Pill Shaped Tanks

Pill shaped tanks use a combination of circular and rectangular structural designs and are the optimal shape for oxidation ditches and other activated sludge applications.

Features & Benefits

  • Above grade or buried
  • Concrete remains in constant compression
  • Aesthetic versatility
  • Maintenance-free
  • Cost savings
  • Higher quality concrete due
  • Faster installation
  • Smaller environmental footprint

Pill Shaped Post-Tensioned Concrete Tanks

Dutchland precast post-tensioned concrete pill shaped tanks use a combination of circular and rectangular structural designs and are the optimal shape for oxidation ditches and other activated sludge applications. Each structure is custom-designed by our experienced engineering team to meet the specific needs of each project. Dutchland pill shaped tanks are designed to AWWA D115 Standard and/or ACI 350 Standard and can be constructed as single or multiple interconnected concentric channels to accommodate process needs or site constraints.

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Technical Details

  • AWWA D115 Standard and/or ACI 350 Standard
  • Panelized precast walls
  • Post-tensioned structure
  • Un-bonded Horizontal Tendons
  • Designed for 5,000 – 6,000 psi
  • Cast-in-place base slab
  • Tank geometry has flexibility 
  • Open top or roofed

Applications:

  • Extended Aeration
  • Oxidation Ditches
  • Water storage (reservoir replacement/upgrade)
  • Aeration
  • Anoxic Reactors
  • Bioreactors
  • Combined Sewer Overflow
  • Effluent
  • Equalization
  • Extended Aeration
  • Post-Equalization
  • Pre-Equalization
  • Sequential Batch Reactors
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