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Browsing by Author "Wentzel, M C"

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The development of a kinetic model for biological sulphate reduction with primary sewage sludge as substrate

Author: Van Wageningen, Sonél Date: 2007 Central to this process is biological sulphate reduction (BSR) using primary sewage sludge (PSS) as the electron donor and organic carbon source, with the concomitant reduction of sulphate to sulphide and production of carbonate alkalinity. ... Read more
Fullscale implementation of external nitrification biological nutrient removal in the Daspoort Water Care Works

Author: Muller, A W ; Wentzel, M C ; Saayman, G B ; Van de Merwe, S A ; Esterhuyse, C M ; Snyman, J S ; Ekama, G A Date: 2004 In the external nitrification (EN) biological nutrient removal (BNR) activated sludge (AS) system, the nitrification process is removed from the main BNRAS system to a fixed media system external to the AS system (Hu et al., 2003). The ENBNRAS ... Read more
Integrated biological, chemical and physical processes kinetic model for the anaerobic digestion of primary sewage sludge

Author: Van Rensburg, Pierre Date: 2001 Despite its wide application, the design, operation and control of anaerobic digesters treating sewage sludges still is largely based on experience, or empirical guidelines. To aid the design, operation and control of (and research into) ... Read more
Modelling organic material in activated sludge systems

Author: Ekama, G A ; Wentzel, M C Date: 2004 A simple predictive model for the activated sludge reactor inorganic suspended solids (ISS) concentration is presented. It is based on the accumulation of influent ISS in the reactor and an ordinary heterotrophic organism (OHO) ISS content ... Read more
Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences

Author: Ristow, N E ; Sotemann, S W ; Wentzel, M C ; Loewenthal, R E ; Ekama, G A Date: 2005 Sulphate measurement using a barium sulphate turbidimetric method in solutions with high concentrations of organic material is shown to be problematic. The organics give background colour, which introduces a positive error to the measured ... Read more
The effect of dosing unstabilized landfill leachate to a nutrient removal activated sludge system

Author: Sneyders, Michael James Date: 1998 Read more

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Browsing by Author "Wentzel, M C"

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