0

Full Content is available to subscribers

Subscribe/Learn More  >

Characterization of NORM Contaminated Sites at the Syrian Oilfield: Depth Profiles and Leaching Processes

[+] Author Affiliations
M. S. Al-Masri, A. Aba, A. Al-Hamwi, H. Mukallati

AECS

Paper No. ICEM2003-4772, pp. 1563-1567; 5 pages
doi:10.1115/ICEM2003-4772
From:
  • ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation
  • 9th ASME International Conference on Radioactive Waste Management and Environmental Remediation: Volumes 1, 2, and 3
  • Oxford, England, September 21–25, 2003
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 0-7918-3732-7 | eISBN: 0-7918-3731-9
  • Copyright © 2003 by ASME

abstract

Production water containing naturally occurring radioactive materials (NORM) has been collected in unlined artificial lagoons for evaporation in some Syrian oilfields. These lagoons have become highly contaminated with NORM and the situation has urged the operating oil companies in Syria to initiate a remediation program in cooperation with the Atomic Energy Commission of Syria. Part of this national remediation program is to characterize the contaminated soil as a preliminary step for disposal of this waste. Depth profiles of radioactivity have been established and found to be variable from one field to another. Factors that influence this distribution have been evaluated and are presented. Laboratory leaching experiments were performed using six 60-cm cores collected from highly contaminated areas in the oil fields. Results show that 226 Ra is transferred to deep layers via erosion caused by disposal of production water and some heavy rain water that occurred in the past. This erosion process is mainly affected by the mineralogical compositions of the contaminated soil and the particle size distribution. Gypsum present in the soil has increased transfer of 226 Ra from surface layers to deeper layers; water has caused some sink holes (caves) in those soils containing high amount of gypsum. In addition, 226 Ra was also determined in different particle size soil samples before and after leaching experiments where small soil particles sizes were found to be moved downwards by water. Radium was only more concentrated in smaller particle sizes than larger ones in those samples containing low concentration of gypsum. In addition, halite content in the upper soil layers has increased the radium specific activity after leaching since it dissolved in water and moved to deeper layers.

Copyright © 2003 by ASME
Topics: Oil fields

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In