Some granular activated carbon contactors are built with sloped-floor bottoms to sluice the media towards a central flume for easier removal. Pipe lateral type underdrains are required as common types of underdrains will not work because the floor is not level. Orthos’ R6 pipe laterals offer significant value over expensive-to-manufacture stainless wedgewire laterals.
There are two main design elements that determine pressure drop through a nozzle at a given flowrate. The first is screen construction.The second design element is the bore size of the thread section and the tailpipe, if used.
Phalanx™ Packaged Granular Media Filter Systems are custom-designed in circular or rectangular tankage with unit capacity from 20 gpm to over 1500 gpm. A brand member of Poseidon Filtration Systems™, Phalanx is used for conventional water treatment, wastewater tertiary filtration, biologically active filtration, GAC adsorption and ion exchange, as well as denitrification (DDBF™).
Orthos dissects a 13-slide presentation by Xylem-Leopold containing a multitude of misinformation and other misleading content against nozzle-based, reinforced-concrete, monolithic underdrain filter systems.
Orthos’ new stainless steel filter underdrain, MAXIMUS, solves a number of performance and installation issues and provides excellent distribution robust construction and quick commissioning.
MAXIMUS™ “free-flow” filter underdrain is constructed of robust, 10-gauge stainless steel and chemically-anchored to the filter floor using SST hardware for quick installation.
Orthos highly recommends nozzles to be located as close as practicable—
this is to ensure effective media cleaning through more points of energy input
and to potentially eliminate gravel and other types of problematic packing layers.
How do we know how to select the correct nozzle product for your application? Orthos has by far more injection molding capabilities and over a million nozzle design combinations in order to provide the correct solution for your application. R&D performed in our Orthos Research Center evolves new and improved nozzle products, while others still plug-and-chug mid-20th century legacy products in a one-size-fits-all manner.
Proteus™ Ozone+Biologically Active Filter (O3+BAF) Demonstration System to be primarily used at direct potable reuse (DPR) demonstration facilities
Why does Orthos want the toughest post-installation testing of gravity filters in the water/wastewater treatment industry? Because our competitors offer an overall less-effective underdrain system, often at a higher price, while falsely promising the same results that Orthos delivers time-after-time.