Journal Article

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Journal of environmental health

J.Environ.Health

Sep

70

2

29

36, 44, 46

LR: 20131121; JID: 0405525; 0 (Disinfectants); 0 (Water Pollutants, Chemical); 4R7X1O2820 (Chlorine); 789U1901C5 (Copper); E1UOL152H7 (Iron); ppublish

United States

0022-0892; 0022-0892

PMID: 17886579

eng

Journal Article; Research Support, Non-U.S. Gov't; IM

Unknown(0)

17886579

A large-scale pilot study was carried out to evaluate the impacts of changes in water source and treatment process on iron and copper release in water distribution systems. Finished surface waters, groundwaters, and desalinated waters were produced with seven different treatment systems and supplied to 18 pipe distribution systems (PDSs). The major water treatment processes included lime softening, ferric sulfate coagulation, reverse osmosis, nanofiltration, and integrated membrane systems. PDSs were constructed from PVC, lined cast iron, unlined cast iron, and galvanized pipes. Copper pipe loops were set up for corrosion monitoring. Results showed that surface water after ferric sulfate coagulation had low alkalinity and high sulfates, and consequently caused the highest iron release. Finished groundwater treated by conventional method produced the lowest iron release but the highest copper release. The iron release of desalinated water was relatively high because of the water's high chloride level and low alkalinity. Both iron and copper release behaviors were influenced by temperature.

Chlorine/chemistry, Copper/analysis/chemistry, Corrosion, Disinfectants/chemistry, Environmental Monitoring, Iron/analysis/chemistry, Water Pollutants, Chemical/analysis/chemistry, Water Purification/methods, Water Supply/analysis

Shi,B., Taylor,J. S.

Chinese Academy of Sciences, State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Haidian, Beijing, China. byshi@rcees.ac.cn

http://vp9py7xf3h.search.serialssolutions.com/?charset=utf-8&pmid=17886579

2007