5Reed B E, Vaughan R, Jiang L Q. As (III), As ( V ) ,Hg and Pb Removal by Fe-oxide Impregnated Activated Carbon [ J ]. J. Environ. Eng. , 2000, 126(9) :869 - 873.
6Benjamin M M,Sletten R S ,Bailey R P,et al. Sorption and Filtration of Metals Using Iron-oxide Coated Sand[J]. Water Res, 1996, 30 ( 11 ) : 2609 - 2620.
7Yokota H, Tanabe K, Sezaki M, et al. Arsenic Contamination of Ground and Pond Water and Water Purification System Using Pond Water in Bangladesh [ J ]. Engineering Geology,2001,60 : 323 - 331.
8Mcneill S,Edwards M. Arsenic Removal During Precipitative Softening[J]. J Environ Eng, 1997,123 (5) :453 -460.
9Tokunaga S, Yokoyama S, Wasays A. Removal of Arsenic ( III) and Arsenic ( IV ) Ions from Aqueous Solutions with Lanthanum (III ) Salt and Comparison with Aluminum (III) , Calcium ( II) , and Iron ( III ) Salts [J].Water Environ Res, 1999,71 ( 3 ) : 299 - 306.
10Namasivayam C, Senthilkumar S. Removal of Arsenic( V ) from Aqueous Solution Using Industrial Solid Waste: Adsorption Rates and Equilibrium Studies[J]. Ind Eng Chem Res, 1998,37( 12 ) :4816 - 4822.