Ion exchange resin transporation and storage

Patent metadata

Field	Value
Publication number	US-10850271-B2
Application number	US-201715679217-A
Country	US
Kind code	B2
Filing date	Aug 17, 2017
Priority date	Aug 17, 2016
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

A method of stabilizing virgin ion exchange resin material is provided. The method includes rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel and hermetically sealing the vessel. A vessel containing deoxygenated water and virgin ion exchange resin material is also provided. A method of facilitating water treatment in a site in need thereof by providing the gas impermeable vessel containing virgin ion exchange resin material and residual moisture from deoxygenated water is also provided.

First claim

What is claimed is:

1. A method of stabilizing virgin ion exchange resin material, the method comprising:
rinsing the virgin ion exchange resin material with deoxygenated water having a dissolved oxygen concentration of less than about 10 ppb and a dissolved nitrogen concentration of less than about 0.1 ppm, to produce a rinsed virgin ion exchange resin material;
introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel;
hermetically sealing the vessel; and
storing the rinsed virgin ion exchange resin material with residual deoxygenated water in the hermetically sealed vessel for a predetermined period of time.

2. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a concentration of dissolved chlorine of less than about 10 ppb.

3. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises introducing deoxygenated water into the gas impermeable vessel and removing interstitial deoxygenated water from the vessel.

4. The method of claim 1 , comprising maintaining between about 40% to about 50% moisture content in the rinsed virgin ion exchange resin material.

5. The method of claim 1 , further comprising producing the deoxygenated water by deoxygenating non-deoxygenated water.

6. The method of claim 5 , comprising one of passing the non-deoxygenated water through a deoxygenation membrane and subjecting the non-deoxygenated water to vacuum degasification to produce the deoxygenated water.

7. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a concentration of dissolved oxygen effective to reduce a rate of oxidative degradation of the virgin ion exchange resin material such that a first volume of water treated by the virgin ion exchange resin material comprises less than about 10 ppb total organic carbon after storing the virgin ion exchange resin material in the vessel for the predetermined period of time.

8. The method of claim 7 , wherein the first volume of water treated by the virgin ion exchange resin material comprises less than about 10 ppb sulfate.

9. The method of claim 7 , wherein the first volume of water treated by the virgin ion exchange resin material comprises less than about 10 ppb chloride.

10. The method of claim 7 , comprising storing the virgin ion exchange resin material in the vessel for a predetermined period of at least about six months.

11. The method of claim 1 , further comprising unsealing the vessel and rinsing the virgin ion exchange resin material with deoxygenated water prior to use.

12. The method of claim 1 , further comprising removing residual organic material from the virgin ion exchange resin material by rinsing the virgin ion exchange resin material with deionized water prior to use.

13. The method of claim 12 , wherein rinsing the virgin ion exchange resin material with deionized water prior to use includes rinsing the virgin ion exchange resin material with non-deoxygenated deionized water.

14. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a dissolved carbon dioxide concentration of less than about 0.1 ppm.

15. A method of facilitating water treatment at a site in need thereof, the method comprising:
rinsing virgin ion exchange resin material with deoxygenated water having a dissolved oxygen concentration of less than about 10 ppb and a dissolved nitrogen concentration of less than about 0.1 ppm, to produce a rinsed virgin ion exchange resin material;
introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel;
hermetically sealing the vessel; and
providing the gas impermeable vessel comprising the rinsed virgin ion exchange resin material and residual moisture to the water treatment site.

16. The method of claim 15 , comprising providing the gas impermeable vessel comprising the virgin ion exchange resin material with between about 40% and about 50% moisture content.

17. The method of claim 15 , further comprising providing instructions to maintain the virgin ion exchange resin material in the hermetically sealed vessel until it is to be used.

18. The method of claim 15 , further comprising providing instructions to unseal the vessel and rinse the virgin ion exchange resin material with deoxygenated water prior to use in water treatment.

19. The method of claim 15 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a dissolved carbon dioxide concentration of less than about 0.1 ppm.

Assignees

• Evoqua Water Tech Llc

Inventors

• Buckner James
• Bachman Gregory

Classifications

• C02F1/42

  by ion-exchange (ion-exchange in general B01J) · CPC title

• B01J47/016

  Modification or after-treatment of ion-exchangers · CPC title

• B01J49/53

  for cationic exchangers · CPC title

• B01J2219/0286

  Steel · CPC title

• C02F1/20

  by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D) · CPC title