MATERIAL AND METHOD FOR TREATING IRON-CONTAINING ACIDIC WASTE WATER

PROBLEM TO BE SOLVED: To provide a material and a method for treating iron-containing acidic waste water which can efficiently remove hazardous heavy metals, such as iron and arsenic, from the iron-containing acidic waste water. SOLUTION: The iron-containing acidic waste water treating material is m...

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Hauptverfasser:	TAKAGI RYOJI, OISHI TORU
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE VINEGAR WINE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a material and a method for treating iron-containing acidic waste water which can efficiently remove hazardous heavy metals, such as iron and arsenic, from the iron-containing acidic waste water. SOLUTION: The iron-containing acidic waste water treating material is made by carrying iron-oxidizing bacteria on an inorganic material containing at least one of alkaline earth metal and/or alkali metal silicate among mineral fiber, steel slag, and ferronickel slag, and is at least one kind of a product where the iron-oxidizing bacteria is stuck and carried onto the inorganic material, a mixture of the inorganic material and a biomat containing the iron-oxidizing bacteria, and a mixture of the inorganic material and soil containing the iron-oxidizing bacteria. In the iron-containing acidic waste water treating method, the iron-containing acidic waste water in which divalent iron ions are contained is brought into contact with the iron-containing acidic waste water treating material. A part where the iron-containing acidic waste water is treated is sprayed with the waste water treating material, equipped with a packed member in which the waste water treating material is packed, or subjected to waste water treating material spraying application. COPYRIGHT: (C)2004,JPO