Abstract:
A method and apparatus for desalinating saltwater using concentration difference energy is disclosed. In order to desalinate saltwater that is contained within a product chamber, a drive cell is used to generate a drive voltage. The product chamber has a desalination voltage such that when a sufficient voltage is applied to the product chamber, anions and cations migrate out of the product chamber, thereby desalinating the water. The sufficient voltage, which includes the drive voltage and which is equal to or greater than the desalination voltage, is applied to the product chamber, consequently effecting desalination. Beneficially, concentration difference energy can be generated using a concentrated solution, which can be generated using, for example, solar energy.
Abstract:
The invention relates, in particular, to a process for treating a liquid medium loaded with nitrates via a chemical route that mainly comprises a step of electrolysis of the liquid medium in the presence of a metal salt, the electrolysis being carried out at a pH below 5. The invention also relates to a device for treating a liquid medium loaded with nitrates and also to the applications of this process and device, in particular for reducing the level of nitrates in drainage waters.
Abstract:
PROBLEM TO BE SOLVED: To provide an electrolyzer capable of improving efficiency in removing scale components, and a heat pump type water heater equipped with the electrolyzer.SOLUTION: The electrolyzer 41 is configured such that water flowing into a container 47 from an inlet flows downward from the upstream side inside the container 47 and flows out of an outlet. A first electrode pair 49 is disposed upstream of a second electrode pair 49. In this electrolyzer 41, the current density of the second electrode pair 49 is adjusted to suppress a fall in the current density caused by underwater electrolyte concentration in the second electrode pair 49 disposed downstream.
Abstract:
An electrolysis cell is provided, which includes an inlet, an outlet, and coaxial, cylindrical inner and outer electrodes. A cylindrical ion-selective membrane is located between the inner and outer electrodes and forms respective first and second electrolysis reaction chambers on opposing sides of the membrane. Fluid flow paths along the first and second chambers join together as a combined inlet flow path through the inlet and a combined outlet flow path through the outlet.
Abstract:
An electrolyzed water producing apparatus comprises an electrolysis unit including a diaphragm electrolytic cell and a diaphragmless electrolytic cell; a water supply pipe with a three-way valve; a water take-out pipe having one end connected to each anode chamber to remove anode electrolyzed water; a water take-out pipe having one end connected to each cathode chamber to remove cathode electrolyzed water; and a water take-out pipe provided with a free chlorine removing filter and having one end connected to each diaphragmless electrolytic chamber to remove mixed electrolyzed water. The diaphragm electrolytic cell contains a pair of electrode plates, and a plurality of electrolytic chambers, at least one of which includes an anode chamber and a cathode chamber. The diaphragmless electrolytic cell contains a pair of electrode plates, and diaphragmless electrolytic chambers which are the remaining electrolytic chambers.
Abstract:
PROBLEM TO BE SOLVED: To make the life of an apparatus for generating electrolytic water longer. SOLUTION: The apparatus for generating electrolytic water 1 includes: a holding member 24e, which holds both the ends of a diaphragm 23 in the water flowing direction of a water flow passage, and which constitutes the passage face of the water flow passages 25 and 26; and a plurality of regulating parts 24f which are provided at both the ends of the holding member 24e in the water flowing direction of the water flow passages 25 and 26, and which regulates the distance between the diaphragm 23 and electrode plates 21 and 22. In the part connected to the diaphragm 23 of the downstream side end of the holding member 24e in the water flowing direction of the water flow passages 25 and 26, the thickness t1 in the thickness direction of the diaphragm 23 at the part 24m which constitutes the passage face of the water passage is the thickness t2 or smaller of the diaphragm 23. COPYRIGHT: (C)2010,JPO&INPIT