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Disinfection Byproduct Formation: Drinking Water Chlorination

Interactive 3D reactor simulator: watch chlorine react with dissolved organic matter in drinking water to form trihalomethanes (THMs) over time, with live chlorine residual, CT value and total-THM-vs-MCL readouts.

Chemistry & Materials3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

Chlorinating drinking water does more than kill pathogens — it also reacts with the dissolved organic matter naturally present in raw water to form trihalomethanes (THMs), a regulated disinfection byproduct. This simulator models a treatment reactor in 3D: adjust the chlorine dose, DOC concentration, bromide level and water temperature and watch, in real time, the free-chlorine residual decay, DOC precursor particles convert into THM molecules, and the CT disinfection credit accumulate — with a live readout of total THMs against the EPA's 80 µg/L regulatory limit.

⚙ Under the hood

Interactive 3D reactor simulator showing how chlorine reacts with dissolved organic matter in drinking water to form trihalomethanes (THMs), with live chlorine residual, CT value and total-THM-vs-MCL readouts.

water pollutionchlorinationdisinfection byproductstrihalomethaneswater chemistryreaction kinetics

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install