Resins used in demineralization systems may deteriorate due to many factors including chemical attack, fouling by organic and inorganic materials, mishandling, or the effects of aging. Detection of degradation or fouling may be important in determining the cause of poor demineralizer performance.

1. Scope

1.1 This guide presents a series of tests and evaluations intended to detect fouling and degradation of particulate ion exchange materials. Suggestions on reducing fouling and on cleaning resins are given.

1.2 This guide is to be used only as an aid in the evaluation of particulate ion exchange material performance and does not purport to address all possible causes of unsatisfactory performance. The evaluations of mechanical and operational problems are not addressed.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1129 Terminology Relating to Water

D1782 Test Methods for Operating Performance of Particulate Cation-Exchange Materials

D2187 Test Methods for Physical and Chemical Properties of Particulate Ion-Exchange Resins

D2332 Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-Ray Fluorescence

D2687 Practices for Sampling Particulate Ion-Exchange Materials

D3087 Test Method for Operating Performance of Anion-Exchange Materials for Strong Acid Removal

D3375 Test Method for Column Capacity of Particulate Mixed Bed IonExchange Materials

D3682 Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes

D3683 Test Method for Trace Elements in Coal and Coke Ash by Atomic Absorption

D5042 Test Method for Estimating the Organic Fouling of Particulate Anion Exchange Resins

E830 Test Method for Ash in the Analysis Sample of Refuse-Derived Fuel

Keywords

degradation; fouling; ion exchange; kinetics; resin; Contamination--water; Degradation; Fouling tendency; Ion exchange resins; Kinetic behavior/characteristics/parameters; Organic fouling;

ICS Code

ICS Number Code 71.100.40 (Surface active agents)

Citing ASTM Standards

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