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Evaluation and behaviour of slowly biodegradable substrate on mathematical modelling of oxygen uptake rate in activated sludge systems
Abstract
The effect of the readily biodegradable (Ss) fraction in activated sludge systems has been extensively investigated, but only minor information can be found about the effect of Xs on OUR in activated sludge systems. The aim of this study was to determine the evaluation and behaviour of Xs on mathematical modelling of OUR using ASM2d and its modification. The essential study was divided into two major parts: experimental investigation and mathematical modeling. In the first part of research a novel measurement procedure for a indirect determination of the effect of Xs was developed and implemented. The results of laboratory tests were futher used to evaluate a mechanism of the hydrolysis process using an existing Activated Sludge Model No 2d (ASM2d). In comparison with the orginal ASM2d, the modified model supported by both lab/full-scale computer simulations better predicted the COD and OUR behavior of parallel samples with the settled wastewater (SWW) without pretreatment and after coagulation-flocculation (C-F). The average ARDs were 19.0% and 29.3% (original ASM2d) vs. 13.4% and 20.4% (modified ASM2d), respectively, for the SWW without pretreatment and after C-F.
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- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- IWA Balkan Young Water Professionals 2015 strony 245 - 261
- Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Drewnowski J.: Evaluation and behaviour of slowly biodegradable substrate on mathematical modelling of oxygen uptake rate in activated sludge systems// IWA Balkan Young Water Professionals 2015/ Saloniki, Grecja: Hellenic Water Association, 2015, s.245-261
- Verified by:
- Gdańsk University of Technology
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