Full title: Porewater Extraction from Argillaceous Rocks for Geochemical Characterisation [electronic resource]: Methods and Interpretations / Organisation for Economic Co-operation and Development and Nuclear Energy Agency

Author/creator: Nuclear Energy Agency, Organisation for Economic Co-operation and Development.

Date: 2000..

Call Numbers:

Record Identifier: 74VK3laEaJ4Z

Language: English

Formats: ebooks

Contents: 1 online resource (190 p.), , , , FOREWORD; ACKNOWLEDGEMENTS; CONTENTS; TABLE OF CONTENTS; EXECUTIVE SUMMARY; PREFACE - SCOPE, OBJECTIVES AND LIMITS OF THE STUDY; PART I - INTRODUCTION TO THE CLAY-WATER SYSTEM; 1. Clay minerals; 1.1 Definition and structure; 1.2 Chemical properties; 2. Interactions between water, solutes and clay; 2.1 Water molecule structure and cation hydration; 2.2 Clay-water interaction; 2.3 Clay-solute interaction; 3. Porosity, salinity and hydration; 3.1 High water content systems; 3.2 Low water content systems; 3.3 Chemical porosity; 4. Organic matter, 4.1 Definition, origins and composition of the organic matter4.2 Properties of the organic matter; 5. Clay environments of interest for the present study; PART II - EXPERIMENTAL METHODS; 1. Field techniques for fluid extraction and characterization; 1.1 Piezometer and borehole drilling; 1.2 Piezometers and boreholes equipment; 1.3 Field techniques for fluid extraction; 1.4 In-situ physico-chemical measurements; 1.5 Field techniques for indirect fluid characterization; 2. Rock sampling, storage and preservation; 2.1 Evidence for artefacts; 2.2 In-situ freezing and coring, 2.3 Noble gases sampling procedure3. On sample laboratory techniques; 3.1 Centrifugation; 3.2 Pressure filtering or squeezing; 3.3 Leaching; 3.4 Distillation technique for stable isotope analysis; 3.5 Direct analysis of water isotope contents; 3.6 Other techniques; 3.7 Organic matter extraction; PART III - PROCESSES AND CURRENT INTERPRETATIONS; 1. Extraction techniques; 1.1 Performances of the extraction techniques; 1.2 Processes related to water and solute extraction; 1.3 Current understanding; 2. Geochemical modelling; 2.1 Dissolution-precipitation; 2.2 Sorption, 2.3 Requirements for geochemical modelling2.4 Computer codes; 3. Indirect approach to porewater composition using geochemical modelling; 4. Conclusions, recommendations and topics for further investigation; 4.1 Chemical studies; 4.2 Isotopic studies; 4.3 Guidelines for benchmark experiments; GLOSSARY AND FREQUENTLY USED ABREVIATIONS; REFERENCES

Publishers: Paris : OECD Publishing, 2000.

Notes: Radioactive Waste Management, 19900325. Description based upon print version of record. Includes bibliographical references (pages 163-185).

Permalink: https://collection.sl.nsw.gov.au/record/74VK3laEaJ4Z

DDC: 621.48/38

MMS ID: 991023942573002626