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DEVELOPMENT OF ADSORBENT-INSOLUBILIZER FOR ARSENIC AND HEAVY METALS USING NATURAL ZEOLITE AS MAIN RAW MATERIAL, AND CONTAMINATED-SOIL REFORMING METHOD
DEVELOPMENT OF ADSORBENT-INSOLUBILIZER FOR ARSENIC AND HEAVY METALS USING NATURAL ZEOLITE AS MAIN RAW MATERIAL, AND CONTAMINATED-SOIL REFORMING METHOD
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机译：以天然沸石为主要原料的砷和重金属吸附剂-增溶剂的开发及污染土壤的重整方法
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摘要
PROBLEM TO BE SOLVED: To develop an arsenic adsorbent exhibiting a high adsorption ability especially to both ions of As(III) and As (V) and in a wide pH range of from pH 3 to pH 11 to both the ions, and simultaneously to provide a treating agent which can adsorb and insolubilize other heavy metals, in order to meet requirements for an inexpensive and highly efficient adsorbent immobilizing the eluting arsenic to solve such a problem as treatment of the natural originated arsenic contained tunnel waste.;SOLUTION: A powder- or particle-shaped heavy metal adsorption agent is manufactured by mixing the natural zeolite with a high cation exchange capacity into a liquefied heavy metal adsorbent produced by adding a neutralizing agent containing an iron salt or an aluminum salt to a calcium-magnesium compound produced at an iron-works, and the contaminated soil is reformed by using this treating agent.;COPYRIGHT: (C)2011,JPO&INPIT
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