Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"polyphosphate accumulating organisms"”.
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Quantifying polyphosphate energy for modelling of polyphosphate accumulating organisms behaviour in anaerobic digestors
This study investigated the behaviour of polyphosphate accumulating organisms (PAOs) in linked activated sludge-anaerobic digestion (AS-AD) systems, with particular focus on quantifying polyphosphate (PolyP) energy and its role in PAO metabolism. The study was motivated by observed discrepancies …
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Growing an Enhanced Culture of Polyphosphate Accumulating Organisms using a University of Cape Town Membrane Bioreactor (UCTMBR) System
… (P) is a resource required by all living organisms and a key ingredient in fertilizers and P-based pesticides. The global increase in fertilizer demand due to the continuing increase in population and rising demand for high quality food present a risk to the current P reserves given that P …
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Optimizing Enhanced Biological Phosphorus Removal at WRRFs: Impact of Low DO Operation and Full-Scale Strategies
… analysis suggested a community shift toward polyphosphate-accumulating organisms (PAOs). Statistical analysis revealed that low DO operation (DO concentrations below 1 mg O2/L) did not negatively impact effluent TP concentrations and were positively correlated with increased PAO abundance. …
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Anaerobic Digestion Steady State model parameter estimation for determination of waste activated sludge characteristics
… of the Waste Activated Sludge (WAS) containing Polyphosphate Accumulating Organisms (PAOs) from a full-scale WWTP as input variables in the Steady State (SS) Anaerobic Digestion (AD) model to ensure accurate prediction of AD performance. The experimental setup used in this research consisted of …
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The effects of acetate concentrations on competition between microbial populations in enhanced biological phosphorus removal from wastewater
… that the bacteria responsible for EBPR, polyphosphate accumulating organisms (PAOs), have an advantage over their competitors, the glycogen accumulating organisms (GAOs). Because research EBPR systems have been primarily sequencing batch reactors (SBRs), which include rapid feed addition …
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Nutrient (Ammonium and Phosphate) Removal Using Aerobic Granulation at Pilot scale
… Different types of denitrifiers and potential polyphosphate accumulating organisms (PAOs) were also identified. The long-term performance showed that the ammonium nitrogen (NH4-N) removal efficiencies established inverse relation with ammonium nitrogen loading rate (NLR). Phosphate (PO4-P) …
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Evaluation of Glycerol and Waste Alcohol as Supplemental Carbon Sources for Denitrification
… generalist population of ordinary heterotrophic organisms (OHO) that use substrate, glycerol in this case, less efficiently, producing low yields and slow growth rates, to a specialist population that use glycerol more efficiently, with higher yields and slightly faster growth rates, was …
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Enhanced Biological Phosphorus Removal for Liquid Dairy Manure
Enhanced biological phosphorus removal (EBPR) has been widely used in municipal wastewater treatment, but no previous studies have examined the application of EBPR to treat dairy manure. This study was conducted to evaluate the (i) performance of pilot-scale EBPR systems treating liquid dairy …