Harvard School of Public Health - Yearbook (Cambridge, MA)

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ENGINEERING Gordon M. Fair aqueous chlorine with sulfamate, an addi¬ tive being used to stabilize residual chlorine in swimming pools, are being studied. It is hoped that all of this work can be sum¬ marized in a monograph within the next year or two. For the past three years, I have also been investigating the removal of detergents, pesticides and other noxious persistent com¬ pounds from wastes and polluted waters by adsorption on granular activated carbon. This has been a part of the Advanced Waste Treatment Program of the U. S. Public Health Service. Results have been encouraging and it appears that adsorption with granular beds of activated carbon may be an economically feasible method for water treatment in many instances. J. Carrell Morris Head of the Department 21

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SANITAR Y Myron Fiering T he principal areas of my research in¬ terest within the Sanitary Engineering Department have been two; the chemistry of the chlorination and disinfection of water supplies, and the adsorptive removal of persistent pollutants from waste waters. Gaseous chlorine or germicidal compounds of chlorine and other halogens when added to water react in a variety of ways with the water or with impurities in it. The germi¬ cidal effectiveness of a particular material or method of treatment is a function of the types of reactions occurring, their rates, and the equilibrium or final concentrations of the products of the reactions. Among the most significant of these reactions are those with ammonia or other nitrogenous com¬ pounds to yield chloramines. Studies on the formation and reactions of chloramines have been a continuing research interest for the past 18 years. Just now the reactions of 20

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Robert Balentine Reed Head of the Department of Biostatistics BIOSTATISTICS 22