| 摘要 |
<p>In a treatment plant for wastewater, there are provided, in a shared housing 2, a chamber 3 for a trickling filter 4, a final clarification tank 10 and, separated from these by a wall 15, a pump chamber 5. In the final clarification tank 10 which is disposed immediately under the chamber 3 for the trickling filter 4, there is provided a pump 25 from which there departs a line 26 which leads to a digestion chamber which is connected upstream of the trickling filter 4. From the final clarification tank 10 wastewater flows through an overflow 17 in the wall 15 into the pump chamber 5. In the pump chamber 5 there is provided a pump 28 from which a line 29 departs which leads to a soil filter chamber. In this line 29 is provided a three-way valve 30 from which a pipe branch 31 departs which ends above the trickling filter 4. <IMAGE></p> |
