Sewage treatment plant for biological wastewater purification

摘要

A sewage treatment plant 1 for biological wastewater purification has a clarifying tank 3 holding a filter body 9 through which wastewater flows and which is colonized by purification plants 10, which clarifying tank, in the direction of flow is subdivided into individual tank sections 13, 14 by means of transverse walls 11, 12 at a distance from one another, the transverse walls 11, 12 having flow orifices 15, 16 for the flow connection of adjacent tank sections 13, 14, which orifices are disposed alternately at the top or bottom, distributed over the tank width. To ensure lasting good clarifying action, the clarifying tank 3 is connected on the inlet side to a separation ditch 2 and opens on the outlet side preferably into a clearing pond 4. The first tank section 131 which passes over via upper flow orifices into the second tank section 14 and the separating ditch 2 are connected to one another in the bottom region by outlet pipes 8 of the separation ditch 2 and guide plates 17, 18 are disposed upstream of the flow orifices 15, 16 of the transverse walls 11, 12, which guide plates each extend from the transverse walls 11, 12 in the direction of flow at an angle upwards or at an angle downwards. IMAGE