Industrial Odour Control: Dos and Dont's The planning and designing of an odour control system should be done carefully. Various factors have to be considered, or else a chemical odour control scrubber can cause havoc while treating hydrogen sulfide or ammonia gasses. With the right odour control system, you can avoid problems with calcium chloride and other corrosive gasses. How to ensure the optimum functioning of your chemical odour control systems: The chemical odour control systems which are designed for municipal water treatment plants are attached to a degasification process. This is required to treat Hydrogen Sulfide (H2S). Mostly caustic soda or sodium hypochlorite or chlorine are used to treat hydrogen sulfide. They are already in place in a water treatment facility to adjust and control pH. However, the entry of caustic soda into the chemical odour control system can cause foul smells and scale build-up. This...