Water Commissioner Dusinberre, of Cleveland, O., recently stated that he did not think the new filtration plant would be ready for operation before January 1, 1918.
The R. U. V. Co., of No. 50 Broad street, New York, has announced that the Northern Electric Co., of Montreal, will hereafter have exclusive Canadian selling rights for UltraViolet-Ray Water Sterilizers. These water sterilizers have been installed for purifying water for municipalities, industrial institutions, residences, swimming pools, bottlers, breweries, etc.
The city of Sistersville, W. Va., is installing a new filtration plant. Work on the plant is being rapidly done, and it will be in operation in a month or six weeks. The plant is being installed by the Pittsburgh Filtration Company. This company is now installing the large filtration plant in St. Louis. Up to date improvements and automatic devices are being used in the local plant. The water passes through four processes while being filtered and purified. A very small amount of alum and hyperchloride of lime is used in the purification. The whole process takes about seven hours. ‘
The State of Ohio, according to W. H. Dittoe, director of sanitary engineering of the state board of health, has forty-six water ptirificatioh plants serving municipalities having a total population of 2,250,000 or approximately 73 per cent, of the total urban population of the state. Most of the progress has been made in the last seven years, more than half of the plants having been installed since 1910. Six new plants were completed last year at these places: Cleveland, Barnesville, Attica, Cambridge, Napoleon and Wellington. The present year will see the construction of nine or ten additional plants. New plants are already under construction at East Liverpool, Warren, Ravenna, Medina, Lima, East Youngstown and’ Ironton. “Inspite of this development,” Mr. Dittoe recently told a local newspaper, “there is still room for improvement, as shown bv the existence of about 30 unfiltered surface water supplied, serving communities which have a total population of about 200,000.” The state health department supervises these water purification plants. Monthly reports of the operation are submitted to Mr. Dittoe’s department and frequent examinations are made.