Browse > Article
http://dx.doi.org/10.7464/ksct.2010.16.3.162

Development of Chemical Cleaning Agents for Cleaning Indoor Water Supply Pipes  

Lee, Jae-Hoon (Department of Chemical and Biochemical Engineering, The University of Suwon)
Jung, Jae-Yong (Department of Chemical and Biochemical Engineering, The University of Suwon)
Park, Yong-Bae (Department of Chemical and Biochemical Engineering, The University of Suwon)
Bae, Jae-Heum (Department of Chemical and Biochemical Engineering, The University of Suwon)
Woo, Dal-Sik (Korea Interfacial Science and Engineering institute)
Sin, Hyun-Duk (Chem.c-Tech Co., Ltd.)
Publication Information
Clean Technology / v.16, no.3, 2010 , pp. 162-171 More about this Journal
Abstract
The objective of this study is to develop cleaning agents for the indoor water supply pipe which is environmentally friendly and suitable for removing scale by using various organic acids, inorganic acids, and some additives. Among various organic acids, oxalic acid, citric acid, and malic acid showed good cleaning efficiency of iron oxides which were main components of the indoor water supply pipe scale. Several cleaning agents were formulated by adding chemical additives into these organic acids and evaluated for removal of iron oxides. In this study, it was found that nonionic surfactants were excellent for the removal of iron oxide scale among various additives. Two types of cleaning agents($F_1$, $F_2$) with comparatively high solvent power for iron oxides were formulated in this study. The cleaning agents $F_1$ made by organic acids and some additives were formulated to be safe and environmentally friendly, but seemed to have disadvantage due to their comparatively low cleaning efficiency of iron oxide than $F_2$. But, the cleaning agents $F_2$ prepared by adding inorganic acid a little to $F_1$ showed comparatively good cleaning efficiency of iron oxide and could be recommended for removing hard scale of iron oxides in the indoor water supply pipe. Thus, it is considered that the formulated cleaning agents should be selected based on the extent of scale in the indoor water supply pipe.
Keywords
Chemical cleaning agents; Iron oxide; Indoor water pipe; Organic acid;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim, H, S., and Bae, J. H., "Evaluation of Cleaning Ability of Aqueous Cleaning Agents According to Their Additives," Clean Tech., 12(1), 1-9 (2006).
2 Wiersma, B. J., and Subramanian, K. H., "Corrosion Testing of Carbon Steel in Acid Cleaning Solution," Westinghouse Savanah River Company, WSRC-TR-2002-00427, 2002.
3 Skoog, D. A., West, D. M., and Holler, F. J., Fundamentals of Analytical Chemistry, 7th ed., Thomson, 1996.
4 Veglio, F., Barbaro, M., Plescia, P., and Marabini, A. M., " Drum Leaching Tests in Iron Removal from Quartz using Oxalic Acid and Sulphuric Acids," Int. J. Miner. Process., 54, 183-200 (1998).   DOI   ScienceOn
5 Ambikadevi, V. R.,and Laithambika, M., "Effect of Organic Acids on Ferric Iron Removal from Iron-stained Kaolinite," Appl. Clay Sci., 16, 133-145 (2000).   DOI   ScienceOn
6 Panias, D., Taxiarchou, M., Paspaliaris, I., and Kontopoulos, "Mechanisms of Dissolution of Iron Oxides in Aqueous Oxalic Acid Solutions," Hydrometallurgy, 42, 257-265 (1996).   DOI   ScienceOn
7 Lee, W, P., "Characterization of the Tongdong Illite Ore Deposit and Removal of Iron Oxides using L-Ascorbic and Oxalic Acids," Master's Thesis, Yonsei university, Seoul, Korea (2006).
8 Yacklon, J. C., and Farmerie, J. E., "Extending the Life of Cast-iron Pipes," Opflow, 30(9), 4-6 (2004).
9 Drinking Water Treatment Chemicals - Health Effects, NSF/ ANSI60-2009a (2009).
10 Lee, H. D., Bae, C. H., Park, J. H., Shin, H. J., and Cho, C. S., "Old Supply Pipe Cleaning of Air-Pulse Wave and Cleaning Chemical," J. Korean Soc. Water Qual., 17(6), 727-736 (2001).
11 Plishka, M. J., "Chemical Cleaning Process for Water Systems," Water Engineering & Management (1996).
12 http://health.chosun.com/site/data/html_dir/2010/03/22/20100 32201704.html
13 Ellison, D., "Investigation of Pipe Cleaning Methods," AWWA Foundation and American Water Works Association (2003).
14 Edstrand, C., Hieatt, A., and Ludwig, J., "Chemical Cleaning Process for Water Pipe Systems," 288-294, Conference Proceedings on Hydraulics of Pipe Lines, American Society of Civil Engineers (1994).
15 http://www.wbdg.org/ccb/DOD/UFC/ufc_3_240_13fn.p
16 Kim, G. N., "Collecting Pigs and Purificating and Discharging Apparatus of Polluted Washing Water," Korean Patent No. 10-0737731 (2007).
17 http://www.pipelining.co.kr/board/ezboard.exe?db=INFO& action=read&dbf=28&page=0&depth=1
18 The office of Waterworks Seoul Metropolitan Government, 5-years Plan for Vision Accomplishment of Waterwoks Vision, 2007.
19 Yeom, C. M., Cho, Y. S., Kim, K. N., Kim, J. K., and Kim, S. D. "Techniques for Cleaning and Regeneration of Indoor Supply Pipe," J. Korean Soc. Water Wastewater, 18(4), 411-417(2004).
20 Ministry of Environment , 2009 White Paper of Environment, 2009.
21 http://www.yonhapmidas.com/05_01/eco/04_006.html