A low pressure ultrafiltration membrane system for potable water supply to developing communities in South Africa

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dc.contributor.authorPryor M.J.
dc.contributor.authorJacobs E.P.
dc.contributor.authorBotes J.P.
dc.contributor.authorPillay V.L.
dc.date.accessioned2011-05-15T15:59:08Z
dc.date.available2011-05-15T15:59:08Z
dc.date.issued1998
dc.description.abstractThree pilot studies were performed in different areas of South Africa, demonstrating that particulate and colloidal turbidity can be reduced to acceptable levels. By operating at a static manifold pressure of between 100 and 140 kPa and a constant flux of 30-40 l/m2.h, up to 85% removal of NOM and >90% reduction in colour was observed. No microbiological indicator organisms were detected in any of the permeate samples analyzed. During the operation of the membranes for more than 3 yrs, a loss of only 5% of membrane area was experienced, and a membrane life of <5 yrs can therefore be expected. The use of polysulphone ultrafiltration capillary membranes at a low operating pressured is able to remove natural organic matter, reduce organic colour (humic and fulvic susbtances) and partially disinfect the water. Ultrafiltration provides a simple and effective means for the production of potable water for small communities.Three pilot studies were performed in different areas of South Africa, demonstrating that particulate and colloidal turbidity can be reduced to acceptable levels. By operating at a static manifold pressure of between 100 and 140 kPa and a constant flux of 30-40 l/m2.h, up to 85% removal of NOM and >90% reduction in colour was observed. No microbiological indicator organisms were detected in any of the permeate samples analyzed. During the operation of the membranes for more than 3 years, a loss of only 5% of membrane area was experienced, and a membrane life of >5 years can therefore be expected. The use of polysulphone ultrafiltration capillary membranes at a low operating pressure is able to remove natural organic matter, reduce organic colour (humic and fulvic substances) and partially disinfect the water. Ultrafiltration provides a simple and effective means for the production of potable water for small communities.
dc.description.versionArticle
dc.identifier.citationDesalination
dc.identifier.citation119
dc.identifier.citation03-Jan
dc.identifier.issn119164
dc.identifier.other10.1016/S0011-9164(98)00126-X
dc.identifier.urihttp://hdl.handle.net/10019.1/11020
dc.subjectChemicals removal (water treatment)
dc.subjectColor removal (water treatment)
dc.subjectDisinfection
dc.subjectPolymeric membranes
dc.subjectPolysulfones
dc.subjectPotable water
dc.subjectTurbidity
dc.subjectUltrafiltration
dc.subjectLow pressure ultrafiltration membrane system
dc.subjectWater filtration
dc.subjectdrinking water
dc.subjectmembrane
dc.subjectultrafiltration
dc.titleA low pressure ultrafiltration membrane system for potable water supply to developing communities in South Africa
dc.typeArticle
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