Kabushiki Kaisha Toshiba

Hideyuki Tsuji

Tatsuoki Kohno

Akiko Suzuki

Shinetsu Fujieda

Nobuyuki Ashikaga

Akiko Saito

Tadahiko Kobayashi

Shinji Murai

Taro Fukaya

Arisa Yamada

Katsuya Yamamoto

Shinya Sakurada

Toshihiro Imada

Kazuhiko Noda

Masahiko Tsutsumi

Shinobu Moniwa

Satomi Ebihara

Satoshi Haraguchi

Satoshi Mikoshiba

Akihiro Kasahara

Akihiko Ono

Takuya Takahashi

Kenji Sano

Katsumi Hisano

Akihiro Koga

Hideo Iwasaki

Shuichi Uchikoga

Yumiko Sekiguchi

Yasunari Maekawa

Tatsuoki Kono

Koji Mizuguchi

Hidetake Shiire

Akihiro Matsui

Shin Hasegawa

Shinichi Sawada

Hidetaki Shiire

An electrochemical reaction device of an embodiment includes: an electrolytic solution tank; a first electrode in the first room; a second electrode in the second room; and a generator. The electrolytic solution tank includes a first room and a second room. The first room is capable of storing a first electrolytic solution containing a first substance including carbon dioxide. The second room is capable of storing a second electrolytic solution containing a second substance. The first electrode reduces the first substance. The second electrode oxidizes the second substance. The generator is electrically connected to the first and second electrodes. The first electrode includes a conductor having a flow path penetrating through the conductor.

Electrochemical reaction device

Magnetic materials, having: a composition represented by a general formula:(RX)(FeM)where, R is at least one of element selected from the group consisting of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y, X is at least one of element selected from the group consisting of Ti, Zr and Hf, M is at least one of element selected from the group consisting of V, Cr, Mn, Ni, Cu, Zn, Nb, Mo, Ta, W, Al, Si, Ga and Ge, x is a value satisfying 4&#x2266;x&#x2266;20 atomic %, y is a value satisfying 0.01&#x2266;y&#x2266;0.9, and a is a value satisfying 0&#x2266;a&#x2266;0.2, wherein the magnetic material includes a ThNicrystal phase or a TbCucrystal phase as a main phase, that are useful for magnetic refrigeration.

Magnetic material for magnetic refrigeration

An iodine adsorbent of an embodiment includes: a carrier modified with a functional group represented by a formula (1); and a silver ion supported on the carrier, where Ris a polyol group.

Iodine adsorbent and column for water treatment using iodine adsorbent

According to one embodiment, a desalination treatment membrane includes a desalting membrane and a base material which is disposed in close contact with the desalting membrane, wherein a solid salt is fixed to the base material by a graft-polymerization.

Desalination treatment membrane

There is provided an efficient treatment method for boron-containing water capable of reducing an amount of use of medical agent and an amount of generation of sludge. A treatment method for boron-containing water of an embodiment includes a first process of concentrating boron-containing water to obtain boron-concentrated liquid. Further, the method includes a second process of making the boron-concentrated liquid to be brought into contact with a layered inorganic hydroxide, and making the layered inorganic hydroxide adsorb boron in the boron-concentrated liquid to remove boron.

Method for treating boron-containing water

According to one embodiment, water to be treated is passed through each of a first reactor vessel and second reactor vessel, phosphorus contained in the water is removed by using an adsorbent, thereafter the liquid held in each of the reactor vessels is discharged from each of a first treated water discharge path and second treated water discharge path, and thus the influence of soluble impurities derived from the water is eliminated. Further, when suspended solids impurities contained in the water are accumulated in the phosphorus adsorbent, the accumulated impurities are eliminated by a reverse cleaning operation using a liquid to be thereafter introduced from a reactor vessel liquid introduction path into the reactor vessel, and hence the influence of the suspended solids in the water on a desorption agent liquid to be thereafter introduced into a crystallization vessel, and containing phosphorus from the phosphorus adsorbent is eliminated.

