Modeling nitrification cycles
Just a heads-up—this section is still a work in progress! I’ll be revising and expanding it soon to make sure it’s as useful as possible. Curious about what’s already done or currently in the works? Check the changelog for updates.
Nitrification, a microbially driven process, can be a major water quality headache for distribution systems, particularly those that use chloramine as a secondary disinfectant. It can lead to a loss of disinfectant residual, an increase in biofilm growth, and the undesirable production of nitrite and nitrate, potentially exceeding regulatory limits.
This section explains how advanced water quality models can be used to simulate the key biological and chemical reactions involved in the nitrification cycle. The process is primarily driven by two groups of microorganisms: Ammonia-Oxidizing Bacteria (AOB), which convert ammonia to nitrite, and Nitrite-Oxidizing Bacteria (NOB), which then convert nitrite to nitrate.
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