Fluid treatment media support system
First Claim
Patent Images
1. A system for supporting granular filter media comprising:
- a filter comprising a filter bottom, underdrain blocks adjacent the filter bottom and filter media;
a rigid porous plate positioned over the underdrain blocks to support the filter media;
wherein the porous plate includes integral layers of different pore size.
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Abstract
A filter media support system that reduces media clogging and head loss in granular filtration systems by providing a layered porous plate. The porous plate can have multiple layers of fine sized and coarse sized pores. The porous plate is positioned between the media and the filter bottom. The filter media support system is securely anchored to the infrastructure of the underdrain system thereby inhibiting media penetration of the filter bottom and avoiding seal failures. The infrastructure can be air lateral piping fitted beneath the underdrain blocks of the support system. The anchors can be secured to pipe clamps circumscribing the air laterals.
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Citations
16 Claims
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1. A system for supporting granular filter media comprising:
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a filter comprising a filter bottom, underdrain blocks adjacent the filter bottom and filter media;
a rigid porous plate positioned over the underdrain blocks to support the filter media;
wherein the porous plate includes integral layers of different pore size. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for supporting granular filter media comprising:
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a filter comprising a filter bottom, an infrastructure comprising air laterals, underdrain blocks adjacent the filter bottom and filter media;
a rigid porous plate positioned over the underdrain blocks to support the filter media, the porous plate comprising integral layers of different pore size, the porous plate anchored to the air laterals beneath the underdrain blocks. - View Dependent Claims (9)
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10. A filter system for supporting granular fluid treatment media comprising:
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a filter comprising a filter bottom, the filter bottom comprising infrastructure;
a layer of underdrain blocks placed over infrastructure of the filter bottom;
a rigid porous plate placed over the underdrain blocks adapted to support the granular fluid treatment media, the porous plate including integral layers of different pore size;
anchors extending from the porous plate through the layer of underdrain blocks securing the porous plate to the infrastructure.
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11. A filter system for supporting granular fluid treatment media comprising:
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a filter comprising a filter bottom, the filter bottom comprising infrastructure;
a layer of underdrain blocks placed over infrastructure of the filter bottom;
a rigid porous plate placed over the underdrain blocks adapted to support the granular fluid treatment media, the porous plate including integral layers of different pore size;
anchors extending from the porous plate through the layer of underdrain blocks securing the porous plate to the infrastructure; and
the infrastructure comprising a plurality of air laterals running under the underdrain blocks, and anchors secured to the air laterals. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification