Secondary settling basin for biological wastewater treatment facilities

摘要

The invention forming the floc to improve, and more particularly, section liver oil particles and part by increasing the collision opportunity and frequency of planetary particles and viscous sludge floc precipitation of sludge property related to a secondary settling tank for biological and waste water treatment plant It relates to a secondary settling tank for the biological treatment plant and waste water comprising addition. ; The secondary settling tank for biological and waste water treatment plant according to the invention, the delivery pipe of the sludge mixture coming from the reaction tank in a longitudinal direction to evenly leakage in the width direction of the sedimentation tank pipe shape formed with a slit of a predetermined width and; One end of the inlet tube communicating with said tank and the other end is supplied to the sludge mixture in the reactor is communicating with the middle part of the pipe with the pipe and; The branch consists of a number of vertical baffles installed to be spaced a predetermined distance downstream of the pipe collision between the branch leading to the flow of the sludge mixed liquor flowing out from the slit of the pipe in the vertical direction between the suspended particles and the suspended particle and the viscous sludge flocs by including a flocculation to increase the number of opportunities, and is characterized in that configured. ; Clarifier, floc, aggregation, baffles, settling tanks, sludge, pipe slit