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Experimental considerations on monitoring ORP, pH, conductivity and dissolved oxygen in nitrogen and phosphorus biological removal processes

TitoloExperimental considerations on monitoring ORP, pH, conductivity and dissolved oxygen in nitrogen and phosphorus biological removal processes
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2001
AutoriSpagni, A., Buday J., Ratini P., and Bortone G.
RivistaWater Science and Technology
Volume43
Paginazione197-204
ISSN02731223
Parole chiaveaccuracy, activated sludge, anaerobic threshold, Anaerobiosis, biological model, biological treatment, Biomass, Bioreactors, conductance, conduction, conference paper, denitrification, dephosphorylation, dissolved gas, Electric conductivity, Environmental monitoring, experimental study, experimentation, Hydrogen-Ion Concentration, monitoring, Nitrification, Nitrogen, Nitrogen removal, Nutrient removal process, oxidation reduction potential, Oxidation-Reduction, Oxygen, pH, pH effects, Phosphorus, Potassium, Redox reactions, sewage, solvation, waste water management, Water Purification, Water treatment
Abstract

An experimental study on monitoring Oxidation Reduction Potential (ORP), pH, Conductivity and Dissolved Oxygen (DO) in an Enhanced Biological Nutrient Removal process has been carried out. In the anaerobic phase, while ORP and conductivity were not reliable in monitoring simultaneously denitrification and P-release, pH showed the best performance. A significant relationship between P-released and pH variation was found. During the aerobic phase both ORP and pH were able to monitor successfully the nitrification, even though pH was much more reliable. pH can be also used for monitoring and control enhanced P-uptake. It has been concluded that, for a reliable and effective control of biological N and P removal processes a more sophisticated control system seems to be necessary.

Note

cited By 32

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0034747729&partnerID=40&md5=713c727d59d323f5583cd83b93e8afe9
Citation KeySpagni2001197