Halogenated Byproduct Formation by ClO2 and Cl2

by Bruce M. Chow, Engr.; James M. Montgomery, Consulting Engrs., Inc., 555 East Walnut Street, Pasadena, Calif. 91101,
Paul V. Roberts, (M.ASCE), Adjunct Professor; Dept. of Civ. Engrg., Stanford Univ., Stanford, Calif. 94305,


Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 4, Pg. 609-618


Document Type: Journal Paper

Abstract: The formation of halogenated organic byproducts, resulting from treating wastewater effluents with chlorine dioxide and chlorine, was studied in laboratory experiments. Total trihalomethanes (TTHM) and total organic halogen (TOX) were measured as criteria for halogenated organic byproduct formation. Chlorine dioxide and chlorine were compared at equal mass doses. Two wastewater effluents were studied—one containing substantial amounts of ammonia nitrogen and another containing less. Chlorine formed significant amounts of halogenated organics in both effluents. The amount of TOX produced by chlorine corresponded to 5 to 20 times the halogen content indicated by TTHM determinations.

Subject Headings: Chlorine | Wastes | Effluents | Wastewater treatment | Trihalomethanes | Ammonia | Nitrogen

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