Patent ID: 7306057
Filing Date: 2007-12-11
Classification: B01D,E21B

Abstract:
1. A method for treating material, the material including a first liquid component and solids, the method comprising introducing material including a first liquid component and solids to a system for remediation, the system including a thermal treatment system, a quench system, a weir tank system and a condensing system, feeding a liquid slurry of the material to the thermal treatment system and heating the liquid slurry therein producing heated discharge solids and a discharge stream with the first liquid component and solids therein, discharging the heated discharge solids from the thermal treatment system, feeding the discharge stream to a quench system, cooling the discharge stream in the quench system producing a cooled discharge stream, feeding the cooled discharge stream to the weir tank system, the weir tank system having a clean side and a dirty side, the cooled discharge stream fed to the dirty side of the weir tank system, the dirty side of the weir tank system comprising a first compartment with an under weir, an over weir, a first top weir and a second top weir, the under weir on a first side of the first compartment and the over weir on a second side of the first compartment spaced-apart from the first side, a second compartment adjacent the over weir, and a third compartment adjacent the under weir, the first top weir above the first compartment and the second top weir above the second compartment, flowing a first stream with oil and oil-laden solids over the over weir into the second compartment and from the second compartment flowing oil over the second top weir to the clean side of the weir tank system, flowing a second stream with oil and solids out from the second compartment for further processing, flowing oil under the under weir into the third compartment and then flowing oil over the first top weir into the clean side of the weir tank system, and flowing oil from the clean side for re-use.