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http://dx.doi.org/10.11001/jksww.2018.32.2.183

Effect of corrosive water quality control and corrosion index monitoring in pilot scale pipeline simulator  

Kim, Do-Hwan (Water Quality Institute, Busan Water Authority)
Kim, Yung-Jin (Water Quality Institute, Busan Water Authority)
Son, Hee-Jong (Water Quality Institute, Busan Water Authority)
Ryou, Dong-Choon (Water Quality Institute, Busan Water Authority)
Ahn, Jun-Young (Department of Civil & Environmental Engineering, Pusan National University)
Kim, Cheolyong (Department of Civil & Environmental Engineering, Pusan National University)
Hwang, In-Seong (Department of Civil & Environmental Engineering, Pusan National University)
Publication Information
Journal of Korean Society of Water and Wastewater / v.32, no.2, 2018 , pp. 183-192 More about this Journal
Abstract
Applicability of corrosion inhibitor was evaluated using pilot scale water distribution pipe simulator. Calcium hydroxide was used as corrosion inhibitor and the corrosion indices of the water were investigated. Corrosion indices, Langelier saturation index (LI) increased by 0.8 and calcium carbonate precipitation potential (CCPP) increased by 9.8 mg/L. This indicated that corrosivity of water decreased by corrosion inhibitor and the effects lasted for 18 days. Optimum calcium hydroxide dose was found to be 3~5 mg/L for corrosion inhibition. We suggest that monitoring of CCPP as well as LI need to be conducted to control corrosivity of water.
Keywords
Calcium carbonate precipitation potential; Corrosion control; Langelier saturation index; Water pipe;
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Times Cited By KSCI : 2  (Citation Analysis)
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