US 2017/0362097 A1 · SYSTEM AND METHOD FOR CONTROLLING PERFORMANCE OF AQUEOUS HAZARDOUS WASTE CAPTURE

Abstract

Systems and methods are disclosed for controlling performance of a mixed ion exchange media comprising two or more media. The weighted average of a quantity of the first media having a first rate of exchange to a quantity of a second media having a second rate of exchange is determined based on predetermined requirements for the resulting mixed media. After determining the weighted average, the first and second media are mixed resulting in a mixed media having a third rate of exchange. The mixed media is introduced to an ion exchange column. Contaminated liquid is then introduced to the column creating a mass transfer zone within the column. The mixed media is generally considered optimized when it meets three conditions simultaneously: 100% safety limitation, 100% media capacity used, and effluent criteria are met.

Claims24

Dependent claims

A method for controlling performance of at least one of an ion exchange media and ion exchange system, comprising:

determining a weighted average of a first quantity of a first ion exchange media having a first rate of exchange and a first capacity to a second quantity of a second ion exchange media having a second rate of exchange and a second capacity, wherein the weighted average is a third rate of exchange that is different than the first rate of exchange and the second rate of exchange,
responsive to determining the weighted average, mix the first quantity with the second quantity generating a third quantity of a mixed ion exchange media having the third rate of exchange,
introducing the mixed ion exchange media into a column, and
introducing a contaminated liquid into the column, wherein the introduction of the contaminated liquid to the mixed ion exchange media creates a mass transfer zone within the column, wherein the mass transfer zone moves through the column at the third rate of exchange.

1 more element

A system for treatment of a contaminated liquid, comprising;

a contaminated liquid, wherein the contaminated liquid comprises at least a first cation and a second cation;
a mixed bed ion exchange column comprising a mixture of a first cation exchange media and a second cation exchange media, wherein the mixture allows for the simultaneous exchange of the first and second cation, wherein the mixture further allows for the simultaneous exchange of the first cation with equal and different attraction strengths, and wherein the mixed bed ion exchange column is configured to operate by:
determining concentrations of the first and second cations in the contaminated liquid,
determining safety and dose limitations of the mixed bed ion exchange column when fully loaded,
determining a ratio of the first ion exchange media to the second ion exchange media, wherein the ratio is based on a predetermined exchange of the mixed media to target specific ions, and wherein the ratio represents the total ion exchange capacity of the mixed bed ion exchange column,
monitoring the mixed bed ion exchange column with a sensor, wherein the sensor detects at least one of activity and ion concentration for the contaminated liquid;
using the at least one of activity and ion concentration in the contaminated liquid to determine size of the ion exchange column by at least one of determining the speed of the mass transfer zone and the length of the mass transfer zone.

4 more elements

Dependencies are inferred from the claim text.

System and method for controlling performance of aqueous hazardous waste capture

Life of this patent

System and method for controlling performance of aqueous hazardous waste capture

Life of this patent

Abstract

Claims24