首页> 外国专利> Insolubilization of arsenic contaminated soil using the same, and arsenic adsorbent

Insolubilization of arsenic contaminated soil using the same, and arsenic adsorbent

机译:使用同样的溶液将砷污染的土壤增溶,并吸收砷

摘要

Big adsorption over a wide pH range for both ion As As (III) and (V) in the adsorbent alone and shows a high adsorption capacity for both ion [challenge] As As (III) and (V) insolubilization of arsenic-contaminated soil using the same and arsenic adsorption agents can be used alone and indicates the ability situ insolubilization of contaminated soil, there is provided the use of arsenic adsorption agent and treatment method of heavy metal contaminated water thing. Includes at least the iron-aluminum double hydroxide, for arsenic contaminated soil or arsenic contaminated water in the range of pH3~11, arsenic adsorbent of the present invention comprises, As per unit weight of As (V) and and is characterized by adsorption of (III) is high, the variation rate of As per unit weight of (V) adsorption of 10% or less and is used as a slurry or powder. Insolubilization of arsenic-contaminated soil is characterized with respect to arsenic-contaminated soil, and was added in an amount of ~2.0wt% 0.7wt%, arsenic adsorbent powder, and insoluble arsenic by mixing . None [Selection Figure]
机译:仅在单独的吸附剂中,As As(III)和(V)的离子在宽pH范围内就具有很大的吸附能力,并且对As(III)和(V)的离子[挑战] As污染的砷污染土壤均具有高吸附能力使用与砷相同的吸附剂可以单独使用并表明被污染土壤原位不溶的能力,提供了砷吸附剂的使用和重金属污染水物的处理方法。本发明的砷吸附剂至少包含pH 3〜11范围内的砷污染土壤或砷污染水的铁-铝双氢氧化物,其特征在于,As的吸附量为每单位重量As(V),其特征在于吸附(III)高时,(V)吸附的每单位重量的As的变化率在10%以下,用作浆料或粉末。相对于砷污染的土壤,特征在于砷污染的土壤的不溶性,并且通过混合将其添加至约2.0wt%0.7wt%的量,砷吸附剂粉末和不溶性砷。无[选择图]

著录项

  • 公开/公告号JPWO2008126691A1

    专利类型

  • 公开/公告日2010-07-22

    原文格式PDF

  • 申请/专利权人 株式会社アステック;

    申请/专利号JP20090509169

  • 申请日2008-03-27

  • 分类号B01J20/08;B09C1/02;B09C1/08;C02F1/28;C09K17/08;C09K17/02;

  • 国家 JP

  • 入库时间 2022-08-21 18:57:49

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