behavior of the aeration tank for the first treatment line, a 7-cell plug-flow reactor, was shown to be best represented by 5 virtual mixed-tanks-in-series. The second treatment line, which included a vertical loop reactor (VLR), was best modeled as 3 tanks-in-series. The VLR, alone, was shown to be similar to a continuously stirred tank reactor, and not a circuit of tanks, as generally used to represent oxidation ditch reactors.
Databáze: OpenAIRE