What are the advantages and disadvantages of using chlorine gas versus sodium hypochlorite for wastewater disinfection?

Chlorine gas and sodium hypochlorite are both commonly used disinfectants in wastewater treatment. They each have advantages and disadvantages that influence their suitability for different applications. Chlorine gas advantages include lower cost. Chlorine gas is generally less expensive per unit of available chlorine than sodium hypochlorite, especially for large-scale applications. Stronger disinfectant is an advantage because chlorine gas typically provides more effective disinfection than sodium hypochlorite, particularly at lower temperatures. Disadvantages of chlorine gas include safety concerns. Chlorine gas is a highly toxic and corrosive gas that poses a significant health and safety risk to plant personnel and the surrounding community. Requires specialized equipment b....