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Constructed Wetland to Remove Nitrate: Wetland Design Hydrology

Constructed Wetland to Remove Nitrate: Wetland Design Hydrology. By: Cibin Raj. Introduction. Objectives Simulate inflow to the wetland To determine monthly average depth of water in wetland To find out the area extend of wetland (monthly) Estimate residence time. Tasks completed.

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Constructed Wetland to Remove Nitrate: Wetland Design Hydrology

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  1. Constructed Wetland to Remove Nitrate: Wetland Design Hydrology By: Cibin Raj

  2. Introduction Objectives • Simulate inflow to the wetland • To determine monthly average depth of water in wetland • To find out the area extend of wetland (monthly) • Estimate residence time Taskscompleted • Decided to try simulating inflow to the wetland using SWAT • Collectedthe data-DEM (10 m),land use map (NLCD 2001), soil data (STATSGO), precipitation, temp • SWAT model for one wetland

  3. Limitations of HEC-HMS • Event based model • Difficult to simulate tile drained condition • The watershed characteristics has to be provided as input • SWAT model • Can give a better simulation for tile drained areas • Constructed wetland can be modeled by considering as a reservoir

  4. StudyArea

  5. SWAT 47 sub-basins 1 reservoir

  6. HRUdelineation

  7. Simulated Daily Reservoir Volume for 11 years

  8. Tile Drain Parameters: DDRAIN,TDRAIN,GDRAIN [90 mm, 48 hrs,2 hrs]

  9. Thank you

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