IN-SITU VITRIFICATION





•            1. Definition and basic facts



•            2. Principle of the method



•            3. Usage and results



•            4. Limitations and future

                                           Vitrification

Ø A process of converting a material into a glass like solid (usually run in special facility)

                                       Basic facts about ISV

•            Relatively new method



•            Pacific Northwest National Laboratory



•            Applicable to contaminated soils, waste, etc



•            Tested in USA, Japan and Australia

                                      Principle of the method

•            Electric melting of contaminated soils

                                      Principle of the method

                                         Usage and results

•            Primarily for treating contaminated soil

•            Primarily for radioactive contamination

•            Applicable also for organic/inorganic contaminants

•            Low risk for the environment

                                      Limitations and future

•            Reach of conventional ISV

•            High moisture, man-made or natural borders

•            Dissolved gas      pressure problems

•            New technical improvements

                                              Summary

•            ISV is applicable to all classes of contaminants and its mixture



•            ISV is primary technology for treating soil



•            ISV is relatively safe and represents low risk to the environment



•            ISV have some usage limitations