Printable PDF Curler Sizing Table

BEAD FILTER / MBBR SIZING RECOMMENDATIONS

 PBF-3PBF-5PBF-5SPBF-10PBF-10SPBF-25PBF-25SPBF-50PBF-50S
Flow Rate (gpm)3050100100200200300300600
Max Daily Feed Rate (lbs/day)1525255050125125250250
Feed Protein (%)353535353535353535
Total Daily TAN Production (g TAN/day)2203663667327321830183036593659
Removal Assigned to PBF (g TAN/day)1525255050125125250250
Daily TAN Assigned to MBBR (g TAN/day)2053413416826821705170534093409

TAN removal rate of 17.1 g TAN/ft3 Curler Advanced X-1 Media at 25 to 30 Deg. C.

 PBF-3PBF-5PBF-5SPBF-10PBF-10SPBF-25PBF-25SPBF-50PBF-50S
Volume of Media (ft3)1525255050124124249249
Reactor Volume (gal)2233723727447441860186037203720
HRT (min)7.47.43.77.43.79.36.212.46.2
Required Air Flow (scfm)3.76.26.212.412.431316262

TAN removal rate of 13.3 g TAN/ft3 Curler Advanced X-1 Media at 15 to 20 Deg. C.

 PBF-3PBF-5PBF-5SPBF-10PBF-10SPBF-25PBF-25SPBF-50PBF-50S
Volume of Media (ft3)1932326464161161321321
Reactor Volume (gal2884804809609602400240048104810
HRT (min)9.69.64.89.64.8128168
Required Air Flow (scfm)4.888161640408080

TAN removal rate of 10.1 g TAN/ft3 Curler Advanced X-1 Media at 5 to 10 Deg. C.

 PBF-3PBF-5PBF-5SPBF-10PBF-10SPBF-25PBF-25SPBF-50PBF-50S
Volume of Media (ft3)2542428484210210420420
Reactor Volume (gal)377630630126012603140314062906290
HRT (min)12.612.66.312.66.315.710.52110.5
Required Air Flow (scfm)6.310.510.521215353105105

Notes:
Flow Rate (gpm) – Maximum flow rate of corresponding PBF
Max Daily Feed Rate (lbs/day) – Based on PBF being operated for solids capture only, i.e. maximum daily feed input of 5 lbs/ft3 of bead media
Total Daily TAN Production (g TAN/day) – Calculation assumes 32.2 g TAN/kg feed for 35% protein feed and does not take into account in-situ nitrification which can range from 10 to 30%
Removal Assigned to PBF (g TAN/day) – Assign a removal rate of 33% of normal nitrification capacity due to high backwash frequency and high loading rate, i.e. 5 g TAN/ft3 beadmedia -day
Volume of Media (ft3) – A safety factor of 25% is included in the MBBR media volume
Reactor Volume (gal) – Recommended starting with a fill volume percentage of 50%, maximum 70%.
Required Air Flow (scfm) – Includes 50% safety factor/spare capacity.
PBF-50 & PBF-50S – Recommend utilizing two MBBR based on PBF-25 and PBF-25S design parameters