電膠羽浮除法去除水中氟離子之研究
Date Issued
2002-07-31
Date
2002-07-31
Author(s)
DOI
902211E002043
Abstract
Electrocoagulation and calcium
preci-pitation are combined to treat high
fluoride containing wastewater. Results
indicate that the rate of fluoride removal in
coprecipitation system was better than that in
adsorption system when the total aluminum
concentration was less than 3mM in batch
experiment. A new parameter, the molar ratio
of aluminum and the sum of fluoride and
alkalinity (OH+F), is the key parameter of the
fluoride removal effecicency. In electric
kinetic experiment, the results indicate OH+F
can also be used as the key parameter and
sulfate affected the system most. The rate of
fluoride removal is only controlled by current
when fluoride is the dominating anion in
system. The rate is also affected by current
when fluoride is not the dominating anion in
system.
Subjects
electrocoagulation
calcium
precipitation
precipitation
fluoride
Publisher
臺北市：國立臺灣大學環境工程學研究所
Type
report
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