Sequenced aeration regulation of activated sludge

A technical innovation for more energy-efficient waste water treatment, at Tournus, France

Energy represents the largest consumption for a wastewater treatment plant after the payroll; cost optimization on that point is therefore a major concern.

The most energy-hungry aspect of a wastewater treatment plant is aeration (the delivery of air in the biological tank), representing 60% of energy requirements. Extensive savings can be made through the dynamic regulation of aeration adjusted as closely as possible to the air requirements.

Greenbass provides sequenced, aeration regulation of active sludge, and dynamically adjusts the air flow supplied for biological processing according to nitrate and ammonium concentration measurements. This procedure is an “Exact Consumption” approach.


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Sequenced aeration regulation of activated sludge


More information on the future waste water treatment plant of Tournus, France