Water treatment equipment

According to one embodiment, an oil adsorbent includes inorganic particles and a polymer formed on surfaces of or between the inorganic particles. The content rate of the inorganic particles is 50% by volume or more and 97% by volume or less relative to the inorganic particles and the polymer, and an area of the inorganic particles is 30% or more and 60% or less relative to a cross-section of the inorganic particles and the polymer.

Oil adsorbent and method of manufacturing oil adsorbent

A magnetic refrigeration material includes: at least one selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Tb by a range of 4 to 15 atomic percentages; at least one selected from the group consisting of Fe, Co, Ni, Mn and Cr by a range of 60 to 93 atomic percentages; at least one selected from the group consisting of Si, C, Ge, Al, Ga and In by a range of 2.9 to 23.5 atomic percentages; and at least one selected from the group consisting of Ta, Nb and W by a range of 1.5 atomic percentages or less, wherein the magnetic refrigeration material includes a NaZntype crystal structure as a main phase.

Magnetic refrigerating material and magnetic refrigerating device

The present embodiment relates to a method for recovering a boron adsorbent, including: preparing water having an electric resistivity of 0.01 M&#x3a9;&#xb7;cm or more and kept at a temperature within a temperature range; and contacting the water with the boron adsorbent to release boron adsorbed at the boron adsorbent.

Method for recovering a boron adsorbent

An oil adsorbent is configured so as to include: at least one particle of an inorganic particle and a metallic particle, at least one particle constituting a core; and a polymer covering the core, wherein the polymer is a copolymer made of at least one substance selected from the group of molecular structure A consisting of styrene, butadiene, isoprene, ethylene and propylene and at least one substance selected from the group of molecular structure B consisting of acrylic acid, methacrylic acid, acrylonitrile, vinylpyridine, vinyl alcohol, maleic anhydride and maleic acid.

Oil adsorbent, and method for recovering oil

A polymer composite is provided for a water treatment. The polymer composite with excellent workability is capable of adsorbing impurities in water, being rapidly separated from the water using magnetic forces. The polymer composite includes secondary aggregates. The secondary aggregates are formed of clumped particles, the particles being magnetic particles covered with a polymer. The polymer composite has porous structures suitable for adsorbing underwater impurities.

Polymer composite, water-treatment method using the same and manufacturing method of the same

A wastewater treatment method in an embodiment includes: mixing primary aggregates made of magnetic substances and a dispersion medium to make a suspension; and passing the suspension through a filter to allow the primary aggregates to remain on the filter and to form a secondary aggregate made of an aggregate of the primary aggregates. Further, the wastewater treatment method in the embodiment includes; passing wastewater through the secondary aggregate to remove suspended solids and oil in the wastewater; dispersing the secondary aggregate in a dispersion medium to decompose the secondary aggregate into the primary aggregates and to wash the primary aggregates; and collecting the primary aggregates with magnetic separation.

Wastewater treatment method

An oil adsorbent includes a plurality of particles, each being constituted from at least one of an inorganic particle and an organic particle as a core and a polymer covering the core. The plurality of particles are aggregated to form an aggregate so that a porosity of the aggregate is 70% or more.

Oil adsorbent, and method for recovering the same

According to one embodiment, in order to eliminate impurities, and the like, water to be treated is passed through each of reactor vessels, phosphorus contained in the water to be treated is removed by using an adsorbent, and thereafter the liquid held in each of the reactor vessels is discharged through each of first to third treated water discharge paths, thereby eliminating the impurities, and the like derived from the water to be treated. It is possible to eliminate the influence of the impurities in the water to be treated on the discharged desorption agent liquid containing phosphorus from the phosphorus adsorbent can be eliminated, and hence it is possible to obtain a phosphorus-containing liquid containing no substance other than the recovered phosphoric matter material.

Water treatment equipment for recovering phosphorus from water

An adsorbent includes: at least one of an inorganic particle and a metallic particle as a core; at least two kinds of polymers, which cover a surface of the core, with respective different surface tensions; and a convex-concave surface structure formed due to a difference in surface tension between the at least two kinds of polymers.

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Yokohama, Japan

Hideyuki Tsuji