Journal
BIOTECHNOLOGY LETTERS
Volume 24, Issue 16, Pages 1313-1318Publisher
SPRINGER
DOI: 10.1023/A:1019871912731
Keywords
bioactivity; bioelectrochemistry; online sensor; wastewater
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The microbial activity of aerobic heterotrophic, anoxic heterotrophic and aerobic autotrophic microorganisms in biological wastewater treatment was determined by means of an electrochemical bioactivity sensor. The development of the sensor resulted in a system which can determine the microbial activities that are relevant for effective wastewater treatment. The signals of the sensor system are proportional to the substrate degradation and it can show inhibiting effects on the biomass. The most important advantages of the system are: it is independent of O-2 consumption, the three most important types of metabolic activities in wastewater technology can be measured with one sensor, furthermore the measurement is suitable for automation and it is on-line. The result is a potential for the optimization of processes based on microbial activity.
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