Federal office of energy
Application of aerobic granules for wastewater treatment optimization: impact on the energy consumption and biological process improvement
BlueWatt Engineering Sàrl is exploiting and developing a state of the art physicals models library for the numerical simulation of Waste Water Treatment Plants.
Puratis Sàrl is Swiss R&D company active in domain of environmatal biotechnology. Puratis develops and applies novel wastewater treatment processes for complex organic compounds removal.
Integrating aerobic granular biomass with the existing activated sludge systems i.e. forming so-called “hybrid biology” – which aims to increase the biological system activity for nitrogen removal of non-nitrifying WWTPs . The expected reduction in energy consumption is 15%.
The higher carbon compounds removal efficiency of the hybrid biological process will contribute to the additional 5% energy saving in an existing WWTP.
The process development and process control will by supported and optimized by the integration of the development of an adapted mathematical model to be integrated in the existing modeling software package.
Validation of the effectiveness of the new biological hybrid system, combining activated sludge systems and granular biomass
Measuring over a period of 10 month the efficiency of the biological treatment and the energy consumption.
Operational data collection for process validation and control and integrating the data in the simulation software.
Ecological and economical validation of the technology upgrade