Integrated soil and fluid decontamination system

Details Integrated soil and fluid decontamination system Integrated soil and fluid decontamination system

1996-08-14

1998-09-29

Popovics, Robert

Liquid purification or separation

Processes

Separating

210774, 210779, 210DIG5, 210805, 34377, 34378, 34379, 110346, 134 251, 405128, B01D 3700

Patent

active

058142347

ABSTRACT:
A method for decontaminating both soil and mixed waste water polluted by hydrocarbons in a single integrated process is disclosed. Contaminated mixed waste fluid is separated into water and hydrocarbons which are then used in the thermal decontamination of polluted soil through the volatilization of hydrocarbon contaminants. Flue gases containing the volatilized hydrocarbons from the thermal soil decontamination undergo oxidation. Thermal energy from the soil decontamination process and the thermal oxidization of the flue gases can be recovered and used to facilitate the separation of hydrocarbons and water. In this integrated system, every by-product of each step is either decontaminated or consumed in another operation of the system. Energy conservation within this system is also realized by the use of heat exchangers to transfer energy from where it is created by the process to where it is used elsewhere to enhance efficiency within the process. It is possible to run this apparatus and process so that the only outputs of this system are decontaminated soil and clean exhaust gases.

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