To provide a filter press occupying a reduced area, an apparatus for treating waste soil, which is mounted on a small transport vehicle, and the vehicle for treating waste soil.

The apparatus 100 for treating waste soil includes a flocculation tank 1 for flocculating solid contents in the waste soil and producing flocks, a sedimentation tank 2 for sedimentation separation of the flock supplied from the aggregation tank 1, and a filter press 3 for filtering the flocks separated in sedimentation tank 2 through filtering bodies 33 and 34 and separating solid and liquid components, and the sedimentation tank 2 is disposed below the flocculation tank 1. The vehicle for treating waste soil is provided by mounting the apparatus 100 for treating waste soil on a loading platform of the transport vehicle.