Abstract
The removal of humic acids (HA) using ceramic tubular microfiltration membrane operated under various conditions including trans-membrane pressures, cross flow velocities, humic acids concentrations in the presence of different heavy metals, and high NaCl content (10000-35000 mg/L) has been investigated. It was found that HA retention increases sharply in the presence of heavy metals ions and at high salinity levels, while trans-membrane pressure has little effect on HA retention. It was also found that the effect of solution environmental on HA retention should reflect alterations in solute charge and in an extent of aggregation HA macromolecules. The fouling by HA was found to be a critical factor in microfiltration with ceramic membrane. Fouling was more severe at high concentrations of NaCl and heavy metals in the feed due to the tighter packing of the HA aggregates in the fouling layer formed on the membrane surface. These results provide an important insight into ceramic membrane fouling with HA at high salinity conditions relevant to the treatment of brackish and seawater.
| Original language | English |
|---|---|
| Pages (from-to) | 564-570 |
| Number of pages | 7 |
| Journal | Separation Science and Technology (Philadelphia) |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jan 2013 |
| Externally published | Yes |
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Keywords
- ceramic membranes
- fouling
- humic acid
- microfiltration
- salinity
ASJC Scopus subject areas
- Chemistry(all)
- Process Chemistry and Technology
- Chemical Engineering(all)
- Filtration and Separation
Cite this
Effect of Hydrodynamic Operations, Salinity, and Heavy Metals on HA Removal by Microfiltration Ceramic Tubular Membrane. / Hakami, M. W.; Tizaoui, C.; Kochkodan, Viktor; Hilal, N.
In: Separation Science and Technology (Philadelphia), Vol. 48, No. 4, 01.2013, p. 564-570.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of Hydrodynamic Operations, Salinity, and Heavy Metals on HA Removal by Microfiltration Ceramic Tubular Membrane
AU - Hakami, M. W.
AU - Tizaoui, C.
AU - Kochkodan, Viktor
AU - Hilal, N.
PY - 2013/1
Y1 - 2013/1
N2 - The removal of humic acids (HA) using ceramic tubular microfiltration membrane operated under various conditions including trans-membrane pressures, cross flow velocities, humic acids concentrations in the presence of different heavy metals, and high NaCl content (10000-35000 mg/L) has been investigated. It was found that HA retention increases sharply in the presence of heavy metals ions and at high salinity levels, while trans-membrane pressure has little effect on HA retention. It was also found that the effect of solution environmental on HA retention should reflect alterations in solute charge and in an extent of aggregation HA macromolecules. The fouling by HA was found to be a critical factor in microfiltration with ceramic membrane. Fouling was more severe at high concentrations of NaCl and heavy metals in the feed due to the tighter packing of the HA aggregates in the fouling layer formed on the membrane surface. These results provide an important insight into ceramic membrane fouling with HA at high salinity conditions relevant to the treatment of brackish and seawater.
AB - The removal of humic acids (HA) using ceramic tubular microfiltration membrane operated under various conditions including trans-membrane pressures, cross flow velocities, humic acids concentrations in the presence of different heavy metals, and high NaCl content (10000-35000 mg/L) has been investigated. It was found that HA retention increases sharply in the presence of heavy metals ions and at high salinity levels, while trans-membrane pressure has little effect on HA retention. It was also found that the effect of solution environmental on HA retention should reflect alterations in solute charge and in an extent of aggregation HA macromolecules. The fouling by HA was found to be a critical factor in microfiltration with ceramic membrane. Fouling was more severe at high concentrations of NaCl and heavy metals in the feed due to the tighter packing of the HA aggregates in the fouling layer formed on the membrane surface. These results provide an important insight into ceramic membrane fouling with HA at high salinity conditions relevant to the treatment of brackish and seawater.
KW - ceramic membranes
KW - fouling
KW - humic acid
KW - microfiltration
KW - salinity
UR - http://www.scopus.com/inward/record.url?scp=84873691469&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873691469&partnerID=8YFLogxK
U2 - 10.1080/01496395.2012.710701
DO - 10.1080/01496395.2012.710701
M3 - Article
AN - SCOPUS:84873691469
VL - 48
SP - 564
EP - 570
JO - Separation Science and Technology (Philadelphia)
JF - Separation Science and Technology (Philadelphia)
SN - 0149-6395
IS - 4
ER -