While wetlands are responsible for a relatively large percentage of methane emissions, some scientists have suggested that lakes and other bodies of water may also contribute heavily. Small lakes have higher methane fluxes per unit area than large lakes. Recent estimates have significantly increased the number of small lakes worldwide. New research efforts can help to determine the scope of these emissions.
For the San Juan Cosala plant, CEA Jalisco evaluated disinfection using chlorine, sodium hypochlorite and also considered moving away from chemical disinfection entirely and converting to UV. This case study explains their evaluation process and why they ultimately decided to install UV.