Browse > Article
http://dx.doi.org/10.5916/jkosme.2013.37.5.541

A study on characteristics of filters for domestic household water purifier  

Cho, Jae-Ik (Department of Architectural Engineering, Pusan National University)
Kim, Gil-Tae (Land & Housing Institute)
Ahn, Young-Chull (Department of Architectural Engineering, Pusan National University)
Abstract
It is important to establish water treatment technologies for drinking water because Korea belongs to water-stressed country. Leachate from recent incident of foot-and-mouth disease has become an opportunity to be aware of the need to manage water quality. Water purifiers are adopted to four or five steps of filtration process. Each steps are composed of a sediment filter, a pre-carbon filter, an UF or a RO membrane filter and a post-carbon filter. And additionally a ceramic filter can be used as a final stage. In this study, operational conditions in each steps are examined and characteristics of each filters are investigated. SEM analysis is used for filter surface and shape investigation using 6 commercial samples. Pore sizes of the sediment filter, the UF membrane filter, and the RO membrane filter are 30~47 ${\mu}m$, 0.005~0.5 ${\mu}m$, and 0.025~0.25 ${\mu}m$, respectively. Specific surface areas of activated carbons are ranged from 622 to 1,308 $m^2/g$.
Keywords
Water filter; Pressure loss; Membrane; Virus; Activated carbon;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. D. Kim, Evaluation of Optimal Operating Condition for Water Treatment using Microfiltration System, M.S. thesis, The University Seoul, Korea, 2008.
2 Minister of Land, Transport and Maritime Affairs, http://www.mltm.go.kr/USR/policyData/m_34681/dtl.jsp? search = 물&srch_dept_nm=&srch_dept_id=&srch_usr_nm= &srch_usr_titl=Y&srch_usr_ctnt=&search_regdat e_s=&search_regdate_e=&psize=10&s_category =p_sec_3&p_category=&lcmspage=1&id=226, Accessed February 20, 2013.
3 M. Echegaray, Membrane Filtration and Water Desalination, USA: Wexford, 2008.
4 Ministry of Environment, http://www.me.go.kr/ web/286/me/common/board/detail.do?boardId=no tice_02&decorator=me&idx=183061, Accessed February 20, 2013.
5 Korea Water Purifier Industry Cooperative, http://211.47.151.18:8002/comun/archives_view. aspx?tbl=BOARD10&mode=&searchtype=&sear chstr=&idx=2049, Accessed February 20, 2013.
6 ImFact, Status of the Water Industry and Business Prospects, ImFact Publishing Co., Korea, 2011.
7 S. H. Jung, A Study on the Filtration Characteristics of Electro-positively Charged Nano-fiber Filter in Water, M.S. thesis, Department of Mechanical Engineering, Pusan National University, Korea, 2005.