活性碳去除消毒副產物生成前質及其生成潛能之模式分析(1/3)
Date Issued
2000-07-31
Date
2000-07-31
Author(s)
DOI
892211E002016
Abstract
Natural organic matters (NOMs) from three
types of source water were fractionated by
ultra-filtration membrane and by DAX-8
resins, to determine the relationship between
molecular weight distribution, dissolved
material matrix, and the precursor of
disinfection by-products. Furthermore, the
capabilities of ozonation, GAC/BAC,
sedimentation, and filtration processes for
reducing the precursors of DBP were also
investigated in this research. The results of
NOM analysis indicate that the hydrophobic
acid and small molecular weight (< 1,000 Da)
fractions possess more DBP precursors. The
sedimentation process can hardly reduce the
small molecular weight fraction. On the other
hand, ozonation coupled with GAC/BAC can
reduce the hydrophobic fraction efficiently,
so that they can control DBP more effectively.
Finally, the semi-empirical formulation
derived from microbial logarithm growth
model and experimental data could
successfully predict the reduction efficiency
of DOC in the GAC/BAC column.
Subjects
natural organic matter
disinfection by-product
molecular weight
distribution
distribution
granular activated carbon
biological activated carbon
Publisher
臺北市：國立臺灣大學環境工程學研究所
Type
report
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