Max Co., Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

Aqua Systems Limited

Naikai Salt Industries Co., Ltd.

Kazuhisa Takeuchi

Yoshiaki Ito

Hiroki Yamamoto

Yasushi Nakagawa

Katsunori Matsui

Kenji Tanaka

Susumu Okino

Hideo Suzuki

Osamu Itagaki

Nobuyuki Ukai

Takamichi Hoshino

Takeshi Morijiri

Takuya Chigira

Tatsunori Sera

Masashi Kiyosawa

Hideaki Sakurai

Hiroshi Nakashoji

Shigeru Yoshioka

Jun Satou

Hideo Iwahashi

Sadayoshi Takeuchi

Hidemasa Kakigami

Kiichi Tokunaga

Ryo Kamito

Takeshi Yasunaga

Masayuki Tabata

Masahiro Kishi

Yuta Hashimoto

Takayoshi Hori

Shinpei Kaneda

Yasuhide Gouda

Disclosed is a system for producing magnesium hydroxide including: a generation unit; and a recovery unit connected to the generation unit, wherein the generation unit has a reaction tank in which a calcium hydroxide slurry is added to water to be treated containing magnesium ions to crystallize magnesium hydroxide and to obtain a reaction slurry containing particles of magnesium hydroxide, and a sedimentation tank in which the reaction slurry is reserved to sediment the particles and to separate the reaction slurry into a separation slurry containing the particles at a high concentration and a separation liquid containing the particles at a low concentration, and wherein, in the recovery unit, an alkaline aqueous solution is added to the separation liquid to crystallize magnesium hydroxide and to obtain the reaction slurry and then the reaction slurry is reserved to sediment the particles and to recover the sedimented particles.

System for producing magnesium hydroxide

A system for producing a magnesium chloride aqueous solution includes a crystallization unit configured to generate reaction slurry in which particles of magnesium hydroxide are dispersed by adding a sodium hydroxide aqueous solution to water to be treated, a precipitation unit configured to store reaction slurry, precipitate particles and separate the reaction slurry into recovered slurry and a separated liquid, a removal unit configured to remove divalent cations from the water to be treated or the separated liquid to generate a reaction liquid, an acid-alkali generation unit configured to generate a sodium hydroxide aqueous solution and hydrochloric acid from the reaction liquid, and a reaction unit configured to generate a magnesium chloride aqueous solution by adding hydrochloric acid to the recovered slurry. The acid-alkali generation unit has a main body section configured to generate a sodium hydroxide aqueous solution and hydrochloric acid from the reaction liquid.

System for producing magnesium chloride aqueous solution and system for producing magnesium

It provides a reinforcing bar binding machine capable of surely wrapping and binding a wire to a binding object. The reinforcing bar binding machine includes a magazine in which two wires are housed so as to be drawable, a curl guide unit which winds the arranged wires around the reinforcing bar, by the operation of feeding the parallel wires at the curl guide unit to wind around the reinforcing bar, a wire feeding unit which to wrap around the reinforcing bar with the wires wound around the reinforcing bar, and a binding unit which twists a intersecting portion between one end side and the other end side of the wire wound around the reinforcing bar.

Binding machine

It provides a reinforcing bar binding machine capable of surely wrapping and binding a wire to a binding object. The reinforcing bar binding machine (A) includes a magazine (A) in which two wires (W) are housed so as to be drawable, a curl guide unit (A) which winds the arranged wires (W) around the reinforcing bar (S), by the operation of feeding the parallel wires (W) at the curl guide unit (A) to wind around the reinforcing bar (S), a wire feeding unit (A) which to wrap around the reinforcing bar (S) with the wires (W) wound around the reinforcing bar (S), and a binding unit (A) which twists a intersecting portion between one end side and the other end side of the wire (W) wound around the reinforcing bar (S).

The reinforcing bar binding machine which is capable of surely wrapping and binding a wire to a binding object. The reinforcing bar binding machine includes a magazine in which two wires are housed so as to be drawable, a curl guide unit which winds the arranged wires around the reinforcing bar, by the operation of feeding the parallel wires at the curl guide unit to wind around the reinforcing bar, a wire feeding unit which feeds the wires so that they are wound around the reinforcing bar, and a binding unit which twists an intersecting portion between one end side and the other end side of the wires wound around the reinforcing bar.

This water treatment system is provided with: a reverse osmosis membrane device; a biofilm treatment device that has a carrier, on a surface of which is formed a biofilm, and that treats water to be treated before the water to be treated is transmitted through the reverse osmosis membrane device; and at least one of a water to be treated stoppage period circulation means and a water to be treated stoppage period supply means that are driven when the intake of new water to be treated is stopped. The water to be treated stoppage circulation means supplies and circulates water to be treated from a water to be treated discharge outlet side of the biofilm treatment device to a water to be treated supply port side. The water to be treated stoppage period supply means supplies new water to be treated to the biofilm treatment device.

