NEW MATERIAL, PURIFICATION METHOD, METHOD FOR PRODUCING LAYERED DOUBLE HYDROXIDE, COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME, ADSORBENT, PURIFICATION FACILITY, AND METHOD FOR PURIFYING CONTAMINATED WATER

PROBLEM TO BE SOLVED: To enable a high-level purification by exhibiting a high-level adsorption ability to heavy metals contained in a contaminant or contaminated water without performing treatment such as a pretreatment for removing CO32-between the layers of a layered double hydroxide. SOLUTION: A...

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Bibliographische Detailangaben
Hauptverfasser:	IKEDA HODAKA, ITO KENICHI, SATO TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DISPOSAL OF SOLID WASTE DYES INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To enable a high-level purification by exhibiting a high-level adsorption ability to heavy metals contained in a contaminant or contaminated water without performing treatment such as a pretreatment for removing CO32-between the layers of a layered double hydroxide. SOLUTION: A new material produces soluble divalent and trivalent cations when it is brought into contact with a component in water and spontaneously produces a layered double hydroxide [M2+(1-x)M3+x(OH)2]x+[An-x/n-yH2O]x-(M: cation, A: anion) in a pH range of 6-12.5. The divalent cation is preferably magnesium, manganese, calcium, nickel, cobalt, copper, zinc, or iron, or a combination thereof. The trivalent cation is preferably aluminum, manganese, iron, or cobalt, or a combination thereof. COPYRIGHT: (C)2009,JPO&INPIT