Abstract
The effective and reliable treatment of industrial and other wastestreams by biological means necessarily requires a system which demonstrates wide-ranging tolerance of fluctuations in operational conditions. Temperature, influent COD and pH increases and decreases will all, to varying degrees, affect the activity and viability of anaerobic bacterial populations within the reactor systems. The CH4- producing bacteria for example, are extremely intolerant of even minor fluctuations in environmental conditions. Immediate cessation of gas formation results from the application of a sharp temperature decrease of around 20 °C to the microbial system and this technique is in fact used in other anaerobic digester processes to aid biomass retention in settler units (see Chaps. 6 and 7). Fixed-film processes are in general considered more resistant than alternative systems to hydraulic and other shocks because of their capacity for biomass retention within a film with certain protective characteristics.
Keywords
- Anaerobic Digester
- High Biomass Concentration
- High Organic Loading Rate
- Cell Residence Time
- Sharp Temperature Decrease
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© 1986 Springer-Verlag Berlin Heidelberg
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Stronach, S.M., Rudd, T., Lester, J.N. (1986). Single-Stage Fixed-Film Expanded Processes. In: Anaerobic Digestion Processes in Industrial Wastewater Treatment. Biotechnology Monographs, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71215-9_8
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DOI: https://doi.org/10.1007/978-3-642-71215-9_8
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