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231223s2003 xx ||||| 00| ||eng c |
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|a eng
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|a Jupsin, H
|e verfasserin
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|a Dynamic mathematical model of high rate algal ponds (HRAP)
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|c 2003
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|a Text
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|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
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|a Date Completed 25.11.2003
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a This article presents a mathematical model to describe High-Rate Algal Ponds (HRAPs). The hydrodynamic behavior of the reactor is described as completely mixed tanks in series with recirculation. The hydrodynamic pattern is combined with a subset of River Water Quality Model 1 (RWQM1), including the main processes in liquid phase. Our aim is to develop models for WSPs and aerated lagoons, too, but we focused on HRAPs first for several reasons: Sediments are usually less abundant in HRAP and can be neglected, Stratification is not observed and state variables are constant in a reactor cross section, Due to the system's geometry, the reactor is quite similar to a plugflow type reactor with recirculation, with a simple advection term. The model is based on mass balances and includes the following processes: *Phytoplankton growth with NO3-, NO2- and death, *Aerobic growth of heterotrophs with NO3-, NH4+ and respiration, *Anoxic growth of heterotrophs with NO3-, NO2- and anoxic respiration, *Growth of nitrifiers (two stages) and respiration. The differences with regard to RWQM1 are that we included a limiting term associated with inorganic carbon on the growth rate of algae and nitrifiers, gas transfers are taken into account by the familiar Adeney equation, and a subroutine calculates light intensity at the water surface. This article presents our first simulations
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|a Journal Article
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|a Praet, E
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|a Vasel, J L
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 48(2003), 2 vom: 25., Seite 197-204
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|g year:2003
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|g day:25
|g pages:197-204
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