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http://dx.doi.org/10.5762/KAIS.2011.12.1.545

Corrosion control technique for pipeline system through injecting water stabilizer  

Hwang, Byung-Gi (Division of Civil and Engineering, Sang Myung University)
Woo, Dal-Sik (Korea Interfacial Science and Engineering Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.1, 2011 , pp. 545-551 More about this Journal
Abstract
Recently, demands for generating high quality tap waters are increasing with high concern of water pollution and corrosion of water pipelines. For the reasons, developing water quality stabilization technique in water purification system is sought rather than replacing to a new pipelines. In this study, high-purity liquid lime($Ca(OH)_2$) was introduced for a water quality stabilization technique in water purification process and simulated water distribution system of pilot-scale size was applied to evaluate anti-corrosion control effect. The effect of anti-corrosion control was calculated in terms of LSI(Langelier Saturation Index) In conclusion, the result of pilot plant showed improvement of corrosiveness by liquid lime($Ca(OH)_2$) with reduction of released iron(Fe). Application of anti-corrosion control technique to the mild steel coupon and the copper coupon were effective by indicating 35.4, 44.5% of improvements. Besides, sample pipes which were treated with liquid lime had formated more thicker layer of corrosion product inside of pipes. As a result, the process of injecting water stabilizer can greatly contribute to the high quality of tap water.
Keywords
Liquid Lime; Water Stabilization; LSI(Langelier Saturation Index); Corrosion Control;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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