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A Study on Using NF and RO Membranes on Drinking Water Treatment(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2003年01期
Page:
93-97
Research Field:
Publishing date:

Info

Title:
A Study on Using NF and RO Membranes on Drinking Water Treatment
Author(s):
LiShaofeng LiuWei ① HuangJunli ②
Department of Architecture Engineering, Shenzhen Polytechnic Institute,Shenzhen 510085)
Keywords:
membrane organic substances inorganic ion biological stability
PACS:
TU991.25
DOI:
-
Abstract:
Using Act ivated Carbon process and Membrane technology together, Permang anate Index w as cut of f to below 0. 5 mg/ L, A 254 w as low ered to 0. 01 below , the TOC of the eff luent w as about 700 μg/ L. 70 % of the conductance ratio, TDS and total alkalinity was removed by the NF and RO. 90 % of the total hardness w as removed. 90 % of the d-i valence and 70 % of the mono-valence ion w ere removed. More recovery rat io, more removal rat io. T he removal ability of the ESPA2 RO membrane is better than that of the ESNA1 NF membrane. The AOC of the ef fluent of the tw o kinds of membrane w as 60 and 47 μg/ L, w hich suggested that the biological stability is fairly good.

References:

1 Kooij Van der, Hijnen W A M. Determining the co ncentration of easily assimilable organic carbon in dringking water[ J] . J AWWA, 1982, 74( 10) : 540~ 545.
2 罗敏, 侯立安, 王占生. 纳滤膜对有机物的截留机理研究[ J] .环境科学学报, 2000, 20( 5) : 523~ 527.
3 Lechevallier M W, Babcock T M. Development of a rapid assimilable organic carbon method for water[ J] . Appl Envir Microbiol, 1993, 59( 5) : 1 714~ 1 724.

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Last Update: 2013-03-17