The invention relates to the application of water treatment and particularly relates to an arsenic removal absorbent-iron and copper composite oxide which is provided with a larger specific surface area and has a better absorptive property and a preparation method of the iron and copper composite oxide. The arsenic removal absorbent is soluble iron salt and copper salt which are regulated to be at the potential hydrogen (pH) value of 6-12, the regulated iron salt and the copper salt are dried after neutralization, and the molar ratio between the soluble iron salt and the copper salt is 10 : 1-1 : 2. The iron and copper composite oxide is provided with the larger specific surface area has the better absorptive property and can be used for removing arsenic contaminants in various water bodies such as ground water and surface water. In addition, the arsenic removal absorbent also can be used for removing contaminants in water such as chromium and phosphate.
; 任宗明; 李国亮; 陈静
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