Techno-economical approach of GAC and microfiltration as a coagulant-free pre-treatment of seawater desalination
Membrane filtration is lately becoming a popular process for the pre-treatment of seawater in reverse osmosis (SWRO) desalination. The common practiced method of controlling membrane fouling and reducing the treatment costs usually involves a short coagulation step prior to the membrane filtration....
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| Veröffentlicht in: | Desalination and water treatment 2012-04, Vol.42 (1-3), p.87-93 |
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| container_issue | 1-3 |
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| container_title | Desalination and water treatment |
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| creator | BEERY, Matan JI JUNG LEE BYUNG SOO OH JOON HA KIM REPKE, Jens-Uwe |
| description | Membrane filtration is lately becoming a popular process for the pre-treatment of seawater in reverse osmosis (SWRO) desalination. The common practiced method of controlling membrane fouling and reducing the treatment costs usually involves a short coagulation step prior to the membrane filtration. In this work, a study of the feasibility of a coagulation free microfiltration (MF) as pre-treatment for SWRO desalination from a technical, economical and environmental point of view was performed. The experimental part included filtration of seawater from the Yellow Sea in Korea both with and without granular activated carbon (GAC) pre-treatment using a laboratory scale MF plant and different constant fluxes in outside-in dead-end mode. The results show that a coagulant and GAC free, stand-alone microfi ltration using low fluxes and intense chemical cleanings is technically possible. When compared to a state of the art coagulation-MF, such a process could be economically and environmentally favourable when accounting for the lower energy demand and the relinquishment of the sludge treatment system. |
| doi_str_mv | 10.1080/19443994.2012.683267 |
| format | Article |
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The common practiced method of controlling membrane fouling and reducing the treatment costs usually involves a short coagulation step prior to the membrane filtration. In this work, a study of the feasibility of a coagulation free microfiltration (MF) as pre-treatment for SWRO desalination from a technical, economical and environmental point of view was performed. The experimental part included filtration of seawater from the Yellow Sea in Korea both with and without granular activated carbon (GAC) pre-treatment using a laboratory scale MF plant and different constant fluxes in outside-in dead-end mode. The results show that a coagulant and GAC free, stand-alone microfi ltration using low fluxes and intense chemical cleanings is technically possible. 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The common practiced method of controlling membrane fouling and reducing the treatment costs usually involves a short coagulation step prior to the membrane filtration. In this work, a study of the feasibility of a coagulation free microfiltration (MF) as pre-treatment for SWRO desalination from a technical, economical and environmental point of view was performed. The experimental part included filtration of seawater from the Yellow Sea in Korea both with and without granular activated carbon (GAC) pre-treatment using a laboratory scale MF plant and different constant fluxes in outside-in dead-end mode. The results show that a coagulant and GAC free, stand-alone microfi ltration using low fluxes and intense chemical cleanings is technically possible. 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| ispartof | Desalination and water treatment, 2012-04, Vol.42 (1-3), p.87-93 |
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| subjects | Activated carbon Applied sciences Chemical analysis Coagulants Coagulation Costs Desalination Economics Energy Energy demand Exact sciences and technology Feasibility studies Filtration Fluxes Fouling Marine Membrane filtration Membrane processes Membranes Microfiltration Pollution Pretreatment Reverse osmosis Sea water Seawater Sludge Sludge treatment Water analysis Water desalting Water filtration Water treatment and pollution |
| title | Techno-economical approach of GAC and microfiltration as a coagulant-free pre-treatment of seawater desalination |
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