The effects of soluble organic matters on membrane fouling index
This study investigated the effects of soluble organic matters on membrane fouling characteristics, using silt density index (SDI) and modified fouling index (MFI) to evaluate the fouling potential. Experimental results demonstrated that humic acid had significant effects on membrane fouling indexes...
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Published in | Bioresource technology Vol. 100; no. 5; pp. 1875 - 1877 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Kidlington
Elsevier Ltd
01.03.2009
[New York, NY]: Elsevier Ltd Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | This study investigated the effects of soluble organic matters on membrane fouling characteristics, using silt density index (SDI) and modified fouling index (MFI) to evaluate the fouling potential. Experimental results demonstrated that humic acid had significant effects on membrane fouling indexes. When its concentration was in the range of 0.01–0.05
mg/L, the SDI
15 and MFI were 2.9–3.9 and 5.4–13.8
s/L
2, respectively. According to the linear equations of MFI measurements, the fouling potential was in the order of humic acid
>
nucleic acid ≒ protein
>
glucose. Moreover, the molecular weight of dextran played an important role in membrane fouling indexes. Furthermore, a mathematical analysis of filtration experiments based on saturation curve was developed in this study. The maximum accumulated filtrate (
V
max
) and the constant of filtration (
k
f
) could be obtained to improve the precision of membrane fouling prediction. |
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Bibliography: | http://dx.doi.org/10.1016/j.biortech.2008.09.054 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2008.09.054 |