| 摘要 |
The present invention concerns a floatation clarifying/flocculating procedure for purifying liquid, in which particles of impurities present in a liquid to be purified or impurities dissolved in the liquid which have been converted into particle form with the aid of flocculating chemicals, are separated from the liquid to be purified and carried to the surface of the liquid, to form thereon a sludge bed. The sludge bed is conducted out through a sludge trough to a sewer or equivalent, and flocculating chemicals are then added to the remaining liquid thus already at least partially purified, so that the chemicals form dirt particles with the impurities still present in a dissolved state but which have not yet been removed from the remaining liquid. The liquid or water flocculated in this manner is conducted out through a discharge aperture and towards and additional clarifying procedure in which the dirt particles are separated and the thus-purified liquid can be taken into use or conducted back into the environment as regarding, e.g., residual waters. Floatation clarifying and flocculating are performed in the same floatation clarifying/flocculating basin. The present invention is also directed to the device for carrying out this floatation clarifying/flocculating in a single basin. |
