| 摘要 |
<p>A purification plant (10) for purification of waste water separated from sludge, comprising a buffer chamber (16) with a controllable first flow restricting device (17), a flow control unit (29), a purifier (12) with a closed purifying bed (14) and an outlet (19) for purified water. The flow restricting device (17) is arranged to control the flow of waste water from the buffer chamber to the purifier (12). To make it possible to control the contact time between the waste water and the purifying bed (14), the purification plant (10) further comprises a second flow restricting device (31) at the outlet (19) of the purifying bed (14). <IMAGE></p> |
