Abstract:
A device and process are disclosed for the separate removal of oppositely charged ions from electrolyte solutions and recombining them to form new chemical compositions. The invention provides the ability to create multiple ion flow channels and then form new chemical compositions therefrom. The process is accomplished by selectively combining oppositely charged ions of choice from different electrolyte solutions via the capacitive behavior of high electrical capacitance electrodes confined in insulated containers.
Abstract:
The present invention provides a membrane-electrode assembly which includes: at least one rod-form or tubular electrode; a tubular diaphragm disposed around the periphery of the electrode; and a wire-form counter electrode disposed around the periphery of the diaphragm, the diaphragm being fixed to the rod-form or tubular electrode with the wire-form counter electrode to thereby form an electrode chamber having a gas/liquid passage between the diaphragm and the rod-form or tubular electrode.
Abstract:
An apparatus for preparing hydrogen water includes: an electrolysis device configured to electrolyze water and including an electrode module formed of a positive electrode, a negative electrode, a solid polymer electrolyte membrane, and an auxiliary electrode, wherein the electrolysis device is divided into a first chamber and a second chamber with the electrode module as a center; a hydrogen water discharge port configured to discharge hydrogen water including active hydrogen generated at the negative electrode of the first chamber, by being arranged in the first chamber; a spray port configured to spray water toward the negative electrode, by being arranged in the first chamber; an ozone water discharge port configured to discharge water including ozone generated at the positive electrode of the second chamber; a storage tank configured to store hydrogen water and sterilizing water in an internal space thereof, by being connected to a first flow channel connected to the hydrogen water discharge port and to a second flow channel connected to the first flow channel and receiving the hydrogen water generated in the first chamber, and by receiving the sterilizing water generated in the second chamber through a fourth flow channel connected to the ozone water discharge port; and a pump including an output end connected to the a flow channel connected to the spray port and an input end connected to a fifth flow channel connected to a bottom surface of the storage tank, wherein the spray port sprays the hydrogen water stored in the storage tank, using a pressure of the pump, faster than a flow velocity of the hydrogen water discharged through the hydrogen water discharge port.
Abstract:
The present invention provides a system for solvent extraction utilizing a first electrode with a raised area formed on its surface, which defines a portion of a microfluidic channel; a second electrode with a flat surface, defining another portion of the microfluidic channel that opposes the raised area of the first electrode; a reversibly deformable substrate disposed between the first electrode and second electrode, adapted to accommodate the raised area of the first electrode and having a portion that extends beyond the raised area of the first electrode, that portion defining the remaining portions of the microfluidic channel; and an electrolyte of at least two immiscible liquids that flows through the microfluidic channel. Also provided is a system for performing multiple solvent extractions utilizing several microfluidic chips or unit operations connected in series.
Abstract:
Process and apparatus to remove colloids and nitrogen compounds from contaminated water by coagulating the colloids and separating them from the water. The water is then continuously oxidized with chlorine electrolytically to destroy the nitrogen compounds.
Abstract:
This invention relates to an electric double layer capacitor electrochemical cylinder (11) made up of concentric layers of capacitors (16), current collectors (14a, 14b, 14c), ion specific membranes (18, 18a, 18b) and dielectric spacer (20) wrapped around an inner support tube (12) that can be used as a high capacitance capacitor and to remove dissolved solids from a liquid stream such as water, acid, aqueous or non-aqueous.
Abstract:
A water treatment system is disclosed having electrolytic cell for liberating hydrogen from a base solution. The base solution may be a solution of brine for generating sodium hypochlorite, or potable water to be oxidized. The cell has first and second opposing electrode endplates held apart from each other by a pair of supports such that the supports enclose opposing sides of the endplates to form a cell chamber. One or more inner electrode plates are spaced apart from each other in the cell chamber in between the first and second electrode plates. The supports are configured to electrically isolate the first and second electrode plates and the inner electrode plates from each other. The first and second electrode plates are configured to receive opposite polarity charges that passively charge the inner electrode plates via conduction from the base solution to form a chemical reaction in the base solution as the base solution passes through the cell chamber.
Abstract:
An electrolysis device is configured such that water flowing into a container from an inlet flows from an upstream side to a downstream side in the container and flows out from an outlet. A first electrode pair is arranged on the upstream side than a second electrode pair. In the electrolysis device, in order to suppress a decrease in current density due to electrolyte concentration in the water in the second electrode pair arranged on the downstream side than the first electrode pair, the current density in the second electrode pair is adjusted.
Abstract:
A liquid electrolyte can be desalinated and purified using a system that includes a first electrode and a configuration selected from (a) a second electrode and at least one distinct ion-selective boundary and (b) a second electrode that also serves as the ion-selective boundary. The ion-selective boundary is contained in the liquid conduit adjacent to a porous medium that defines pore channels filled with the liquid and that have a surface charge, and the charge of the ion-selective boundary and the surface charge of the pore channels share the same sign. A liquid including at least one charged species flows through the pore channels, forming a thin diffuse electrochemical double layer at an interface of the liquid and the charged surface of the pore channels. A voltage differential is applied between the electrodes across the porous medium to draw ions in the liquid to the electrodes to produce brine at the electrodes and to create a shock in the dissolved-ion concentration in the bulk volume of the liquid within the pore channels, wherein a depleted zone with a substantially reduced concentration of dissolved ions forms in the liquid bulk volume between the shock and the ion-selective boundary.
Abstract:
System and methods are disclosed for filtering wastewater. In one embodiment, a water filtering system comprises a first filtering stage and a second filtering stage. The first filtering stage receives a flow of wastewater, and uses electrocoagulation to separate suspended particles from the wastewater and produce filtered wastewater. The second filtering stage receives the filtered wastewater from the first filtering stage, and uses mechanical filtering to remove suspended particles from the filtered wastewater and produce filtered water that is substantially free from suspended particles.