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Wahaso - Chlorination for Dry Hypochlorite Sanitizing System
If residual sterilization capacity is required, added chlorine is the most common approach. For Wahaso projects, our preferred method of chlorination is calcium hypochlorite in the form of solid briquettes. The chemical is similar to that used in a municipal water treatment systems but is in a form that is safer and easier for building maintenance staff to handle.
Wahaso’s dry hypochlorite sanitizing system uses chlorine briquettes that are added to a hopper in the dosing unit where they are combined with water to make a high concentration chlorine liquid. An automatic free chlorine analyzer continuously monitors the parts per million (ppm) level and proportionally controls a chemical injection pump to dose in more chlorine as necessary to maintain the preset level.
Other sterilizing agents that can be used include Ozone and Chlorine Dioxide. These sterilizing agents are very powerful and are typically only used on greywater systems. They are more hazardous to handle and require on-site generation of the Ozone or Chlorine Dioxide gas plus an injection system.