The multistage filteration apparatus of filtering river water by drived water head and poliethylene filtering media

摘要

The present invention relates to a multi-stage water tank filtration stream purification apparatus installed adjacent to a river beam to generate a water head difference, and having two or more tanks filled with a sedimentation tank and a polyethylene filter in which the river water first flows.;Purification apparatus of the present invention, the inflow chamber 11, the river water flows from the beam (R) of the river; A sedimentation tank 12 into which river water flows from the inflow chamber 11; A first filtration tank 13 into which river water flows from the immersion tank 12; A second filtration tank 14 into which river water flows from the first filtration tank 13; A polyethylene filter member (15) filled between each of the upper and lower porous plates connecting the vertical guide wall and the rear partition wall provided in the respective filter tanks; An air supply line (16) for injecting air into the respective filtration tanks; A backwash water transfer line (17) for recovering the contaminated river water from each filtration tank to the immersion tank (12); Sludge drawing transfer line 18 for discharging the sediment accumulated on the bottom surface of the immersion tank 12 and each of the filtration tanks 13 and 14, the power is driven by polyethylene ring and water head as the polyethylene media There is a technical feature of the present invention in flowing river water without necessity.;The multi-stage water tank filtration-type river purification device of the present invention reduces the operating cost by the inflow, filtration and discharge of river water by the water head without any power, and the specific surface area and the porosity of the media are greatly improved to improve the purification efficiency. In addition, there is an advantage that can be reduced to about 1/2 the size of the water purification facility.