A system and method for providing mobile or temporary water treatment involving ion exchange resins includes a service center, one or more treatment vehicles, a resin transfer hub and one or more resin transport vehicles. The service center can be used to regenerate one or more types of ion exchange resins. The treatment vehicle carries water treatment equipment including a tank holding ion exchange resin. The resin transfer hub facilitates moving resin between a treatment vehicle and a resin transport vehicle. The resin transport vehicle is adapted for carrying resin by one or more of land, sea and air between the resin forwarding center and the service center. In operation, a treatment vehicle brings resin requiring regeneration to the resin transfer hub, where it is emptied and then re-filled with regenerated resin. Resin requiring regeneration is transferred to a resin transport vehicle for transport to the service center. The resin transport vehicle is re-filled there with regenerated resin, which is taken back to the resin transfer hub for transferred to a treatment vehicle.

Provided are a device and a method for purifying an organic amine solution. The device includes an ion exchange bed having an upper feeding port, through which the ion exchange bed is communicated with an inert gas cylinder, a fifth liquid storage tank and a second liquid adding pump; a lower feeding port, through which the ion exchange bed is communicated with a first liquid adding pump; a lower discharging port, through which the ion exchange bed is communicated with a second liquid storage tank, a third liquid storage tank and a fourth liquid storage tank; and an upper discharging port, through which the ion exchange bed is communicated with the fourth liquid storage tank.

Deionization equipment and methods of using such deionization equipment are provided. The deionization equipment allows for improved efficiency in removing spent deionization resin from deionization apparatuses, and also recharging functional deionization resin into deionization apparatuses. Embodiments of the deionization equipment include a resin transfer passage that includes an upper opening, a lower opening and an intermediate opening.

An impurity removal system for process water for an electrolytic cell.

An impurity removal system for process water for an electrolytic cell.

The present invention is directed at a novel ion exchange regeneration process where there is no need for resin separation or acid and base consumption for regeneration. An exhausted strong acid/strong base mixed bed resin suitable for seawater desalination can be regenerated in situ, that is without the need for bead separation, by washing with high pressure (<10 atm) concentrated ammonium bicarbonate (AB) solution (up to a concentration of 8-10 m) at moderately elevated temperatures, of up to 60-80 C. Under these conditions a relatively small amount of AB solution can be used to regenerate an exhausted mixed bed resin, converting it into a form where it is saturated with absorbed NH.sub.4.sup.+ and HCO.sub.3.sup. ions. This resin can then be used for seawater desalination, via direct exchange with Na.sup.+ and Cl.sup. ions, as well as other ions in seawater. By this method the volume of produced drinking water can be at least 2-4 times the volume of the AB solution required, which is then discarded as waste concentrated salt solution. The AB dissolved in the desalinated product water can be easily thermally decomposed, by heating to 60-80 C., or lower under a reduced pressure, which completely removes the AB in the form of the emitted gases NH.sub.3 and CO.sub.2, which can then be captured and redissolved in cool water to reform the regenerant solution. The application of an increased pressure for driving super saturated ammonium bicarbonate regeneration can also be carried out using guided ultrasonic waves. A suitable frequency and intensity of wave-guided ultrasonic waves, transmitted along the inside of a container housing the exhausted mixed bed resin, immersed in concentrated or supersaturated AB solution, drives the ion exchange regeneration process. Alternatively, the pressure applied to the resin could be generated via the centrifugal forces produced inside a spinning drum.

The present invention is directed at a novel ion exchange regeneration process where there is no need for resin separation or acid and base consumption for regeneration. An exhausted strong acid/strong base mixed bed resin suitable for seawater desalination can be regenerated in situ, that is without the need for bead separation, by washing with high pressure (<10 atm) concentrated ammonium bicarbonate (AB) solution (up to a concentration of 8-10 m) at moderately elevated temperatures, of up to 60-80 C. Under these conditions a relatively small amount of AB solution can be used to regenerate an exhausted mixed bed resin, converting it into a form where it is saturated with absorbed NH.sub.4.sup.+ and HCO.sub.3.sup. ions. This resin can then be used for seawater desalination, via direct exchange with Na.sup.+ and Cl.sup. ions, as well as other ions in seawater. By this method the volume of produced drinking water can be at least 2-4 times the volume of the AB solution required, which is then discarded as waste concentrated salt solution. The AB dissolved in the desalinated product water can be easily thermally decomposed, by heating to 60-80 C., or lower under a reduced pressure, which completely removes the AB in the form of the emitted gases NH.sub.3 and CO.sub.2, which can then be captured and redissolved in cool water to reform the regenerant solution. The application of an increased pressure for driving super saturated ammonium bicarbonate regeneration can also be carried out using guided ultrasonic waves. A suitable frequency and intensity of wave-guided ultrasonic waves, transmitted along the inside of a container housing the exhausted mixed bed resin, immersed in concentrated or supersaturated AB solution, drives the ion exchange regeneration process. Alternatively, the pressure applied to the resin could be generated via the centrifugal forces produced inside a spinning drum.