Method of filtrating liquid, and filtration apparatus for filtrating liquid
AssigneeRenasys AS
InventorTrond Melhus
Life of this patent
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Abstract
A method of filtrating liquid, the method comprising conducting a liquid through a filtering element, through an outlet line downstream of the filtering element and to a collection volume downstream of the outlet line; controlling a differential pressure of the liquid over the filtering element; and controlling a passing time of a filter flow of the liquid through the filtering element in conjunction with the differential pressure; wherein the control of the differential pressure and the passing time comprises controlling a collection volume liquid flow of the liquid out from the collection volume; and controlling a gas flow out from the collection volume. A filtration apparatus for filtrating liquid is also provided.
Claims17
A method of filtrating liquid, the method comprising:
- conducting a liquid through a filtering element, through an outlet line downstream of the filtering element and to a collection volume downstream of the outlet line, the collection volume being closed to atmosphere;
- and
- providing a controlled energy release from the liquid in order to kill living organisms by subjecting the liquid to controlled pressure drop over the filtering element by:
- controlling a differential pressure of the liquid over the filtering element, and
- controlling a passing time of a filter flow of the liquid through the filtering element in conjunction with the differential pressure,
- wherein the control of the differential pressure and the passing time comprises:
- controlling a collection volume liquid flow of the liquid out from the collection volume, and
- controlling a gas flow out from the collection volume.
A filtration apparatus for filtrating liquid, the filtration apparatus comprising:
- a filtering element;
- an outlet line downstream of the filtering element;
- a collection volume downstream of the outlet line, the collection volume being closed to atmosphere;
- a liquid outlet device configured to control a collection volume liquid flow of the liquid out from the collection volume;
- a gas outlet device configured to control a gas flow out from the collection volume;
- and
- a control system configured to:
- provide a controlled energy release from the liquid in order to kill living organisms by subjecting the liquid to controlled pressure drop over the filtering element by:
- controlling a differential pressure of the liquid over the filtering element, and
- controlling a passing time of a filter flow of the liquid through the filtering element in conjunction with the differential pressure,
- wherein the control of the differential pressure and the passing time comprises:
- controlling the liquid outlet device to control the collection volume liquid flow, and
- controlling the gas outlet device to control the gas flow.
Dependencies are inferred from the claim text.