Generation of diurnal variation for influent data for dynamic simulation.

Institute of Sanitary Engineering and Water Pollution Control, University of Natural Resources and Applied Life Sciences, Vienna BOKU, Muthgasse 18, A-1190 Vienna, Austria.
Water Science & Technology (Impact Factor: 1.21). 02/2008; 57(9):1483-6. DOI: 10.2166/wst.2008.228
Source: PubMed

ABSTRACT When using dynamic simulation for fine tuning of the design of activated sludge (AS) plants diurnal variations of influent data are required. For this application usually only data from the design process and no measured data are available. In this paper a simple method to generate diurnal variations of wastewater flow and concentrations is described. The aim is to generate realistic influent data in terms of flow, concentrations and TKN/COD ratios and not to predict the influent of the AS plant in detail. The work has been prepared within the framework of HSG-Sim (Hochschulgruppe Simulation,, a group of researchers from Germany, Austria, Luxembourg, Poland, the Netherlands and Switzerland.

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