Water treatment systems and methods
OwnerOrest Zacerkowny, John Toohil +1inventors
InventorsOrest Zacerkowny, John Toohil, Joseph E. Zuback
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Abstract
Systems and methods for treating water are provided. In certain examples, the system may include a first stage, a second stage fluidically coupled to the first stage and a third stage fluidically coupled to the second stage. In some examples, the system may provide treated water having a specific resistance of greater than or equal to 1 Megohm-cm. In certain examples, the water recovery rate using the system may be 90% or more by volume.
Claims48
A method comprising:
- providing filtered water by reducing an amount of species in feed water by at least 90% using a first stage comprising a microfiltration device;
- providing partially treated water by reducing an amount of species in the filtered water by at least 95% using a second stage fluidically coupled to the first stage and comprising a reverse osmosis device;
- and
- providing treated water having a specific resistance of greater than or equal to 1 Megohm-cm by removing a sufficient amount of remaining ionic species from the partially treated water using a third stage fluidically coupled to the second stage and comprising an electrochemical device, wherein the treated water is provided at a water recovery rate of at least 90% by volume.
A method of treating feed water comprising calcium carbonate and silicon dioxide, the method comprising:
- passing the hard water to a first stage comprising a microfiltration device configured to provide filtered water;
- passing the filtered water from the first stage to a second stage fluidically coupled to the first stage, the second stage comprising a reverse osmosis device configured to provide partially treated water;
- and
- passing the partially treated water to a third stage fluidically coupled to the second stage, the third stage comprising an electrochemical device configured to remove a sufficient amount of remaining ionic species from the partially treated water to provide treated water having a specific resistance greater than or equal to 1 Megohm-cm, wherein the treated water is provided at water recovery rate of at least 90% by volume.
A system to provide treated water from feed water, the system comprising:
- a first stage comprising a microfiltration device effective to remove at least 90% of calcium carbonate from the feed water to provide filtered water;
- a second stage fluidically coupled to the first stage and comprising a reverse osmosis device effective to remove at least 95% of species remaining in the filtered water to provide partially treated water;
- and
- a third stage fluidically coupled to the second stage and comprising an electrochemical device effective to remove a sufficient amount of remaining ionic material to provide treated water having a specific resistance of greater than or equal to 1 Megohm-cm, wherein the treated water is provided at a water recovery rate of at least 90% by volume.
A system comprising
- a first device constructed and arranged to remove at least 90% of calcium carbonate from feed water to provide concentrate;
- a second device fluidically coupled to the first device, the second device constructed and arranged to remove at least 95% of calcium carbonate from the concentrate to provide partially treated water;
- and
- a third device fluidically coupled to the second device, the third device constructed and arranged to remove a sufficient amount of remaining ionic species in the partially treated water to provide treated water having a specific resistance greater than or equal to 1 Megohm-cm, wherein the treated water is provided at a water recovery rate of at least 90% by volume.
A method of facilitating treatment of hard water comprising calcium carbonate and silicon dioxide to provide treated water having a specific resistance of greater than or equal to 1 Megohm-cm at a water recovery rate of at least 90% by volume, the method comprising providing a system comprising a first stage configured to receive the hard water and comprising a microfiltration device configured to provide filtered water, a second stage fluidically coupled to the first stage and comprising a reverse osmosis device configured to provide partially treated water, and a third stage fluidically coupled to the second stage and configured to remove a sufficient amount of remaining ionic species from the partially treated water to provide the treated water having a specific resistance greater than or equal to 1 Megohm-cm at a water recovery rate of at least 90% by volume.
Dependencies are inferred from the claim text.