| 摘要 |
A system for supporting fluid-treatment media above a lower surface that reduces media clogging and head loss in granular fluid-treatment media syste ms by providing a layered porous plate. The porous plate can have multiple laye rs of fine sized and coarse sized pores. The porous plate is positioned between the media and the filter bottom. The system for supporting fluid-treatment media 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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