Scum baffle in secondary sedimentatin basin

摘要

The present invention was devised to improve the shortcomings of the scum baffle device for preventing scum spillage of secondary sedimentation batteries in sewage treatment plants. 9c), a scum baffle support 9d, a parcel water supply pipe 9e, a rising flow rate damping plate 10, and the like.;The treated water introduced into the secondary sedimentation battery 1 through the treated water inlet pipe 2 performs a precipitation process, and the sludge collected is driven by the drive motor 3 and the drive shaft 4 by the sludge collector 5. While being rotated and stored in the sludge storage tank (6) located at the bottom of the secondary settling battery (1) is discharged to the outside through the sludge discharge pipe (7).;In order to prevent the outflow of the floating scum generated during the precipitation process, a fine wood screen 9b, which is a scum leak prevention film, is installed at the front of the outflow ware 9, and the scum caught therein is removed using a scum skimmer.;Since the fine neck screen 9b uses ultrafine screens, the floating scum has cohesive properties, so it is difficult to leak through the scum micro screen, and sometimes the floating scum blocks the pores of the micro neck screen 9b. When a phenomenon occurs, the defoaming water nozzle 9c is supplied to pierce a blocked state.;In particular, in order to reduce the rising flow rate of the treated water to prevent the rise of the microparticles in the precipitation process, the rising flow rate damping plate 10 was installed, and the amount of floating scum was significantly reduced during the installation. .