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ACTIVATED ALUMINA FOR ADSORBING ARSENATE ION AND ADSORPTION TREATMENT OF ARSENATE ION FROM AQUEOUS SOLUTION BY USING THE SAME
ACTIVATED ALUMINA FOR ADSORBING ARSENATE ION AND ADSORPTION TREATMENT OF ARSENATE ION FROM AQUEOUS SOLUTION BY USING THE SAME
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机译：活性氧化铝吸附砷离子的吸附处理水溶液中砷离子的吸附处理。
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摘要
PROBLEM TO BE SOLVED: To provide adsorption material of arsenate ions by which arsenate ions are adsorbed and removed from water to low concentration of ≤0.01 ml/1 in terms of arsenic by continuously treating a large amount of water containing the arsenate ions by an inexpensive and simple method. ;SOLUTION: In the case of using an adsorbent to remove arsenate ions from liquid containing arsenic acid, activated alumina for adsorbing the arsenate ions, in which content of Na2O is ≤0.3 wt.%, wear rate is ≤5%, sphere conversion external specific surface area calculated from sieving particle size is 4-20 m2/l, BET specific surface area is ≥100 m2/g, pore volume of 0.2-10 μm pore radius measured by a mercury press-fitting method is ≥0.04 cc/g and pore volume of 0.2-1 μm pore radius is ≥0.02 cc/g, is used as the adsorbent.;COPYRIGHT: (C)1999,JPO
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