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TREATMENT OF OIL CONTAMINATED SOILS IN THE NIGER DELTA USING MOBILE THERMAL DESORPTION SYSTEMS
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THE OIL AND GAS PRODUCING ACTIVITIES IN THE NIGER DELTA FREQUENTLY RESULT IN SPILLS OF LARGE QUANTITIES OF CRUDE OIL IN THE ENVIRONMENT.
THESE SPILLS TEND TO RAPIDLY SPREAD DUE TO THE CLIMATE AND THE POROUS NATURE OF THE SOIL IN THE REGION. A NUMBER OF SPILL SITES EXIST WHICH ARE OVER 1 SQUARE KILOMETER IN AREA AND SEVERAL YEARS OLD. CURRENT TREATMENT OF SUCH SPILLS IS USUALLY A COMBINATION OF MOP-UP AND OPEN BURNING. THIS LEAVES A SCORCHED AREA FROM WHICH OIL OOZES OUT DURING THE HOT DAYTIME AND ON WHICH NO VEGETATION CAN THRIVE. THE THECNOLOGIES THAT ARE AVAILABLE FOR ON-SITE TREATMENT OF SUCH CONTAMINATED SITES INCLUDE THERMAL DESORPTION, INCINERATION AND BIOLOGICAL TREATMENT. EACH METHOD HAS ITS ADVANTAGES AND DISADVANTAGES. HOWEVER, THE BIGGEST DISADVANTAGE EXISTS WITH THE OWNERSHIP AND AVAILABILITY OF THE TECHNOLOGY. THE SECURITY STATUS OF THE NIGER DELTA REGION IN THE PAST TEN YEARS HAVE BEEN POOR. EXPARTRIATES WERE FREELY KIDNAPPED FOR HUGE RANSOMS. THIS MADE IT DIFFICULT FOR FOREIGN TECHNOLOGIES TO BE MOBILISED TO THE REGION FOR FUNCTION. IT IS AGAINST THIS BACKGROUND THAT WE DEVELOPED THE NIGERIAN MOBILE THERMAL DESORPTION SYSTEM FOR THE REMEDIATION OF SUCH SITES. THE SYSTEM DEVELOPED WAS FINE TUNED IN A DOCTORAL WORK AT CRANFIELD UNIVERSITY, ENGLAND, IN THE DEPARTMENT OF PROCESS SYSTEMS ENGINEERING. IT IS SIMPLE, ROBUST, RUGGED AND DESIGNED TO SUIT THE TERRAINS AND CONSTRAINTS OF THE REGION. THE SYSTEM GENERATES ITS OWN FUEL FOR ALL THE OPERATIONS AND WILL ...
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