DETERMINATION OF SILT ACCUMULATION IN REFINERY’S WATER TANKS

We were appointed by Enviroserv to determine the volume of silt that had accumulated in Sasolburg refinery’s main water tanks over 10 years.

The survey was conducted using a sonar device and GPS receiver mounted on a special pontoon craft.

As-built design drawing of the reservoirs were used to calculate the volume of each reservoir and the volume of water above the “measured” sand surface subtracted to infer the volume of sand in each tank.