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Physico-chemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marl sample from Wellenberg

Technical Report:

Abstract

Wellenberg (Gemeinde Wolfenschiessen, NW) has been chosen by Nagra as a repository site for short lived low- and medium-level radioactive waste. In certain regions of this Palfris marl formation, foreseen as actual locations for the repository, the water flow rates are so low that reliable water samples for chemical analysis were not obtainable. A sample of Palfris marl was provided from such a region and a physico-chemical characterisation technique, developed and tested in previous work, was applied. The measurements, coupled with a geochemical modelling study, yielded a NaCl type porewater with an ionic strength of {approx_equal}0.12 M. In addition, a matrix marl porosity of {approx_equal}1.5% was deduced using the chloride concentrations in the calculated porewater and measurements on the chloride content of marl. (author) 2 figs., 14 tabs., 12 refs.
Authors:
Baeyens, B; Bradbury, M H [1] 
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Publication Date:
Nov 01, 1994
Product Type:
Technical Report
Report Number:
PSI-94-19
Reference Number:
SCA: 400201; 052002; PA: AIX-26:007757; EDB-95:009071; SN: 95001300788
Resource Relation:
Other Information: PBD: Nov 1994
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CLAYS; CHEMICAL PROPERTIES; PHYSICAL PROPERTIES; GROUND WATER; SWITZERLAND; CHLORIDES; EXPERIMENTAL DATA; MATHEMATICAL MODELS; NICKEL COMPLEXES; THEORETICAL DATA; 400201; 052002; CHEMICAL AND PHYSICOCHEMICAL PROPERTIES; WASTE DISPOSAL AND STORAGE
OSTI ID:
10103922
Research Organizations:
Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Other: ON: DE95610662; TRN: CH9400376007757
Availability:
OSTI; NTIS; INIS
Submitting Site:
CHN
Size:
33 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Baeyens, B, and Bradbury, M H. Physico-chemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marl sample from Wellenberg. Switzerland: N. p., 1994. Web.
Baeyens, B, & Bradbury, M H. Physico-chemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marl sample from Wellenberg. Switzerland.
Baeyens, B, and Bradbury, M H. 1994. "Physico-chemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marl sample from Wellenberg." Switzerland.
@misc{etde_10103922,
title = {Physico-chemical characterisation and calculated in situ porewater chemistries for a low permeability Palfris marl sample from Wellenberg}
author = {Baeyens, B, and Bradbury, M H}
abstractNote = {Wellenberg (Gemeinde Wolfenschiessen, NW) has been chosen by Nagra as a repository site for short lived low- and medium-level radioactive waste. In certain regions of this Palfris marl formation, foreseen as actual locations for the repository, the water flow rates are so low that reliable water samples for chemical analysis were not obtainable. A sample of Palfris marl was provided from such a region and a physico-chemical characterisation technique, developed and tested in previous work, was applied. The measurements, coupled with a geochemical modelling study, yielded a NaCl type porewater with an ionic strength of {approx_equal}0.12 M. In addition, a matrix marl porosity of {approx_equal}1.5% was deduced using the chloride concentrations in the calculated porewater and measurements on the chloride content of marl. (author) 2 figs., 14 tabs., 12 refs.}
place = {Switzerland}
year = {1994}
month = {Nov}
}