March 18, 1915: Engineering Newsarticle. Liquid Chlorine at the Bubbly Creek Water-Filtration Plant. By C. A. Jennings. “The Bubbly Creek filter plant at the Chicago Stock Yards set the lead in the use of hypochlorite of lime in this country for water disinfection. This was during the summer of 1908. Subsequently experiments were begun at this plant with an electrolytic cell for the production of chlorine from salt brine. These experiments were carried out very extensively and thoroughly. The writer finally concluded that in comparison with hypochlorite and liquid chlorine, the production of chlorine for water disinfection by means of an electrolytic cell was expensive, uncertain and demanded considerable attention.
Very recently a liquid-chlorine apparatus was purchased. Chlorine is received in cylinders that hold 105 lb. of the liquefied gas. From the experience gained by operating this apparatus during the past month the writer has concluded that in comparison with the use of hypochlorite at the Bubbly Creek filter plant–
- There is considerably less labor involved.
- The absorption of the gas by the water is more rapid.
- There is no loss of chlorine, and smaller quantities can be used to accomplish equivalent results.
- There is no deterioration of the chlorine in the cylinders while using or while stored.
- The changing of the rate of application is easily, quickly and accurately accomplished.
- There is no odor of chlorine about the plant.
- The cost is considerably less.
Reference: Jennings, C.A. 1919. “Liquid Chlorine at the Bubbly Creek Water-Filtration Plant.” Engineering Newsarticle 73:11(March 18, 1915): 555.
Commentary: Jennings is one of the engineers who spread the myth that chlorination of water at the Bubbly Creek plant was somehow a breakthrough for water disinfection. Publications by him and the man who wrongly claimed credit for the first use of chlorine in drinking water (George A. Johnson) resulted in Dr. John L. Leal not receiving the proper credit for his work at Boonton Reservoir on the Jersey City, New Jersey water supply in 1908. The water from the Bubbly Creek plant was fed to cows and pigs and was not considered suitable for human consumption.