The aim of the project is to develop and verify a method of an in-situ thermal desorption with use of microwaves. One of the results would be a technical-economical study which would be based on results obtained from pilot tests of new microwave technology and also from comparision of other methods of in-situ thermal desorption as electrical heating, steam enhanced extraction or gas heating. Of course, part of the output would be a patent and utility models of new technology and constructed technical parts as waveguides. To present the results of the project is also one of the project's aims. If other companies and specialists who deal with enviroment protection know about the new technology and it's benefits, the expected gains will be reached.