Abstract
The combined influence of high phenol concentrations and low temperatures on aerobic and anaerobic phenol degradation kinetics was investigated in microbial enrichment cultures to evaluate temperature-inhibition relationships with respect to the ambient conditions in polluted habitats. The inhibition of microbial phenol degradation by excess substrate was found to be temperature-dependent. Substrate inhibition was intensified when temperatures were lower. This results in an elevated temperature sensitivity of phenol degradation at inhibitory substrate concentrations.
The synergistic amplification of substrate inhibition at low temperatures may help to explain the limited self-purification potential of contaminated habitats such as soils, sediments and groundwater aquifers where high pollutant concentrations and low temperatures prevail.
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Eismann, F., Kuschek, P. & Stottmeister, U. Microbial phenol degradation of organic compounds in natural systems: Temperature-inhibition relationships. Environ. Sci. & Pollut. Res. 4, 203–207 (1997). https://doi.org/10.1007/BF02986346
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DOI: https://doi.org/10.1007/BF02986346
Keywords
- Aerobic phenol degradation
- anaerobic phenol degradation
- contaminated habitats
- degradation kinetics
- groundwater aquifers
- kinetics
- organic compounds, microbial phenol degradation
- phenol
- phenol degradation, aerobic
- phenol degradation, anaerobic
- phenol toxicity
- sediments
- self-puri-fication
- soils
- substrate inhibition
- temperature
- temperature compensation
- temperature sensitivity
- toxicity, phenol