Skip to main content

SAFETY EVALUATION OF GEOLOGICAL DISPOSAL CONCEPTS FOR LOW AND MEDIUM LEVEL WASTES IN ROCK SALT (PACOMA-PROJECT).

Objective

THE RESEARCH COVERS THE DISPOSAL OF ALL TYPES OF LOW AND MEDIUM LEVEL WASTE IN TWO TYPES OF CAVERNS, MINED BY SOLUTION MINING IN THREE TYPES OF SALTS FORMATIONS. THE AIM OF THE STUDY IS THE COMPARISON OF THE SAFETY OF THESE DIFFERENT CONCEPTS. THE METHODOLOGY USED IS THE SAME AS USED FOR PAGIS. THE WORK WILL BE PERFORMED IN COOPERATION WITH GSF IN BRAUNSCHWEIG (FRG). A PART OF THE ANALYSES WILL BE EXECUTED BY THE RIVM IN BILTHOVEN (NL).

1. BASIC DATA :
DATA WILL BE COLLECTED OF ALL TYPES OF WASTE, INCLUDING THE RADIONUCLIDE INVENTORIES AND THE IMMOBILIZATION MODELS. ALSO THE DATA DEFINING, THE GEOSPHERE AND BIOSPHERE WILL BE COLLECTED.

2. DISPOSAL SITE :
THREE TYPES OF GENERIC FORMATIONS WILL BE STUDIED; A SALT DOME, A SMALL PILLOW AND A SALT LAYER.

3. REPOSITORY DESIGN :
TWO TYPES OF SOLUTION MINED CAVERNS WILL BE STUDIED. IN THE FIRST TYPE THE WASTE IS DUMPED IN THE CAVERN WHICH IS STILL FILLED WITH BRINE WHILE IN THE SECOND TYPE THE WASTE IS DISPOSED AFTER HAVING REMOVED THE BRINE OUT OF THE CAVERN.

4. SCENARIO'S :
THE SCENARIO CONSISTS OF A WATER INTRUSION/EXTRUSION TYPE, WHILE THE EVALUATION IS BASED ON THE BEST ESTIMATE OF INDIVIDUAL DOSIS AND THE PROBABILITY OF OCCURENCE.

5. MODELS :
IN PRINCIPLE, THE COMPUTER CODES TO BE USED IN PACOMA WILL BE THE SAME AS FOR PAGIS. WHERE IT IS APPROPRIATE, GSF AND ECN WILL USE THE SAME MODELS.

6. CALCULATIONS :
BEST ESTIMATIONS OF THE DOSIS TO INDIVIDUALS WILL BE PERFORMED FOR THE DIFFERENT CONCEPTS. THE SENSITIVITY OF THE RESULT WILL BE INVESTIGATED AND A FINAL ASSESSMENT WILL BE MADE.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

ENERGY RESEARCH CENTRE OF THE NETHERLANDS
Address
Westerduinweg 3
Petten
Netherlands