Kabushiki Kaisha Toshiba

Ichiro Yamanashi

Atsushi Yamazaki

Taro Fukaya

Shuji Seki

Kenji Tsutsumi

Hirofumi Noguchi

Yasutaka Kikuchi

Shinji Kobayashi

Michihiko Inaba

Takaaki Murata

Shigeru Kawaguchi

Yasuhiro Ogura

Yuuji Okita

Sueo Ando

According to one embodiment, a copper recovery apparatus includes a precipitation tank, a mixing tank, a filter-aid feeder, a solid-liquid separator includes a filter, a cleaning-water supply line, a cleaning-water discharge line, a separation tank, and a filter-aid return line. The precipitation tank is configured to receive copper ions-containing water to be treated and an alkali to prepare treated water containing a precipitate of copper compound. The solid-liquid separator is configured to allow the treated water to be passed through the filter on which the precoat layer is deposited to separate the precipitate retained on the precoat layer from a filtrate.

Copper recovery apparatus

According to one embodiment, a copper recovery apparatus includes a precipitation tank configured to precipitate copper hydroxide grains in water, a filter aid supplier, a mixing tank configured to mix the filter aid with a water to produce a suspension, a separator provided with a filter, a line configured to supply the suspension to the separator, thereby forming a precoat layer formed of the filter aid on the filter, a separation tank configured to receive the detached matter of the precoat layer discharged together with the detaching water from the separator to magnetically separate copper hydroxide grains and filter aid, a line configure to discharge and recover the detaching water from the separation tank, and a line configured to return the separated filter aid to the filter aid supplier from the separation tank.

Copper recovery apparatus and copper recovery method

According to one embodiment, a fluorine recovering apparatus includes a precipitating device allowing fluoride ion-containing water to react with calcium source to form precipitate, a mixing tank mixing a filter aid including particles of a magnetic material having a diameter of 0.5 to 5 &#x3bc;m with a dispersion medium to produce slurry, a filter aid feeder to the mixing tank, a solid-liquid separator with a filter depositing a filter aid layer, and depositing the precipitate on the filter aid layer, a cleaning mechanism removing the filter aid and the precipitate, a separating tank separating the filter aid and the precipitate, and a returning mechanism returning the filter aid to the filter aid feeder.

Fluorine recovering apparatus and method for recovering fluorine

A pair of electrodes (,) are formed on one surface of a dielectric substrate (,). A dielectric layer (,) is formed on the surface of the dielectric substrate (,) so as to cover the pair of electrodes (,). The pair of electrodes (,) have linear electrode elements, respectively. The respective linear electrode elements are arrange at equal intervals.

Ozonizing unit ozone generator and ozone-processing system

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Tokyo, Japan

Ichiro Yamanashi