MODELING NUTRIENT CYCLING IN AERATED STABILIZATION BASINS - APPROACHES AND UNCERTAINTIES
Abstract:The biologically-active sediment layer commonly present in aerated stabilization basins (ASBs) contributes a spatially and temporally varying load of both soluble BOD and nutrients to the overlying water. Some research on the cycling of nutrients in ASBs has been published in the literature but there remain many aspects of this process that are poorly understood. This paper summarizes the published information, drawing on studies conducted on ASBs as well as sediments in natural waters, and presents the modeling approach currently used by NCASI to simulate ASB performance. The process of model development and experiences with application of the model, some of which are described in the paper, have led to the identification of specific information needs that must be addressed before the cycling of nutrients in ASBs can be fully understood.
Document Type: Research Article
Publication date: January 1, 2001
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