Water treatment system

A desalination apparatus includes a pretreatment devicehaving a pretreatment membranethat filters suspended matters in raw waterwith added chlorine-containing water, a reverse osmosis membrane devicehaving a reverse osmosis membranethat removes a salt content from filtrate watersupplied from the pretreatment deviceto produce permeated water, and a reducing-agent injection devicethat neutralizes the added chlorine on an upstream side of the reverse osmosis membrane device. The reducing-agent injection deviceextracts a partof the filtrate water, adds metering SBS solutionto the part, obtains a maximum change point (equivalence point) of the oxidation-reduction potential of a reducing agent and chlorine, obtains reducing-agent additive concentration (Csm) corresponding to the equivalence point, and supplies the SBS solutioncorresponding to the concentration to the filtrate waterto thereby neutralize the chlorine.

Desalination apparatus and desalination method

An embodiment of the present invention includes: a recycle line that brings a part of salt-enriched membrane separation concentrated waterback to the rear flow side of a pretreatment apparatus; a water discharge line that discharges the remained concentrated water into a sea area; and a control apparatusthat controls to adjust the ratio between the discharging amount of the discharging membrane separation concentrated water to be discharged into a sea area and the supplying amount of supplying seawater. A pH is set to be equal to or less than 7.3 by adding acid. The saltis obtained from the dryer, and produced water (fresh water)is obtained by combining evaporated watersupplied from the evaporatorwith the permeated watersupplied from the reverse osmosis membrane apparatus

Co-producing apparatus for salt and fresh water and co-producing method of the same

In a connected fastener assembly, the shaft sections of multiple fasteners are connected using a connecting band made of a synthetic resin. Retaining sections for allowing the shaft sections of the fasteners to be inserted therein and connecting sections for connecting the adjacent retaining sections are formed continuously. The connecting sections are offset from the center line 'a' connecting the centers of the adjacent fasteners (retaining sections).

Connected fastener assembly

A high-pressure pump Pthat increases the pressure of raw water, a high-pressure reverse osmosis device including a high-pressure reverse osmosis membrane for concentrating a salt content in high-pressure feed water, a first drain valve mounted on a permeated water line for supplying the permeated water downstream and temporarily draining permeated water of an initial start-up from a discharge line, a low-pressure pump that is mounted on a permeated water line provided downstream of the first drain valve and reduces the pressure of the permeated water, a low-pressure reverse osmosis device including a low-pressure reverse osmosis membrane for concentrating a salt content in low-pressure feed water, and a second drain valve mounted on a discharge line at the concentrated water side of the low-pressure reverse osmosis device that temporarily discharges the low-pressure feed water of the initial start-up supplied to the low-pressure reverse osmosis device.

Multi-stage seawater desalination apparatus and operation control method of multi-stage seawater desalination apparatus

A connected fastener assembly is formed by fitting a shaft guide on a shaft section of each fastener, by connecting the fasteners using two connecting sheets made of a synthetic resin and disposed on upper and lower sides of the shaft guides. Since the connecting sheets have through holes thorough which the fasteners pass and connecting sections formed so as to be easy to bend or difficult to bend in the width direction, the connected fastener assembly can be formed into a straight type or a coil type. In a connected fastener assembly, shaft sections of a plurality of fasteners are connected by a connecting band formed of a thin sheet of a synthetic resin. Ring-shaped retaining sections for retaining the shaft sections are formed at constant intervals in the connecting bands. The ring-shaped retaining sections are disposed so as to be overlaid on shaft guides made of soft materials and fitted on the shaft sections. Each of the shaft guides is formed into a cylindrical shape. An outside diameter of each of the ring-shaped retaining sections of the connecting band is larger than an outside diameter of the each of the shaft guides.

A connected fastener assembly is formed by fitting a shaft guide on a shaft section of each fastener, by connecting the fasteners using two connecting sheets made of a synthetic resin and disposed on upper and lower sides of the shaft guides. Since the connecting sheets have through holes through which the fasteners pass and connecting sections formed so as to be easy to bend or difficult to bend in the width direction, the connected fastener assembly can be formed into a straight type or a coil type. In a connected fastener assembly, shaft sections of a plurality of fasteners are connected by a connecting band formed of a thin sheet of a synthetic resin. Ring-shaped retaining sections for retaining the shaft sections are formed at constant intervals in the connecting bands. The ring-shaped retaining sections are disposed so as to be overlaid on shaft guides made of soft materials and fitted on the shaft sections. Each of the shaft guides is formed into a cylindrical shape. An outside diameter of each of the ring-shaped retaining sections of the connecting band is larger than an outside diameter of the each of the shaft guides.

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Tokyo, Japan

Kazuhisa Takeuchi