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|Title:||Kinetic model for selective cultivation of microfungi in a microscreen process for food processing wastewater treatment and biomass production|
|Author:||Van Leeuwen, J.|
Pometto III, A.
|Citation:||Acta Biotechnologica, 2003; 23(2-3):289-300|
|Publisher:||Wiley-V C H Verlag GMBH|
|Abstract:||The research was aimed at developing a technology to combine the production of useful microfungi with the treatment of wastewater from food processing. A recycle bioreactor equipped with a microscreen was developed as a wastewater treatment system on a laboratory scale to contain a Rhizopus culture and maintain its dominance under non-aseptic conditions. Competitive growth of bacteria was observed, but this was minimised by manipulation of the solids retention time and the hydraulic retention time. Removal of about 90% of the waste organic material (as BOD) from the wastewater was achieved simultaneously. Since essentially all fungi are retained behind the 100 μm aperture screen, the solids retention time could be controlled by the rate of harvesting. The hydraulic retention time was employed to control the bacterial growth as the bacteria were washed through the screen at a short HRT. A steady state model was developed to determine these two parameters. This model predicts the effluent quality. Experimental work is still needed to determine the growth characteristics of the selected fungal species under optimum conditions (pH and temperature)|
|Description:||The definitive version may be found at www.wiley.com|
|Appears in Collections:||Earth and Environmental Sciences publications|
Environment Institute publications
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