Journal of Industrial Technology (산업기술연구)
- Volume 19
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- Pages.343-350
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- 1999
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
Separation of Humic Acid Using Polysulfone Ultrafiltration Membrane
폴리설폰 UF막에 의한 부식산 분리
Abstract
The separation of humic acid by ultrafiltration was most influenced by pressure difference. when pressure difference increased from latm to 3atm, permeate flux increased from 40% to 60% but rejection rate reduced from 97% to 91% because of adsorption of molecules of humic acid at membrane surface. Since physical adsorption was more dominant than chemical adsorption, adsorption of membrane surface was reduced 50% when slow rate increased at same conditions.