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International Journal of Environment and Sustainability, 2016, 5(1): 46-50  49

 Figure 3: Sediment containing oil residue left    heavily polluted with the crude oil, posing a
   over from the Gulf War oil spill (1991) and     serious threat to the environment and flora and
                                                   fauna in the sea. Recently, some companies have
 clean sediment deposited during the following     been assigned projects related to recovery of
                         12 years.                 the flora and fauna using some specific
                                                   techniques. The techniques adopted for resto-
Figure 4: The shoreline impacted by the Gulf       ration of the flora and fauna requires excavation
                    War Oil Spill.                 of the contaminated soil along the shoreline for
                                                   forming channels so that the seawater can move
The shoreline spanning around 755 km up to         back and forth through these channels during
the industrial city of Jubail in Saudi Arabia was  high tides. As a result, a huge quantity of the
                                                   contaminated spoil is being generated, which
                                                   cannot be dumped in landfills without proper
                                                   treatment.

                                                   The environmental pollution, which runs from
                                                   Kuwait beaches to the shore borders of Saudi
                                                   Arabia and is located near Jubail industrial area,
                                                   is dangerous to the environment due to crude
                                                   oil, as depicted in Figure 4.

                                                   As a result, the possibility of dumping the spoils
                                                   in landfills is ruled out because of its huge
                                                   quantity (approximately 500,000 m3) and also
                                                   due to the complexity of the contaminated
                                                   sediments. Therefore, it is essential to explore
                                                   the feasibility of treatment of spoils using S/S
                                                   technology for possible reuse of the treated
                                                   sediments and the ability for engineering
                                                   application such as using them as sub-base or
                                                   base material for road construction, back fill, or
                                                   construction material.

                                                   Ba-Naimoon (2013) studied the possibility of
                                                   treatment of spoils using S/S technology to
                                                   ensure either the safe disposal of the treated
                                                   spoils or utilization of the treated spoils for
                                                   engineering applications such as formation of
                                                   sub-base or base courses in road construction.
                                                   Three levels of the oil-contaminated soils (high,
                                                   medium, and low) were collected from different
                                                   locations and characterized using different
                                                   laboratory tests. For S/S treatment, Portland
                                                   cement and different cementitious waste
                                                   materials, such as Cement Kiln Dust (CKD) and
                                                   Limestone Powder (LSP), were used as alter-
                                                   native stabilizers. As a result, Ba-Naimoon
                                                   (2013) reported that it is possible to use the oil-
                                                   contaminated soils as sub-base material in
                                                   flexible and rigid pavements, as shown in Figure
                                                   5.

                                                   Science Target Inc. www.sciencetarget.com
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