Optimized nanofiltration membranes

Relevance to economic assessment and process performance

A. Wahab Mohammad, Nora'aini Ali, A. L. Ahmad, Nidal Hilal

    Research output: Contribution to journalArticle

    Abstract

    In this paper, the implications of the so-called optimized NF membrane properties on the economic assessment as well as the process performance of NF membrane system will be discussed. The predictive model for NF membranes such as the Donnan-steric-pore model has been used in conjunction with an economic assessment model such as the Verbenne cost model to study the impact of various NF membrane parameters on the capital and operating cost of NF membrane system. The parameters studied include the membrane characteristics such as pore size, charge density, effective thickness and the system characteristics such as applied pressure and concentrations. The optimal conditions for minimum operation cost and optimal operating pressure were then determined. Detailed cost analysis reveals both capital and operating cost were not affected by the variation of charge density. However the charge density will significantly affect the rejection of the membranes. On the other hand, decreasing the membrane pore size will increase costs. It was found that up to 30% of the capital and operating cost in recovering sodium sulphate solution can be saved by using looser membrane compared to the tight membrane structure. Some efforts to experimentally produce NF membranes with optimum properties will be briefly illustrated.

    Original languageEnglish (US)
    Pages (from-to)243-250
    Number of pages8
    JournalDesalination
    Volume165
    Issue numberSUPPL.
    DOIs
    StatePublished - Aug 15 2004

    Fingerprint

    Nanofiltration membranes
    membrane
    Membranes
    Economics
    economics
    Charge density
    Operating costs
    cost
    Pore size
    Costs
    Membrane structures
    Sodium sulfate
    cost analysis
    sodium

    Keywords

    • Nanofltration
    • Optimized
    • Properties
    • System cost

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Science(all)
    • Water Science and Technology
    • Mechanical Engineering

    Cite this

    Optimized nanofiltration membranes : Relevance to economic assessment and process performance. / Mohammad, A. Wahab; Ali, Nora'aini; Ahmad, A. L.; Hilal, Nidal.

    In: Desalination, Vol. 165, No. SUPPL., 15.08.2004, p. 243-250.

    Research output: Contribution to journalArticle

    Mohammad, A. Wahab ; Ali, Nora'aini ; Ahmad, A. L. ; Hilal, Nidal. / Optimized nanofiltration membranes : Relevance to economic assessment and process performance. In: Desalination. 2004 ; Vol. 165, No. SUPPL. pp. 243-250.
    @article{92c8393ab6dc49078253f2c2b12d35ad,
    title = "Optimized nanofiltration membranes: Relevance to economic assessment and process performance",
    abstract = "In this paper, the implications of the so-called optimized NF membrane properties on the economic assessment as well as the process performance of NF membrane system will be discussed. The predictive model for NF membranes such as the Donnan-steric-pore model has been used in conjunction with an economic assessment model such as the Verbenne cost model to study the impact of various NF membrane parameters on the capital and operating cost of NF membrane system. The parameters studied include the membrane characteristics such as pore size, charge density, effective thickness and the system characteristics such as applied pressure and concentrations. The optimal conditions for minimum operation cost and optimal operating pressure were then determined. Detailed cost analysis reveals both capital and operating cost were not affected by the variation of charge density. However the charge density will significantly affect the rejection of the membranes. On the other hand, decreasing the membrane pore size will increase costs. It was found that up to 30{\%} of the capital and operating cost in recovering sodium sulphate solution can be saved by using looser membrane compared to the tight membrane structure. Some efforts to experimentally produce NF membranes with optimum properties will be briefly illustrated.",
    keywords = "Nanofltration, Optimized, Properties, System cost",
    author = "Mohammad, {A. Wahab} and Nora'aini Ali and Ahmad, {A. L.} and Nidal Hilal",
    year = "2004",
    month = "8",
    day = "15",
    doi = "10.1016/j.desal.2004.06.028",
    language = "English (US)",
    volume = "165",
    pages = "243--250",
    journal = "Desalination",
    issn = "0011-9164",
    publisher = "Elsevier",
    number = "SUPPL.",

    }

    TY - JOUR

    T1 - Optimized nanofiltration membranes

    T2 - Relevance to economic assessment and process performance

    AU - Mohammad, A. Wahab

    AU - Ali, Nora'aini

    AU - Ahmad, A. L.

    AU - Hilal, Nidal

    PY - 2004/8/15

    Y1 - 2004/8/15

    N2 - In this paper, the implications of the so-called optimized NF membrane properties on the economic assessment as well as the process performance of NF membrane system will be discussed. The predictive model for NF membranes such as the Donnan-steric-pore model has been used in conjunction with an economic assessment model such as the Verbenne cost model to study the impact of various NF membrane parameters on the capital and operating cost of NF membrane system. The parameters studied include the membrane characteristics such as pore size, charge density, effective thickness and the system characteristics such as applied pressure and concentrations. The optimal conditions for minimum operation cost and optimal operating pressure were then determined. Detailed cost analysis reveals both capital and operating cost were not affected by the variation of charge density. However the charge density will significantly affect the rejection of the membranes. On the other hand, decreasing the membrane pore size will increase costs. It was found that up to 30% of the capital and operating cost in recovering sodium sulphate solution can be saved by using looser membrane compared to the tight membrane structure. Some efforts to experimentally produce NF membranes with optimum properties will be briefly illustrated.

    AB - In this paper, the implications of the so-called optimized NF membrane properties on the economic assessment as well as the process performance of NF membrane system will be discussed. The predictive model for NF membranes such as the Donnan-steric-pore model has been used in conjunction with an economic assessment model such as the Verbenne cost model to study the impact of various NF membrane parameters on the capital and operating cost of NF membrane system. The parameters studied include the membrane characteristics such as pore size, charge density, effective thickness and the system characteristics such as applied pressure and concentrations. The optimal conditions for minimum operation cost and optimal operating pressure were then determined. Detailed cost analysis reveals both capital and operating cost were not affected by the variation of charge density. However the charge density will significantly affect the rejection of the membranes. On the other hand, decreasing the membrane pore size will increase costs. It was found that up to 30% of the capital and operating cost in recovering sodium sulphate solution can be saved by using looser membrane compared to the tight membrane structure. Some efforts to experimentally produce NF membranes with optimum properties will be briefly illustrated.

    KW - Nanofltration

    KW - Optimized

    KW - Properties

    KW - System cost

    UR - http://www.scopus.com/inward/record.url?scp=8644254360&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=8644254360&partnerID=8YFLogxK

    U2 - 10.1016/j.desal.2004.06.028

    DO - 10.1016/j.desal.2004.06.028

    M3 - Article

    VL - 165

    SP - 243

    EP - 250

    JO - Desalination

    JF - Desalination

    SN - 0011-9164

    IS - SUPPL.

    ER -