電膠羽浮除法去除水中氟離子之研究(II)

Electrocoagulation and calcium
preci-pitation are combined to treat high
fluoride containing wastewater. Results
indicate that the sum of the molar ratio of
hydroxide to aluminum and the molar ratio of
fluoride to aluminum (γOH+F) governs the
defluoridation with aluminum salts. In
electric kinetic experiment, the results
indicate γOH+F can also be used as the key
parameter and sulfate or other multi-valence
anions influenced the system most because
they rise the anodic over-potential. A
variable order kinetic model can be used to
simulate the defluori-dation in EC. The
flotation of SS in EC is successful with
adding appreciate amounts of SDS.