| 摘要 |
<p>A reactor (1) for the cleaning of contaminated materials (14) comprises a container (3) and a hood (28) sealable thereon. The container has a perforated false bottom (11) on which is laid a filter layer (15) and the material (14) to be cleaned. A pipe system (16) extends through the material, through which compressed gas can be supplied to aerate the bed. A spray head (42) in the hood (28) enables the bed to be wetted. Through a pipe (23) the space (12) below the false bottom (11) can be subjected to pulses of pressurised gas or a reduced pressure can be created there. The hood (28) includes an outlet (37) for gases. Contaminated liquid is withdrawn through an outlet pipe (13). The reactor can be manoeuvred easily by the provision of rollers (25), lifting hoops (26, 38, 39) and chain cleats (27). <IMAGE></p> |
