METHOD FOR TREATING MINE WASTE WATER OR PENETRATION WATER

PROBLEM TO BE SOLVED: To provide an effective method for recovering copper, zinc and iron as metals or their compounds from acidic mine waste water.SOLUTION: Provided is a method for treating acidic mine waste water where acidic mine waste water at least comprising copper ions, iron ions and zinc io...

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Bibliographische Detailangaben
Hauptverfasser:	HARASAWA ISAMU, KASHIWAGI TAKAYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an effective method for recovering copper, zinc and iron as metals or their compounds from acidic mine waste water.SOLUTION: Provided is a method for treating acidic mine waste water where acidic mine waste water at least comprising copper ions, iron ions and zinc ions is subjected to reduction treatment in the presence of a reducing agent, copper, iron and zinc are precipitated-recovered as metals or their compounds. 【課題】酸性坑廃水から、銅、亜鉛および鉄を金属もしくはその化合物として回収する効果的な方法を提供すること。【解決手段】銅イオン、鉄イオンおよび亜鉛イオンを少なくとも含有する酸性坑廃水を、還元剤の存在下で還元処理し、銅、鉄、亜鉛を金属もしくはその化合物として析出・回収することを特徴とする酸性坑廃水の処理方法。【選択図】なし