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Cho, Jaeweon
OWIELAB(Organic-Water Interface Engineering Laboratory)
Research Interests
  • Convergence of Science and Arts, Feces Standard Money (FSM), Water & Energy

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Predictive models and factors affecting natural organic matter (NOM) rejection and flux decline in ultrafiltration (UF) membranes

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Title
Predictive models and factors affecting natural organic matter (NOM) rejection and flux decline in ultrafiltration (UF) membranes
Author
Cho, JWAmy, GaryYoon, YeominSohn, Jinsik
Keywords
natural organic matter (NOM); flux decline; ultrafiltration; adsorption resistance; adsorption fluxdecline; model
Issue Date
2002-03
Publisher
ELSEVIER SCIENCE BV
Citation
DESALINATION, v.142, no.3, pp.245 - 255
Abstract
Prediction equations for NOM rejection were formulated using parameters, including specific UV absorbance [SUVA = UV absorbance at 254 nm/dissolved organic matter (DOC)] and a f/k ratio [a ratio of water permeability (f) to the mass transfer coefficient (k)], which have been found to influence aspects of NOM and operating conditions, respectively. Attempts were made to formulate relationships between adsorption resistance (R-a) and interfacial membrane concentration (C-m), and specifically between the amount of NOM absorbed (mg C/cm(2)) and the R-a. Flux decline was also formulated in two ways: (1) by the (so-called) empirical flux-decline equation with three flux-decline coefficients, and (2) by the adsorption flux-decline model with two NOM adsorption terms between bulk, the NOM and the membrane surface and an existing NOM adsorption layer
URI
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DOI
10.1016/S0011-9164(02)00206-0
ISSN
0011-9164
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UEE_Journal Papers
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