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Comparative Study of Different Activated Slags on Phosphate Removal

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8 Author(s)
Guangwei Wang ; Sch. of Civil Eng. & Archit., Univ. of Jinan, Jinan, China ; Liping Qiu ; Yanbo Li ; Chunhui Guo
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A comparative study on phosphate removal between activated steel slag and blast furnace slag was investigated. The efficiency of different slags before and after activated for phosphate removal were also evaluated. The results show that the slags activated by hydrothermal treatment are more efficient than raw slags in phosphate removal. The activated slags could be reused for several times and the phosphate removal efficiency could be guaranteed by increasing there action time towards to different reused times. Compared with activated pulverized slags, the activated granular slags could be reused for a longer time for a given initial phosphate concentration. The results suggest that the activated granular slags may be effective materials for phosphate removal. The phosphate removal by activated slag was mainly through chemical precipitation.

Published in:

Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on

Date of Conference:

19-20 Feb. 2011