The use of peristaltic pumps as the most effective method to pump sodium hypochlorite in water treatment plant applications. Tube life averages 7000-7500 hours in this low pressure application illustrated below:
The quality of life for Americans was greatly enhanced in the early 1900’s due to the introduction of chlorinated drinking water throughout the United States water systems. From the stockyards of Chicago to the Boonton Reservoir of Jersey City, the case was established that filtration alone was not sufficient to guarantee clean water. By the 1920’s, chlorination was well entrenched as the primary means of disinfecting drinking water. The combination of filtration and chlorination reduced typhoid fever by 91 percent within five years which lead to its near eradication by 1936, according to a statistical study of disease rates.
Chlorine-based disinfectants have been the choice for treating drinking water since the turn of the 20th century. This is the only type of disinfectant that provides a residual in the distribution system that is vital to preventing waterborne diseases. Three forms of chlorine that are commonly used are: gaseous chlorine, calcium hypochlorite tablets, and sodium hypochlorite solution. However, safety concerns and costs have prompted many municipalities to switch from chlorine gas to sodium hypochlorite. The most common disinfection method is some form of chlorine or its compounds such as chloramine or chlorine dioxide. Other non chlorine-based disinfectants are Ozone and UV radiation.
According to the Water Quality and Health Council, 98 percent of systems that treat water utilize chlorine-based disinfectants. Moreover, the World Health Organization concurs that disinfection by chlorine is still the best guarantee of microbiologically safe water.