Patent ID: 9359235
Filing Date: 2016-06-07
CPC Classification: C02F

Claim Text:
1. A method of reducing a ratio of Glycogen-Accumulating Organisms relative to a total amount of Glycogen-Accumulating Organisms and Polyphosphate-Accumulating Organisms in a substance comprising waste water and/or activated sludge, the method comprising the steps of: providing the substance in an anaerobic environment; determining the substance temperature; determining a predetermined level of the ratio of Glycogen-Accumulating Organisms relative to a total amount of Glycogen-Accumulating Organisms and Polyphosphate-Accumulating Organisms in the substance; providing a controller adapted to control the reduction of Glycogen-Accumulating Organisms relative to the total amount of Glycogen-Accumulating Organisms and Polyphosphate-Accumulating Organisms; determining by use of the controller a first predetermined period of time as a function of the substance temperature such that the first predetermined period of time corresponds to the ratio being below the predetermined level; and controlling the reduction by maintaining the substance in the anaerobic environment at the substance temperature for the first predetermined period of time, until the ratio of Glycogen-Accumulating Organisms relative to a total amount of Glycogen-Accumulating Organisms and Polyphosphate-Accumulating Organisms in the substance, is below the predetermined level.