[환경] 부식질의 광산화 및 오존산화에 있어서의 분자량 크기분포 변화 특성에 관한 연구

In this study, the photooxidation and ozonation of humic acid (HA) in aqueous solution were conducted and the treated HA samples at different reaction time were analyzed using ultrafiltration techniques to evaluate the change of their molecular size distributions with its DOC removal. Molecular size distribution of untreated HA showed 41.5% in higher molecular size fractions (>30,000 daltons) and 15.2% in much smaller molecular size fraction (30,000 daltons into much smaller molecules was increased. In UV system, the HA molecules of the fraction of