الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
Abstract
The presence of large quantities of TENORM contaminated
soil produced during the extraction and processing of crude oil
at oil extraction sites higher than the radiological reference
levels assigned by the international organizations may cause the
exposure of workers at these sites to unusual radiation hazards.
Therefore, it is a great importance to find suitable, effective, low
cost methods to decontaminate this radioactively contaminated
soil.
Assessing the doses to the workers at these sites is playing
a vital rule in exploring the radiation health risks due to workers
exposure to TENORM radiation.
In this respect, the leaching behavior of the radionuclides
from the TENORM contaminated soil samples by different
concentration of natural leaching solutions were studied. A
series of batch experiments have been conducted to determine
leaching behavior of the radionuclides onto the solutions and the
different factors affecting the leaching process have been
studied.
The aim of the present work is to study the efficiency of soil
washing technique using natural leaching solutions and to assess
the radiological hazards for the workers at oil and gas production
fields.
The main areas of this study were:
1. Collecting samples of radioactively contaminated
soil from different sites of some oil companies.2. A physical separation of the contaminated soil
particles depending on the particle size.
3. Treatment of contaminated soil;
a) Studying the factors affecting the treatment
process.
b) Treatment of the solutions resulting from the
process of remediation of contaminated soil.
4. Elaboration of the obtained data with the possible
predictions of the treatment of waste solutions.
5. Radiological dose assessment due to remediation of
radioactively contaminated soils.
a) Calculation of the occupational exposure by different
exposure pathways. (internal and external).
b) Calculation of the radiological hazards indices.
c) Compare the estimated dose with international guides
in order to recommending the suitable cleanup level.