What grants the maximum personnel safety is its “closed loop” operation system. Sludge crushing is reached by the mechanical action performed by special rotating nozzles (called “Jet Washers”) that, installed on the tank roof, direct high-pressure jets on all the tank surface. This allows a chipping action of the solid part, that scatters and dissolves, thanks as well to the chemical action given by the fresh oil towards the sludge.
After a proper percolation, the fluidized (mixture between the hydrocarbon contained in the sludge and the “fresh” oil) is given back to the Client, generating additional value and cost saving.

While liquefying, hydrocarbon gets separated from sludge thanks to 3 combined actions:

• Mechanical: given by the 5/6 bars of the oil jet from the jet washers;

• Chemical: given by the lower specific weight;

• Physical: by heating the oil, viscosity is reduced.

Inerts remaining in the tank bottom after S.R.S.® operations are usually made of 1/3 of water, 1/3 of sediments and 1/3 of hydrocarbon.

The high percentage of hydrocarbon recovery allow the operators to enter the tank without any health risk, as no trace of hydrogen sulphide remains.