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Biofilters: A Natural Approach to Storm Water Pollutant Removal

Bioswales and constructed wetlands are under increasing use to address pollutants in storm water runoff. However, many installations of these BMPs have failed or have not been as successful as hoped. This interactive online course provides a discussion of the concepts of biofilters. Most of the failures can be attributed to insufficient information being available or to bad or no expert input into the design, construction, vegetating, or maintenance of the bioswale or constructed wetland. This course is intended to provide information on the design and use of biofilters so that designers will be able to make better decisions on the design, construction, implementation, and maintenance of these Best Management Practices.

At the conclusion of the course, you will be able to:

  • Demonstrate the basic concepts of bioswales, vegetated filter strips and constructed wetlands
  • Illustrate how soils influence the pollutant removal ability of biofilters
  • Recognize the importance of microorganisms in pollutant removal
  • Discuss the mechanisms by which vegetation assists in removing storm water pollutants
  • List the hydrologic and hydraulic design properties necessary for a bioswale
  • Explain the removal efficiencies that can be expected from a well-constructed bioswale and a well-constructed wetland

Course Price: $ 77.90


Continuing Education Credits approved for:
  • AIA
  • IEI
  • LEED
  • OAA