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NTIS 바로가기上下水道學會誌 = Journal of Korean Society of Water and Wastewater, v.29 no.3, 2015년, pp.371 - 380
김두일 (단국대학교 토목환경공학과) , 천수빈 (단국대학교 토목환경공학과) , 현인환 (단국대학교 토목환경공학과)
Particulate matters in a water distribution system are main causes of turbidity and discoloration of tap water. They could be removed by conventional or uni-directional flushing in a water distribution system. The behaviors and required flow velocity of particles are not well known for their flushin...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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재래식 플러싱의 장점은 무엇인가? | , 2002). 제수밸브를 조작하지 않기 때문에 작업이 간단하고, 플러싱 유속이 확보되는 경우에는 소수의 소화전 개방으로 보다 넓은 지역의 관망을 플러싱 할수 있는 장점이 있다. 그러나 재래식 플러싱은, 메인 수도관의 밸브를 차단하지 않은 상태에서 수행하기 때문에, 상수관망에서 유속이 낮아 플러싱에 필요한 유속을 충분히 얻지 못하는 경우도 있다. | |
녹물의 발생원인은 무엇인가? | 4%의 비중을 차지하고 있었다(Lee, 2014). 녹물의 발생원인은 상수관망 안에 존재하는 50 ~ 100 μm 사이즈의 침적된 입자상물질이 관망에서 용출되어 수도꼭지를 통해 나오는 것으로 알려져 있다(Barkatt et al., 2009, Boxall et al. | |
상수관망에서 침적된 갈색의 침전물은 어떻게 구성되어 있는가? | , 2001). Echeverría 등(2009)은 상수관망에서 침적된 갈색의 침전물은 Alumino-silicates 화합물, 석영질(Quartz) 물질 및 유기화합물(휴믹산) 등으로 구성되어 있으며, 흰색의 침전물은 Calcite, 석영질 (Quartz) 물질, Alumino-silicates 화합물, 휴믹산 등으로 구성되어 있음을 FTIR분석을 통해 보였다. |
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Boxall, J. B., Skipworth, P. J., Saul, A. J., (2003), Aggressive flushing for discolouration event mitigation in water distribution networks. Water Sci. and Technol. Water Supply 3(1/2), pp. 179-186.
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Echeverria, F., Castano, J. G., Arroyave, C., Penuela, G., Ramirez, A., Morato, J., , (2009), Characterization of deposits formed in a water distribution system, Ingeniare. Revista chilena de ingenieria, 17(2), pp. 275-281
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Gauthier, V., Rosin, C., Mathieu, L., Portal, J. M., Block, J. C., Chaix, P., Gatel, D., (1996), Characterization of the deposits in drinking water distribution systems., Proceedings of the Water Quality Technology Conference of American Water Works Association
Lee, H., (2014), Current perception for tap water and suggestions to promote its direct consumption., March, Water Journal, http://www.waterjournal.co.kr/news/articleView.html?idxno19295
Jang, M., Biofilm Formation and Microbiologically Induced Corrosion in Water Distribution System., A doctoral dissertation, The university of Seoul, Republic of Korea, Feburary 2009.
Kirmeyer, G. J., Friedman, M., Clement, J., Sandvig, A., Noran, P. F., Martel, K. D., Smith, D., LeChevallier, M., Volk, C., Antoun, E., Hiltebrand, D., Dyksen, J., Cushing, R., (2000), Guidance manual for maintaining distribution system water quality. Report No. 90798, Research Foundation and American Water Works Association, AWWA Denver, USA.
Koizumi, A., (2005), The experimental study about the turbid matter motion in the conduit line, Journal of Japan Water Works Association, 74(11), pp. 2-12.
Koizumi, A., (2005), The research on the interpretation of the flow field related to the turbid matter motion in the water pipeline, Research Conference in the national capital research presentation handbook, 56(5), pp. 368-369
Lindley, T. R., Buchberger, S. G., (2002), Assessing intrusion susceptibility in distribution systems., Journal of American Water Works Association 94(6), pp. 66-79
Markku J. L., Tarja K. N., Ilkka T. M., Pertti J. M., Terttu V., (2004), Removal of soft deposits from the distribution system improves the drinking water quality, Water Research 38, pp. 601-610
Poulin, A., Mailhot A., Periche N., Delorme L., and Villeneuve J.P., (2010), Planning unidirectional flushing operations as a response to drinking water distribution system contamination, Journal of Water Resources Planning and Management, ASCE, Nov./Dec., pp. 647-657
Propato, M. and Uber, J., Vulnerability of Water Distribution Systems to Pathogen Intrusion: How Effective Is a Disinfectant Residual, (2004), Environ. Sci. Technol., 38, pp. 3713-3722
Sadiq, R., Kleinera Y. and Rajania, B., (2006), Estimating risk of contaminant intrusion in water distribution networks using Dempster-Shafer theory of evidence, Civil Engineering and Environmental Systems, Special Issue: Papers selected from the Eighth International Conference on Computing and Control for the Water Industry, 23(3), pp. 129-141
Slaats, P. G. G., Rosenthal, L. P. M., Sieger, W .G., van den Boomen, M., Beuken, R. H. S., Vreeburg, J. H. G., (2002), Processes involved in generation of discoloured water. Report No. KOA 02.058, American Water Works Association Research Foundation/Kiwa, The Netherlands.
Vairavamoorthy, K., Yan, J., Harshal, M. G., Sunil, D., (2007), (2007), A GIS-based risk analysis tool for water distribution systems, Environmental Modelling & Software, 22, pp. 951-965
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Walski, T. M., (1991) Understanding solids transport in water distribution systems. Proceedings Water Quality Modelling in Distribution Systems, AWWA Research Foundation, USA, pp. 305-309.
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