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US 8,045,849 B2Granted
Water treatment system and process
AssigneeSiemens Industry, Inc.
InventorsGary V. Zoccolante, Bruce Rothenberg, Jonathan H. Wood, Joseph D. Gifford, Anil D. Jha
Life of this patent
Estimating the term…
Abstract
The present invention generally relates to a water treatment system and a sanitization system and method. A sanitization fluid, typically water at a pharmaceutically acceptable temperature, is intermittently provided to the water treatment system for minimal periods of time.
Claims25
A non-recirculating water treatment system comprising:
- a treatment unit for removing dissolved species from a water stream;
- a source of a sanitization fluid maintained at a temperature of about 60° C. to about 80° C.;
- and
- a controller responsive to at least one of an operational startup of the treatment unit, an operational shutdown of the treatment unit, a pre-determined time period of in-service operation of the treatment unit, a pre-determined out of service time period of the treatment unit, and microbial count;
- wherein the controller is in communication with an inlet of the treatment unit and is configured to intermittently generate a control signal that adjusts an amount of flow of the sanitization fluid to the inlet for a period of time from about 1 minute to about 5 minutes, and further configured to provide a treated water stream having less than 100 colony forming units per milliliter.
2 more elements
A water treatment system comprising:
- a treatment unit for removing dissolved species from a water stream;
- a source of a sanitization fluid maintained at a pharmaceutically acceptable sanitization temperature;
- a heating system constructed and arranged to maintain the source of sanitization fluid at a pharmaceutically acceptable sanitization temperature;
- and
- means for intermittent daily delivery of the sanitization fluid for a period of time from about 1 minute to about 5 minutes to an inlet of the treatment unit to provide a treated water stream having less than 100 colony forming units per milliliter.
2 more elements
A method of controlling a population growth of microorganisms in a water treatment unit comprising:
- providing a treatment unit for removing dissolved species from a water stream;
- providing a source of a sanitization fluid fluidly connected to the treatment unit and a heating system constructed and arranged to maintain the temperature of the source of sanitization fluid from between about 60° C. and about 80° C.;
- generating at least one signal based on an operational startup of the treatment unit, an operational shutdown of the treatment unit, a pre-determined time period of in-service operation of the treatment unit, a pre-determined out of service time period of the treatment unit, and microbial count;
- and
- intermittently providing the sanitization fluid at a temperature ranging from between about 60° C. and about 80° C. to an inlet of the treatment unit for a period of time ranging from about 1 minute to about 5 minutes in response to the at least one signal to provide a treated water stream having less than 100 colony forming units per milliliter.
2 more elements
A water treatment system comprising:
- a treatment unit for removing dissolved species from a water stream;
- a source of a sanitization fluid maintained at a temperature of about 60° C. to about 80° C.;
- and
- a controller responsive to at least one of an operational startup of the treatment unit, an operational shutdown of the treatment unit, a pre-determined time period of in-service operation of the treatment unit, a pre-determined our of service time period of the treatment unit, and microbial count;
- wherein the controller is in communication with an inlet of the treatment unit and is configured to intermittently generate a plurality of control signals daily that adjusts an amount of flow of the sanitization fluid at a temperature of between about 60° C. and about 80° C. to the inlet for a period of time from about 1 minute to about 5 minutes to provide a treated water stream having less than 100 colony forming units per milliliter.
2 more elements
Dependencies are inferred from the claim text.