Einsatz einer konstruierten Mischkultur zur Verwertung von Mischsubstraten mit inhibierend wirkenden Substanzen |
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| Authors: | H Skrowny R Ptz K-D Wendlandt |
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| Institution: | H. Skrowny,R. Pätz,K.-D. Wendlandt |
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| Abstract: | By way of introduction the general fundamentals and kinetic setups of the competitive and non-competitive as well as substrate inhibition of cultures of microorganisms are stated. Investigated on a laboratory scale is the degradation of liquid pig slurry in a 600-1 stirring fermenter with discontinuous addition (pO2≧=30 = saturation) of methanol as external substrate by a yeast mixed culture of Metschnikowia and Pichia membranifaceans to utilize the steam-volatile fatty acids (12 g/l) and of Acetobacter methanolicus to utilize methanol. A stable fermentation with stable residual concentrations of 235 mg/l fatty acids, 142 mg/l mH4-N an 100 … 300 mg/l methanol for aperiod of 2400 h can be achieved. |
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