APPARATUS FOR REMOVAL OF NONPOINT SOURCE POLLUTION USING SCREENING AND CENTRIFUGAL FORCE

摘要

An apparatus for removing non-point pollution sources is provided to prevent a screen from being blocked, thereby facilitating the management of the screen, by disposing open type protrusions of the screen oppositely to a flow direction of fluid. An inlet pipe(10) is formed at one side of a chamber(60). A spiral flow type screen(20) is installed within the chamber, wherein the screen has open type protrusions arranged regularly. A drainage path(30) is positioned between the chamber and the screen. An outlet unit(40) is formed at the other side of the chamber. A solid collector(50) is positioned below the screen. The open type protrusions are protruded outwardly from the screen. The screen has a plane portion at a region where the screen is tangentially contacted with the inlet pipe.