Accurate Gas Flow Measurement Improves Water Disinfection Process Efficiency

Turning raw water obtained from various ground or surface water supplies into clean potable water fit for human consumption or industrial purposes requires the removal of contamination sources. Such sources can include algae, bacteria, fungi, minerals, parasites and viruses. Many of these contaminants are potentially dangerous or even lethal to humans. Some contaminants merely affect the taste of water and are removed to make the water more palatable. There are three major stages of water treatment: primary treatment occurs that involves screening of water during the collection phase from ground or other sources. Secondary treatment removes fine solids and contaminants with filters and other techniques. Tertiary treatment includes disinfectant and other processes that improve taste and overall quality. Flow measurement is involved at all three stages in the process, but gas flow measurement is critical during disinfection processes that rely on chlorine gas. The proper dosing of chlorine into the water filtration system requires precise and repeatable flow measurement of chlorine