| 摘要 |
The present invention provides a water plant treatment system (5) in which the nitrogen and phosphorus components and other contamination substances are removed from the water which has been treated biologically by the conventional system. The water plant treatment system (5) according to the present invention includes a distribution section (51) for temporarily storing the incoming waste water to distribute it to the next stages, a first section (52) for filtering the waste water of the distribution section by means of a filtering layer (104a), and for eliminating the nitrogen and phosphorus components by the water caltrops of the filtering layer (104a), a second section (53) with water hyacinths planted therein, for purifying the water coming from the first section (52), a third section (54) with great duckweeds planted on the water surface thereof, for purifying the water coming from the second section (53) and a fourth section (55) with a filtering layer (104a) disposed therein and with water caltrops planted therein. |
