SmartDrainTM for Enhanced Biofiltration Controls - Unix.eng.ua.edu

More documents

Recommendations

Info

Typical biofilter as modeled in WinSLAMM for an area having poor soils.
Biofilter Underdrain Options and Water Balance • The sandy-silt loam soil results in extended surface ponding, requiring an underdrain (736 hours of rain per year; 44,500 ft 3 /acre discharged to biofilters per year). • Conventional underdrain (3 inch perforated pipe) reduces ponding, but also decreases infiltration opportunities and decreases contact time with media. • SmartDrain TM also reduces ponding time, while providing additional infiltration and increased media contact time. Annual runoff (ft 3 /acre/year) and percentage fate: Surface ponding (hrs/year) No underdrain 1,480 Typical 3 inch underdrain 530 SmartDrain TM 1,080 Infiltration volume 31,700 (72%) 17,200 (39%) 26,300 (59%) Surface discharge 12,800 (28%) 4,400 (10%) 10,500 (23%) Subsurface (filtered) discharge 0 Surface discharge reduction (%) (0%) 72% 22,900 (51%) 38% 7,800 (18%) 58%
Page 1 and 2: SmartDrain TM for Enhanced Biofiltr
Page 3 and 4: Kansas City’s CSO Challenge • C
Page 5 and 6: Adjacent Test and Control Watershed
Page 7 and 8: Examples from “65%” plans prepa
Page 9 and 10: Annual Runoff Reductions from Paved
Page 11 and 12: Clogging Potential for Different Si
Page 14 and 15: • Goals: Media Testing - To provi
Page 16 and 17: layered S-Z-GAC R-SMZ-GAC-PM Granul
Page 18 and 19: Column Test Results: Pollutant Remo
Page 20 and 21: This image cannot currently be disp
Page 22 and 23: Cumulative Particulate Loading to F
Page 24 and 25: Varying Depth Column Test Results
Page 26 and 27: Contaminant Losses during Anaerobic
Page 29 and 30: Many Areas Require Biofilter Draina
Page 31 and 32: • Outlet control can be more cons
Page 33 and 34: Variables affecting the drainage ch
Page 35 and 36: Experimental procedure Cont. • Du
Page 37 and 38: Slope tests on the SmartDrain TM ma
Page 39 and 40: Examining the clogging potential of
Page 41 and 42: Turbidity measurements taken from t
Page 43: Smart Drain Flow Rates Compared to
Page 47 and 48: Biofouling Tests of SmartDrain TM M
Page 49 and 50: Stage-discharge relationships for t
Page 51: Acknowledgements • The US EPA is

SmartDrainTM for Enhanced Biofiltration Controls - Unix.eng.ua.edu

Create successful ePaper yourself

Delete template?

Save as template?