Title :
Removal of High Fluoride from Drinking Water Treated by New Type Fly Ash Filter Material
Author :
Xue, Jinfeng ; Ma, Yantao
Author_Institution :
Dept. of water quality Eng., Wuhan Univ. Wuhan, Wuhan, China
Abstract :
In this paper, we studied the removal of high fluoride from drinking water treated by two new fly ash filter materials A and S. The results showed that both filter materials can be used for adsorbing fluoride, the adsorption type is Freundlich, a multi-adsorption with medium coverage; the required mass of adsorbents for an aqueous solution of 1 m3 with 4 mg/L concentration of fluoride are 2.46 kg and 2.97 kg respectively. Load two filter materials into glass column for dynamic filtering simulation test and to filter high-fluoride drinking water, the result showed that the pH of filtrated water increased and turbidity decreased; through the research on the concentration and temperature of influent and such influencing factors, the results indicated that the quantity of filtrated water reduces and efficiency of defluoridation increases with the increase of fluoride concentration of influent; both the quantity of filtrated water and efficiency of defluoridation increase with increase of temperature.
Keywords :
adsorption; filtration; fly ash; turbidity; water treatment; adsorbents; aqueous solution; defluoridation; drinking water; dynamic filtering simulation test; filter materials; filtration; fly ash; high fluoride removal; influent concentration; influent temperature; multi-adsorption; turbidity; water treatment; Electrodes; Equations; Filtering; Filters; Fly ash; Glass; Instruments; Power engineering and energy; Temperature; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163308
