OSMART® is an algorithm developed by E.T.C Sustainable Solutions (Trento, Italy) for the control of intermittent aeration in activated sludge processes, in which the on/off regulation for aeration (for nitrification and denitrification, respectively) is based on measured concentrations of ammonium and nitrate in the bioreactor.

On/off aeration cycles have a maximum duration. During the non-aerated phase, it is possible to activate a pulse aeration mode, in which air is sparged for short periods to ensure optimal mixing of sludge in the bioreactor.

The application of OSMART® allows achieving several economical and environmental benefits in the operation of a wastewater treatment plant, in particular:

• increased process efficiency and flexibility, accommodating influent loading fluctuations
• reduced energy consumption for aeration and, under pulse aeration, for reactor mixing
• reduced sludge production
• reduced chemical usage (e.g., COD for denitrification)
• increased automation of the treatment plant and reduced maintenance requirements for operators

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In the package you will find:

• The files containing the model for OSMART®
• A short step-by-step guide on how to properly implement the files in WEST