Online ExclusivesAn Introduction to Passive Nitrogen Removal

An Introduction to Passive Nitrogen Removal

It is very likely passive nitrogen removal systems will become more popular in the future. Here’s what you need to know.
  • By Sara Heger, Ph.D.
  • January 22, 2018
An Introduction to Passive Nitrogen Removal
An Introduction to Passive Nitrogen Removal

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Onsite Septic System Nitrogen Removal Onsite System Design

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An Introduction to Passive Nitrogen Removal
Example of passive test system with loamy sand overlying layer of sand/silt/sawdust. (Photo credit Barnstable County Health)

Conventional soil treatment areas are designed to have an aerobic environment for the removal of organic material (BOD) and pathogens. This aerobic environment is also very conducive to nitrification — the biological oxidation of NH4+ to NO3-. The nitrate formed by nitrification...

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