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 7 of 7 for “"Sewage--Purification--Activated sludge process"”.
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Temporal biomass density and filamentous bacteria effects on secondary settling
The activated sludge wastewater treatment process is the most common technology used today and solids separation is a critical and often problematic component of this technology. This leads to requirements for larger clarifiers, increased pumping costs of the diluted settled solids stream, and …
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The effects of acetate concentrations on competition between microbial populations in enhanced biological phosphorus removal from wastewater
… removal (EBPR) is a popular modification of the activated sludge process, and has been studied and applied for decades. It was hypothesized that the bacteria responsible for EBPR, polyphosphate accumulating organisms (PAOs), have an advantage over their competitors, the glycogen accumulating …
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Molecular characterization of filamentous bacteria isolated from full-scale activated sludge processes
Submitted in fulfilment of the requirements for the Degree of Master of Technology: Biotechnology, Durban University of Technology, Durban, South Africa, 2007.
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Evaluation of seasonal impacts on nitrifiers and nitrification performance of a full-scale activated sludge system
Submitted in complete fulfillment for the degree of Doctor of Philosophy (Biotechnology), Durban University of Technology, Durban, South Africa, 2016.
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Toward Simple Generic Control in Anaerobic Digestion
… the non-linear and time varying nature of the process generally requires a bespoke, engineered system dependant on the characteristics of the system. The 'cost of knowing' in employing control systems, is generally high. The ideal scenario for operators would be the availability of a generic …