Abstract: A jet pipe comprises a housing having a suction inlet for the medium to be taken in and an outlet, a conical tubular portion following the suction inlet towards the outlet and a section adjacent to the suction inlet provided with discharge openings arranged peripherally around the tubular interior for a discharge of a highly pressurized medium. When such jet pipes are used for processing contaminated soil, the wear of the individual parts of the jet pipe causes high expenses and non-productive time. In order to reduce wear and non-productive time, the section comprising the outlet openings is formed as a replaceable ring.

Abstract: A soil rinsing apparatus includes a rinsing and sieving element with two successive sieve regions for rinsing and sieving the soil. Water is supplied in order to reduce the soil to slime and to separate harmful substances from the soil. In order to reduce the water consumption and to improve the soil processing quality fresh water is supplied to the first sieve section and water leaving the first sieve section is collected and fed to the second sieve section which precedes the first sieve section.