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Title 22 Testing: DuraPile™ Cloth Media

Excellent results have come from bench top protocol Title 22 testing of Beacon’s GDisk® DuraPile™ cloth media.  Testing preliminarily indicates that our 10-, 5-, and 2-micron filtration rating cloths will all meet California Title 22 requirements, to include less than 2 NTU average within a 24-hour period. 

Testing Results

• Note that standard engineering design for 10-micron pile cloth utilizes approximately 3.25 gpm/ft2 average and 6.5 gpm/ft2 peak.

• Data collected for these graphs is terminated at approximately 8 inches of water column headloss, the typical range before a pile cloth disk filter enters backwash.

• Know that Beacon would standardly design approximately half the flowrate per ft2 tested here, which would extend filter run times.

Title 22 Test Results
This graph shows effluent turbidity of the 10-micron Beacon GDisk® DuraPile™ NLB10 and Brand A medias from typical secondary influent at 6 gpm/ft2. One may see the results are on top of each other.
Two more filter runs of our 10-micron NLB10 cloth show effluent well less than 2 NTU from typical secondary influent at 6 gpm/ft2.
Two more filter runs of our 10-micron NLB10 cloth show effluent well less than 2 NTU from typical secondary influent at 6 gpm/ft2.
Title 22 Test Results
Two more filter runs of our 10-micron NLB10 cloth show effluent well less than 2 NTU from typical secondary influent at 6 gpm/ft2.
Title 22 Test Results
This graph shows data at 6 gpm/ft2 from spiked filter influent at a high turbidity almost 10 NTU. Our 10-micron NLB10 cloth remains below 2 NTU throughout the filter run.
Title 22 Testing Results
This graph shows the results from a very high flowrate at 22 gpm/ft2 with influent of 3 NTU. All effluent data from the DuraPile™ NLB10 cloth is well below the 2 NTU requirement.
Title 22 Testing Results
This graph compares performance of the 10-micron DuraPile NLB10 versus the 5-micron DuraPile FineLB5 cloth at an elevated 12 gpm/ft2 with typical secondary influent. Notice the excellent performance of both cloths. The shorter filter run of the FineLB5 cloth is expected, as more solids are removed to produce better relative effluent quality.
Title 22 Test Results
This graph shows effluent turbidity of the 5-micron Beacon DuraPile™ FineLB5 and Brand A 5-micron medias from typical secondary influent at 6 gpm/ft2. One may see the results are extremely similar.
Title 22 Testing Results
Another filter run at 6 gpm/ft2 comparing the 5-micron DuraPile™ FineLB5 and Brand A medias is graphically shown here. Typical secondary influent of 4 NTU produces effluent mostly under 1 NTU for both cloths.
Title 22 Testing Results
This graph shows data at 6 gpm/ft2 from spiked filter influent at a high turbidity almost 10 NTU. Our FineLB5 cloth remains below 2 NTU throughout the filter run.
Title 22 Testing
This graph presents results from testing our 2 micron filtration rating UltraLB2 cloth. Even at 6 gpm/ft2, this cloth produced excellent effluent at approximately 0.6 NTU from typical secondary influent.

Up Next

Three California utilities are formally sponsoring Beacon’s Title 22 approval effort. We will commission our pilot unit in October at the Meridian WWTP in Idaho. We at Beacon look forward to keeping you updated on our Title 22 testing progress!

Meridian Idaho Wasterwater Facility

If You Have Brand A, Replace with Brand B (Beacon)!

Disk Filter Replacement Cloth

For legacy competitor installations, contact BEACON for direct replacement cloths (DuraPile™ 10, 5, & 2 μm) and exchange services.

Call 843-481-4470 or click below for a quote!

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