METAL RECOVERY SYSTEM AND METAL RECOVERY METHOD

A metal recovery system includes: a desalination apparatus obtaining freshwater with a reverse osmosis membrane from liquid to be processed pressurized by a pump; a metal recovery apparatus recovering metal ions from first drainage from the desalination apparatus, using a metal ion exchange membrane...

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Bibliographische Detailangaben
Hauptverfasser:	Tsuchiyama, Takahiro, Toya, Kenichi, Kurashina, Daisuke, Fujiki, Kenji
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	A metal recovery system includes: a desalination apparatus obtaining freshwater with a reverse osmosis membrane from liquid to be processed pressurized by a pump; a metal recovery apparatus recovering metal ions from first drainage from the desalination apparatus, using a metal ion exchange membrane; and a control apparatus that includes: a pump control unit controlling energization of the pump so that an inflow flow rate of the liquid to be processed flowing into the desalination apparatus is a predetermined first flow rate when an exchange membrane temperature is within a temperature range determined in advance; and an exchange membrane control unit controlling energization of electrodes applying an electric field to a metal ion exchange membrane based on a first ion concentration that is a concentration of the metal ions in the first drainage when the exchange membrane temperature is within a temperature range determined in advance.