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How to Tame an Aggressive Softened Water
Author(s) -
Harms Leland L.,
Kwan Bennet C.,
Sarai Darshan S.
Publication year - 1994
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1994.tb01233.x
Subject(s) - alkalinity , flushing , water quality , penetration (warfare) , carbonate , calcium carbonate , corrosion , precipitation , environmental science , metallurgy , materials science , engineering , chemistry , composite material , meteorology , geography , ecology , biology , organic chemistry , operations research , endocrinology
Water District No. 1 of Johnson County, Kansas, improved its finished water quality by adopting operating techniques that ensured the precipitation of calcium carbonate throughout the distribution system. Carbonate precipitation was achieved by slightly raising pH, alkalinity, and total hardness levels. Results showed a decrease in corrosion rates as well as a decrease in consumer complaints regarding water quality. When adapting the methods discussed in this article to other water systems, coupons should be placed near the treatment plant and midway in the distribution system. A few coupons placed near dead ends will help discern whether the adjusted treatment is penetrating the entire system. Flushing dead‐end lines will help facilitate this penetration.