Membrane water treatment system and method thereof
AssigneeMemsift Innovations Pte. Ltd.
InventorJames Selvaraj Antony Prince
Life of this patent
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Abstract
This document describes systems and methods for treating and recovering water from feed solutions using a membrane module that has a plurality of hollow fiber membranes encapsulated in a collection chamber and an expansion chamber that is connected to the outlet of the membrane module.
Claims21
A system for treating a feed solution comprising:
- a membrane module comprising:
- at least one hollow fiber membrane extending between an inlet and an outlet of the membrane module, the hollow fiber membrane having an inner bore for receiving and passing through a pressurized and heated feed solution, and
- a collection chamber configured to collect water vapour from the bore of the hollow fiber membrane, wherein a pressure difference exists between the collection chamber and the inner bore of the hollow fiber membrane;
- an expansion chamber being provided at the outlet of the membrane module for causing the feed solution from the outlet of the membrane module to expand as the feed solution exits the outlet of the membrane module, wherein a pressure difference exists between the expansion chamber and the inner bore of the hollow fiber membrane;
- and
- a condenser configured to receive and condense water vapour from the collection chamber and the expansion chamber.
A module for use in a system to treat a feed solution, the module comprising:
- a membrane module comprising:
- at least one hollow fiber membrane extending between an inlet and an outlet of the membrane module, the hollow fiber membrane having an inner bore for receiving and passing through a pressurized and heated feed solution, and
- a collection chamber configured to collect water vapour from the bore of the hollow fiber membrane, wherein a pressure difference exists between the collection chamber and the inner bore of the hollow fiber membrane;
- an expansion chamber being provided at the outlet of the membrane module for causing the feed solution from the outlet of the membrane module to expand as the feed solution exits the outlet of the membrane module, wherein a pressure difference exists between the expansion chamber and the inner bore of the hollow fiber membrane;
- and
- wherein the collection chamber and the expansion chamber are configured to transmit water vapour to a condenser.
A method for treating a feed solution using a membrane module having at least one hollow fiber membrane extending between an inlet and an outlet of the membrane module and having a collection chamber, the method comprising:
- receiving, at the inlet of the membrane module, a pressurized and heated feed solution;
- passing the pressurized and heated feed solution through an inner bore of the at least one hollow fiber membrane;
- collecting at the collection chamber, water vapour from the inner bore of the at least one hollow fiber membrane, whereby a pressure difference exists between the collection chamber and the inner bore of the at least one hollow fiber membrane;
- expanding, at an expansion chamber provided at the outlet of the membrane module, feed solution from the outlet of the membrane module as the feed solution exits the outlet of the membrane module, whereby a pressure difference exists between the expansion chamber and the inner bore of the at least one hollow fiber;
- and
- receiving and condensing water vapour from the collection chamber and expansion chamber using a condenser.
Dependencies are inferred from the claim text.