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

Jaeweon Cho; Gary Amy; Yeomin Yoon; Jinsik Sohn

doi:10.1016/S0011-9164(02)00206-0

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

Jaeweon Cho, Gary Amy, Yeomin Yoon, Jinsik Sohn

Department of Environmental Science & Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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/cm²) 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.

Original language	English
Pages (from-to)	245-255
Number of pages	11
Journal	Desalination
Volume	142
Issue number	3
DOIs	https://doi.org/10.1016/S0011-9164(02)00206-0
State	Published - 1 Mar 2002

Bibliographical note

Funding Information:
This work was mainly supported by the AWWA Research Foundation (Project Manager: Traci Case), and also supported in part by the Korea Science and Engineering Foundation (KOSEF) through the Advanced Environmental Monitoring Research Center (ADEMRC) at K-JIST.

Keywords

Adsorption flux-decline model
Adsorption resistance
Flux decline
Natural organic matter (NOM)
Ultrafiltration

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10.1016/S0011-9164(02)00206-0

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

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 (Ra) and interfacial membrane concentration (Cm), and specifically between the amount of NOM absorbed (mg C/cm2) and the Ra. 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.",

keywords = "Adsorption flux-decline model, Adsorption resistance, Flux decline, Natural organic matter (NOM), Ultrafiltration",

author = "Jaeweon Cho and Gary Amy and Yeomin Yoon and Jinsik Sohn",

note = "Funding Information: This work was mainly supported by the AWWA Research Foundation (Project Manager: Traci Case), and also supported in part by the Korea Science and Engineering Foundation (KOSEF) through the Advanced Environmental Monitoring Research Center (ADEMRC) at K-JIST.",

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AU - Cho, Jaeweon

AU - Amy, Gary

AU - Yoon, Yeomin

AU - Sohn, Jinsik

N1 - Funding Information: This work was mainly supported by the AWWA Research Foundation (Project Manager: Traci Case), and also supported in part by the Korea Science and Engineering Foundation (KOSEF) through the Advanced Environmental Monitoring Research Center (ADEMRC) at K-JIST.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - 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 (Ra) and interfacial membrane concentration (Cm), and specifically between the amount of NOM absorbed (mg C/cm2) and the Ra. 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.

AB - 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 (Ra) and interfacial membrane concentration (Cm), and specifically between the amount of NOM absorbed (mg C/cm2) and the Ra. 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.

KW - Adsorption flux-decline model

KW - Adsorption resistance

KW - Flux decline

KW - Natural organic matter (NOM)

KW - Ultrafiltration

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DO - 10.1016/S0011-9164(02)00206-0

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JF - Desalination

IS - 3

ER -

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

Abstract

Bibliographical note

Keywords

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