Installation for making water potable with submerged filtering membranes
First Claim
1. A water-treatment installation for filtering and purifying water, notably with a view to making water potable, comprising:
- a reactor demarcating at least one treatment chamber, comprising means for conveying water to be treated into said chamber, means for removing from said water floated pollutants, and means for removing decanted pollutants, said means connected to said reactor;
a plurality of filtration membranes being disposed within said chamber and submerged in the water to be treated;
means for demarcating a filtration zone around each of said membranes;
carrying and circulating means for guiding a current of the water to be treated in said filtration zone along a preferred direction, said carrying and circulating means including ozone-injection means for injecting ozone into said filtration zone;
means for recovering permeate at an outlet of said filtration membranes; and
wherein said preferred direction is a flow of the current of water tangential to said membranes.
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Accused Products
Abstract
A water-treatment installation, notably with a view to making water potable, includes a reactor demarcating at least one treatment chamber, the reactor comprising a conveying assembly to convey the water to be treated into the chamber; a removing assembly for removing the floated pollutants and a removing assembly for removing the decanted pollutants; a plurality of filtration membranes laid out within the chamber and submerged in the water to be treated; a demarcating assembly for demarcating a filtration zone around each of the membranes; carrying and circulating member guiding a current of water to be treated in the filtration zone along a preferred direction, the carrying and circulating member including ozone-injection assembly; and a recovering assembly recovering the permeate at an outlet of the filtration membranes.
282 Citations
34 Claims
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1. A water-treatment installation for filtering and purifying water, notably with a view to making water potable, comprising:
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a reactor demarcating at least one treatment chamber, comprising means for conveying water to be treated into said chamber, means for removing from said water floated pollutants, and means for removing decanted pollutants, said means connected to said reactor; a plurality of filtration membranes being disposed within said chamber and submerged in the water to be treated; means for demarcating a filtration zone around each of said membranes; carrying and circulating means for guiding a current of the water to be treated in said filtration zone along a preferred direction, said carrying and circulating means including ozone-injection means for injecting ozone into said filtration zone; means for recovering permeate at an outlet of said filtration membranes; and wherein said preferred direction is a flow of the current of water tangential to said membranes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A filtration set for treatment of water, notably with a view to making potable, wherein said set comprises:
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a treatment chamber comprising means for conveying the water to be treated into said treatment chamber, means for removing floated pollutants and means for removing decanted pollutants; a filtration membrane surrounded by a sheath demarcating a filtration zone, said membrane being disposed within said treatment chamber; a wall to which said membrane is fixed, defining a bottom in said treatment chamber and demarcating a zone for recovering permeate; and ozone-injection means for creating a current of water within said sheath.
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28. A method for treating water, notably with a view to making the water potable, said method comprising the steps of:
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filtering the water through a plurality of membranes submerged in the water to be treated in a reactor; preparing a filtration zone around each of the membranes; carrying along a current of water in the filtration zone in a preferred direction by the use of carrying and circulating means that include ozone-injection means; and recovering permeate at an outlet from said membranes. - View Dependent Claims (29, 30, 31, 32)
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33. A water-treatment installation, notably with a view to making water potable, comprising:
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a reactor demarcating a chamber into a permeate-recovery chamber and a treatment chamber, the reactor comprising means for conveying water to be treated into said chamber, means for removing floated pollutants, and means for removing decanted pollutants; a plurality of filtration membranes being disposed within said chamber and submerged in the water to be treated; means for demarcating a filtration zone around each of said membranes; carrying and circulating means for guiding a current of the water to be treated in said filtration zone along a preferred direction, said carrying and circulating means including ozone-injection means for injecting ozone into said filtration zone; means for recovering permeate at an outlet of said filtration membranes; and a wall, disposed between the treatment chamber and the permeate-recovery chamber, being provided with means for injecting, into said membranes, a fluid for washing the membranes. - View Dependent Claims (34)
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Specification