Method and apparatus for cleaning water using dredged sludge and method for improving dredged sludge

摘要

Method and apparatus for purification of water quality, which has the function necessary for the restoration of water quality including the purification function of nitrogen and phosphorus removal by dredging sludge, and functions necessary for restoration of ecosystems such as iron and silica supply, and method for improving dredging sludge, suitable water area such as coast A pond (1) is constructed in a coastal area, a packed bed (2) dredged in it, a support layer (3), a water collecting layer (4) supporting it are provided, and a bottom water (6) is connected to the bottom of the pond (1) to connect water to the inside and outside, and the vertical water supply (6) is connected to the communication state A pressure receiving portion (62) is provided at the lower end of the vertical tube (61) opposite to the water flow direction of the water flowing through the lower water supply device (5), and the introduced water is supplied from the surface of the filling layer (2), and the filling layer (2) is permeated to thereby purify the water, and the permeable water from the filling layer (2) is lower It flows from the inlet 55 of the water device 5 and is discharged into the water.