Apport des mesures respirométriques à la gestion d'une station d'épuration à boues activées

New regulations for wastewater treatment that will insure greater reliability of the wastewater treatment plants are being established, that is to say in the case of an activated sludge plant, a better control of the biological process. The use of biological sensors would appear to increase the reliability of the plants by allowing the assessment of some characteristic variables of the process and by detecting as quickly as possible the influx of a toxin that is able to inhibit the biomass. We created a biosensor that measures oxygen uptake rates. According to the first results obtained, the data could lead to a good control strategy of the activated sludge process.Key words: wastewater treatment, activated sludge, respirometry, control.