Application of ultrafiltration hybrid membrane processes for reuse of secondary effluent

This study evaluates the factors affecting pretreatment conditions for hybrid UF membrane processes for reuse of secondary effluent from the sewage treatment plant. The experimental results obtained from the ultrafiltration (UF) membrane process showed that the particles of the size range between 0....

Full description

Saved in:
Bibliographic Details
Published in:Desalination 2007-01, Vol.202 (1), p.239-246
Main Authors: Lee, C.W., Bae, S.D., Han, S.W., Kang, L.S.
Format: Article
Language:English
Subjects:
Adsorption
Applied sciences
Chemical engineering
Coagulation
Direct filtration
Exact sciences and technology
General purification processes
Membrane separation (reverse osmosis, dialysis...)
PAC
Pollution
Reuse
Secondary effluent
Sewerage works: sewers, sewage treatment plants, outfalls
UF membrane
Wastewaters
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study evaluates the factors affecting pretreatment conditions for hybrid UF membrane processes for reuse of secondary effluent from the sewage treatment plant. The experimental results obtained from the ultrafiltration (UF) membrane process showed that the particles of the size range between 0.2 and 1.2 μm caused a significant impact on membrane fouling in all cases even with or without the coagulation process. As pretreatment of UF membrane process, the coagulation significantly improved the permeate flux. Optimal flux improvement was seen at an alum dose of 50 mg/L. In addition, it was found that the permeate flux was least declined under the coagulation condition of charge neutralization (pH 5.0). Also, the powdered activated carbon (PAC) adsorption enhanced the permeate flux. Application of the direct filtration as a pretreatment of UF membrane process was also very effective in reducing the UF membrane fouling.
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2005.12.059