Adsorption of Actinides onto Colloids as a Function of Time, Temperature, Ionic Strength, and Colloid Concentration | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

3794220

Reference Type

Technical Report

Title

Adsorption of Actinides onto Colloids as a Function of Time, Temperature, Ionic Strength, and Colloid Concentration

Author(s)

Lu, N; Conca, J; Parker, GR; Leonard, PA; Moore, B

Year

2000

Report Number

NTIS/02929465_a

Volume

GRA and I

Issue

GRA and I

Abstract

Plutonium, neptunium, uranium and americium are four radionuclides of concern for long-term emplacement of nuclear wastes at potential repository sites. These four actinides may have a high potential to migrate if attached to iron oxide, clay, or silica colloids in groundwater. Strong sorption of the actinides by colloids in groundwater may facilitate transport of these radionuclides along potential flowpaths. In porous media, colloids that are small in relation to the pores of the surrounding matrix may migrate long distances through the network of pore spaces.