Combined Removal of Arsenic(Ⅴ) and Fluoride from Drinking Water by Fe(Ⅲ)-loading Ligand Exchange Cotton Adsorbent

Abstract

Abstract: The concentration effects of combined removal of arsenate and fluoride(F) were studied by novel bead Fe(Ⅲ) loading ligand exchange cotton cellulose adsorbent in batch and column experiments. As(Ⅴ) and F could be simultaneously removed by the adsorbent from drinking water highly and selectively after three adsorption regeneration readsorption cycles. The saturation adsorption capacity of As(Ⅴ) and F reached up to 15 mg/g. Indexes of effluent were in good agreement with the living drinking water health standard of China, especially the arsenic concentrations below 0.01 mg/L and satisfy WHO stringent drinking water standards. It shows that the adsorbent may be a promising adsorbent in the region of arsenic and fluoride coexisting.

Key words: Drinking water, Arsenic(Ⅴ), Fluoride, Combined removal, Fe(Ⅲ)LECCA

CLC Number:

X523

TrendMD:

ZHAO Ya Ping, WANG Jun Feng, CHEN Fu Hua. Combined Removal of Arsenic(Ⅴ) and Fluoride from Drinking Water by Fe(Ⅲ)-loading Ligand Exchange Cotton Adsorbent[J]. Chem. J. Chinese Universities, 2003, 24(4): 643.

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Combined Removal of Arsenic(Ⅴ) and Fluoride from Drinking Water by Fe(Ⅲ)-loading Ligand Exchange Cotton Adsorbent

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