Oldcastle Infrastructure: Removing nitrogen from urban stormwater runoff


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Oldcastle Infrastructure is seeking technologies to remove nitrogen from urban stormwater runoff that can be used in combination with existing treatment methods, like bioretention, biofiltration or filtration.

Requirements:

  • Capable of reliably removing at least 50% of total nitrogen from urban stormwater
  • Can be deployed in urban stormwater drainage systems
  • Does not export pollutants, including sediment, phosphorus, or metals
Preferred requirements:
  • A passive approach that does not require chemical or energy inputs
  • Accommodates treatment flow rates in the range of 1-2 gpm per square foot of treatment area
  • Capable of removing phosphorus as well as nitrogen

Funding is proposal-dependent and typically ranges from $40,000 to $75,000 for a 6- to 9-month proof-of-concept project with the potential for follow-on funding.

Proposal deadline: 4/30/21


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