Meeting of Ohio Filter Operators
With an attendance which represented 63 of the 65 Ohio water purification plants the third annual conference of the Ohio Conference on Purification met conjointly with the department of health of the state of Ohio on Wednesday, November 21 to 24, in Parlor B, Southern Hotel, corner of Ohio and Main Streets, Columbus, Ohio. One of the important conferences at this convention was on the treatment of public water supplies with iodine as a goitre preventive measure. This subject was discussed by Dr. E. R. Hayhurst of the state department of health. Dr. H. L. Rockwood, health commissioner, Cleveland; J. W. Ellms, consulting engineer; Clarence Bahlman. superintendent of filtration of Cincinnati; Dr. W. H. Peters, and others. The concensus of opinion seemed to be that the use of iodine in the water supply as a means of medication was wasteful and much more expensive than the plan of individual treatment.
Among the other subjects discussed were: Experience with Carbonators at the Defiance, Ohio, Plant, by H. T. Campion. superintendent; Description of a Carbonator, by C. P. Hoover, chairman of the conference and chief chemist of Columbus, Ohio; Progress in the Study of Efficiency Limitations of Water Purification Processes by the U. S. Public Health Service, by H. W. Streeter, sanitary engineer and several others. D. H. Rupp discussed the electrolytic action of various compositions of brass in East Liverpool filter strainers. He said that this action was probable responsible for underdrain troubles, which finally resulted in the reconstruction of the underdrains. There were several papers on filtration, water softening, carbonization and other matters connected with the work of operators.
A day of the convention was set apart to visit the water softening plant at Newark, Ohio, where an eight million gallon per day plant is under construction. On the same day the members were taken to Delaware, Ohio, to view the two million gallon per day plant completed last year, where mechanical mixing is used. The officers elected were: Chairman, Clarence Bahlman; vice-chairman, W. I. Van Arnum, and secretary, E. E. Smith.