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LETTER TO EDITOR REGARDING "ARSENIC CHALLENGES FOR WATER UTILITIES"
Citation:
Sorg*, T J. LETTER TO EDITOR REGARDING "ARSENIC CHALLENGES FOR WATER UTILITIES". American Water Works Association, Denver, CO, (11).
Description:
The two part series on "Arsenic Challenges for Water Utilities" have provided useful information for the many small water utilities faced with arsenic problems. Part II states that treatment options fall into six major categories and then proceeds to provide a short summary on each technology and a short discussion on "Treatment Selection Considertions". Unfortunately, Part II fails to mention one very important group of arsenic treatment options; the iron and manganese removal processes. These processes, that include oxidation/filtration and manganese greensand, are very effective treatment processes for arsenic removl and have been listed by EPA as BAT when the Fe:As ratio of the water is greater than 20:1.