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NOM의 오존처리에 따른 분자크기분포변화가 활성탄 흡착에 미치는 영향Molecular size distribution of NOM after ozonation and its effect on adsorption with activated carbon
- Other Titles
- Molecular size distribution of NOM after ozonation and its effect on adsorption with activated carbon
- Issue Date
- Dec-2013
- Publisher
- 대한상하수도학회
- Keywords
- 오존산화; 분자량분획; 자연유기물질; 흡착등온식; RSSCT; Ozonation; molecular size distribution; NOM; isotherm; RSSCT
- Citation
- 상하수도학회지, v.27, no.6, pp.805 - 813
- Journal Title
- 상하수도학회지
- Volume
- 27
- Number
- 6
- Start Page
- 805
- End Page
- 813
- ISSN
- 1225-7672
- Abstract
- In this study, molecular size distribution of natural organic matter (NOM) after ozonation was measured and its effect on adsorption capacity of activated carbon was investigated. According to the results, the molecular size of NOM was limitedly changed. Specifically, the molecular size of NOM between 5,000 to 10,000 Da were slightly decreased with increasing ozone doses. The adsorption capacity after ozonation was evaluated using Freundlich isotherm with ideal adsorbed solution theory (IAST) which simulated the multi components adsorption. Further, mini-column test was conducted. The Freundlich constant, K was reduced after ozonation and the non-adsorbable fraction was increased with ozonation. However, no correlation between K and ozone doses was found. The present study also agreed with the correlation between adsorption capacity and pore size characteristics of activated carbon.
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Related Researcher
- HONG, SEONG HO
- College of Engineering (Department of Chemical)