Device and method for controlling a microorganism content
Assigneec-square bioscience GmbH
InventorGerald Kraetschmer
Life of this patent
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Abstract
A device for carrying out a method for controlling a content of microorganisms in a liquid includes a measuring unit, a control unit, a supply unit and a computing unit. The measuring unit measures the microorganism content. The control unit determines a dosage of a biocide on the basis of the measured microorganism content using a model with at least one parameter, in order to achieve a predefined microorganism content. The supply unit supplies the biocide to the liquid in the dosage determined by the control unit. The computing unit calculates the at least one parameter from a recording of the microorganism content measured by the measuring unit over at least one past time interval and the amount of biocide supplied in this time interval.
Claims16
A device for controlling a content of microorganisms in a liquid, the device comprising:
- a measuring unit for measuring said microorganism content,
- a control unit, which is connected to the measuring unit and which is configured to determine a dosage of a biocide based on the measured microorganism content in order to achieve a predefined microorganism content,
- a supply unit, which is connected to the control unit and which is configured to supply the biocide to the liquid in the dosage determined by the control unit, and
- a computing unit connected to the measuring unit and the control unit,
- wherein the control unit is configured to determine the dosage using a model with at least one parameter of a relationship between an amount of biocide supplied in a time interval and a change in the microorganism content caused by the supplied amount of biocide in this time interval, and
- wherein the computing unit is configured to calculate the at least one parameter for use by the control unit in at least one later time interval from a recording of the microorganism content measured by the measuring unit over at least one past time interval and the amount of biocide supplied in this time interval.
A method for controlling a content of microorganisms in a liquid, the method comprising
- in a control process:
- measuring said microorganism content by means of a measuring unit,
- determining a dosage of a biocide with a view to achieving a predefined microorganism content based on the measured microorganism content and a model comprising at least one parameter of a relationship between an amount of biocide supplied in a time interval and a change in microorganism content caused by the supplied amount of biocide in that time interval, and
- supplying the biocide in the determined dosage to the liquid;
- and
- in a tracking process parallel or intermittent to the control process:
- calculating the at least one parameter from a recording of the microorganism content measured by the measuring unit over at least one past time interval and the amount of biocide supplied in that time interval for use in the control process in at least one later time interval.
Dependencies are inferred from the claim text.