Summary
With the aim of studying the possible utilization of brewery waste water activated sludge for animal feeding, the influence of the solids retention time (SRT) and nitrogen supplementation were investigated, especially with respect to biomass production and biomass composition. It was found that the SRT strongly influenced both parameters. At an SRT of from 4 to 6 days excellent biomass production was obtained. This biomass had the highest protein content and the daily protein production was four times higher than at a SRT of 20 days. Supplementation with urea doubled the protein production, lowered the carbohydrate and poly-β-hydroxybutyric acid content, but increased the nucleic acid content. The COD removal was better and phosphorus removal increased. In order to study these variables, a multi-channel laboratory system was designed. Because of its simplicity in operation and its versatility this system is described in detail.
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References
Braunegg G, Sonnleitner B, Lafferty RM (1978) A rapid gas-chromatographic method for the determination of poly-β-hydroxy butyric acid. Eur J Appl Microbiol 6:29–37
Herbert D, Phipps PJ, Strange RE (1971) Chemical analysis of microbial cells. In: Norris JR, Ribbons DW (eds) Methods in microbiology 5 b. Academic Press, London, pp 244–252
Houtmeyers J, Van den Eynde E, Poffe R, Verachtert H (1980) Relations between substrate feeding pattern and development of filamentous bacteria in activated sludge processes. Part I. Influence of process parameters. Eur J Appl Microbiol Biotechnol 9:63–67
Standard Methods for the examination of water and waste water (1971) 13th edn. APHA, AWWA & WPCF, New York
Strauch L (1965) Ultramikro-Methode zur Bestimmung des Stickstoffes in biologischem Material. Z Klin Chem 5:165–167
Van den Eynde E, Houtmeyers J, Verachtert H (1981) Relation between substrate feeding pattern and bulking sludge. Water Research Center Conference on activated sludge bulking. Prevention or cure? Cambridge, England
Verachtert H, Van den Eynde E, Houtmeyers J (1980) Relations between substrate feeding pattern and development of filamentous bacteria in activated sludge processes. Part II. Influence of substrates present in the influent. Eur J Appl Microbiol Biotechnol 9:137–149
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Vriens, L., Van den Eynde, E. & Verachtert, H. Parameters affecting protein production from brewery waste water in a multi-channel laboratory-scale activated sludge system. European J. Appl. Microbiol. Biotechnol. 18, 52–59 (1983). https://doi.org/10.1007/BF00508129
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DOI: https://doi.org/10.1007/BF00508129