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Evaluating Alternative Disinfectants for THM Control in Small Systems
Author(s) -
Myers Anthony G.
Publication year - 1990
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1990.tb06981.x
Subject(s) - trihalomethane , potassium permanganate , chloramine , chlorine , ozone , chlorine dioxide , chemistry , environmental chemistry , hydrogen peroxide , water treatment , chloramination , environmental science , aeration , environmental engineering , inorganic chemistry , organic chemistry
A pilot‐plant study was conducted at two water utilities to evaluate alternative disinfectants—ozone, hydrogen peroxide, chlorine dioxide, chloramines, and potassium permanganate—for trihalomethane (THM) control and to determine the impact of their use on small water systems. Air stripping and activated carbon were also evaluated. Combinations of alternative disinfectants reduced THMs to a range of levels from approximately 160 μg/L using chlorine to 80 μg/L (chlorine‐monochloramine) or <5 μg/L (ozone‐monochloramine). The costs of incorporating various process modifications into small water systems were estimated.