Thermal desorption-UV photolysis process

Technolt Demonstration of a Thermal Desorption-UV Photolysis Process for Decontaminating Soils Containing Herbicide Orange... 

The thermal desorption/UV photolysis process developed by IT accomplishes substantial volume reduction and toxicity reduction by concentrating the hazardous constituents contained in the soil into a small volume which is easier to treat than large quantities of soil. The process incorporates three steps ... 

Figure 1. Thermal desorption/UV photolysis process concept.

The effectiveness of thermal desorption to decontaminate soil containing HO and of UV photolysis to destroy HO toxic constituents has been demonstrated in bench- and pilot-scale tests. Some additional technical information is needed for a complete evaluation of the process and to provide the basis for design of a full-scale system for on-site remedial action. This project illustrates the requirements for developing and implementing new process technology for solving contaminated-soil environmental problems. Only through such demonstration efforts can more cost-effective and environmentally sound remedial action alternatives be made available. 

---