摘要:
본 발명의 일 실시예에 따른 탈이온 필터 장치는 제1 전극, 제2 전극, 양이온 교환막 및 음이온 교환막을 포함하며, 상기 제1 전극과 제2 전극 사이에 위치하는 적어도 하나의 바이폴라 이온교환시트, 상기 제1 전극과 제2 전극 사이에 탈이온전압 또는 재생전압을 인가하는 전압원, 상기 전압원에 의해 인가되는 전압에 의해 처리되는 용액의 pH를 검출하는 pH센서 및 상기 용액의 pH에 따라 상기 전압원을 제어하는 제어부를 포함한다.
摘要:
To achieve high efficiency in regeneration of waste fluid from metal plating electrolytes for example, a device and a method for recovering a recovering material from a recovering fluid containing the recovering material are provided, wherein the device comprises at least one container C, the at least one container C comprising at least one sorption material, the at least one sorption material forming at least one sorption bed SB in the at least one container C and the sorption bed SB allows the fluid to flow there through. The at least one container C comprises at least one means for fixing ML, EP, FM, MO the at least one sorption bed SB to compensate for a volume change VC thereof. The method comprises a) loading the recovering material, in a loading step, to at least one sorption material forming at least one sorption bed S which is comprised in at least one container C by bringing a recovering fluid containing the recovering material into contact with the at least one sorption material; b) unloading the recovering material, in a regenerating step, from the at least one sorption material by bringing a regenerant fluid into contact with the at least one sorption material which is loaded with the recovering material and loading the recovering material to the regenerant fluid, and c) fixing the at least one sorption bed (SB) to compensate for a volume change (VC) thereof.
摘要:
The invention relates to a spacer, cell and membrane for an ion-exchanging process, and a method for operating such process, and a method for providing a membrane connected to a corresponding spacer part. The spacer according to the invention comprises: -a first part comprising a first material; and -a second part comprising a second material, wherein at least one material is an ion exchanging material. Preferably, both the materials of the first and second part of the spacer are ion conductive materials and wherein preferably the spacer parts are provided with openings that extend substantially in one direction wherein in use these openings of adjacent spacer parts extend substantially perpendicular to each other.
摘要:
A method and a system for process parameter control of a liquid composition in a reverse electro-enhanced dialysis (REED) system comprising at least two Reverse Electro-Enhanced Dialysis (REED) membrane stacks, wherein the direction of the electric field within any one membrane stack is reversed at asynchronical intervals of time relative to the current reversals for any other membrane stack.
摘要:
A method and apparatus for producing purified water. Treated water may be provided for domestic use wherein the water may be treated by removing selected dissolved species while retaining properties that may improve the properties or aesthetics of the water.
摘要:
Arrangement for electrochemical purification or treatment of a liquid, utilizing an electrochemical cell (20), where two electrodes (20B,20C) are provided with ion exchange membranes (C,A) arranged between them to delimit a plurality of channels (CE,CC,CP). According to the invention, at least a few channels (CE,CC,CP) have respective second electrodes ( + ,- ) associated to them for obtaining a cleaning substance or solution, the latter being apt to dissolve and/or remove likely residuals and/or scaling deposited inside the cell (20).
摘要:
A cation-exchange membrane which has excellent durability, a high critical current density, a low direct-current membrane resistance, and excellent selectivity to monovalent cations. The cation-exchange membrane excellent in selective permeability to monovalent cations is produced by bringing high-molecular cations into contact with the surface of a cation-exchange membrane in the presence of anions of an oxoacid or anions of an organic sulfonic acid.
摘要:
The inventive device comprises an electrodialysis unit (5) comprising the following: two electrodes (37, 37') for generating a continuous electric field between them and, between the electrodes, a plurality of ion-exchanger membranes (44, 45) which select of positive or negative ions (45), a plurality of membrane separator frames (41), each of which is arranged between two membranes (44, 45) so that the water to be treated can pass over the surface of the adjacent membranes, and two separator frames (40) for separating the electrodes and the membranes, which are arranged between the two electrodes (37, 37') and the adjacent membranes (44) to allow the water to pass along the electrodes, the water to be treated only being guided into the separator frames (41) between two ion exchange membranes and the purified water being guided into the frames (40) separating the electrodes and the membranes, before being guided to the exit (33) of the electrodialysis unit.
摘要:
In one embodiment, the present invention relates to a method of making a catalytic film comprising: applying an electric current to an electrochemical cell comprising an anode, a cathode and a solution comprising a film forming compound and a nitrate ion source thereby forming the catalytic film. In another embodiment, the present invention relates to a method of preparing a hydroxylammonium salt, involving the steps of: providing an electrochemical cell containing an anode, a cathode, and a divider positioned between the anode and the cathode, to define a catholyte compartment between the cathode and the divider and an anolyte compartment between the anode and the divider; charging the catholyte compartment with a first solution comprising a nitrogen containing compound and a mediator and the anolyte compartment with a second solution comprising an ionic compound; passing a current through the electrochemical cell to produce a hydroxylammonium salt in the catholyte compartment; and recovering the hydroxylammonium salt from the catholyte compartment.