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Dissolution and precipitation in the Hanford sediments under hyperalkaline conditions


EMSL Project ID
3054

Abstract

Abstract

Hanford sediments were treated with Al-rich, hyperalkaline and saline solution.
As a result, dissolution ocurred and Si, Fe, K, Al, Mn, Mg, Ca, Ba were released
into the soil solution. Simultaneously, precipitation of secondary phases also
ocurred, and minerals in the group of cancrinite, sodalite and Fe oxides were
formed. It is necessary to run Mossbauer analyses to determine what
Fe oxides mineral species were formed.

Project Details

Project type
Exploratory Research
Start Date
2002-11-12
End Date
2003-11-10
Status
Closed

Team

Principal Investigator

Nikolla Qafoku
Institution
Pacific Northwest National Laboratory