References | water supply and sanitation
| Stormwater treatment by means of a retention soil filter for the drainage of the federal highway B31 near Kirchzarten / Germany |
 Retention soil filter
DESCPRIPTION OF PROJECT The Federal Highway B 31 Ost partly running through water protection zones (category II) and the receiving watercourse being classified as worth protecting, more advanced methods became required for the treatment of the surface drainage water from these areas. As a result of a detailed comparative analysis, a soil filter preceded by a settling tank was defined as the most appropriate solution for stormwater treatment. The chosen design was for that of a retention soil filter which provides for the water to be evenly distributed via several pipes over the soil filter surface and to infiltrate slowly through a 0.75-m-thick substrate, thereby undergoing a biological and mechanical treatment. The filter is protected from clogging through the planting of reed. PROJECT COMPONENTS AND TECHNICAL DATA
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BRIEF DESCRIPTION
Planning and design of a retention soil filter for the treatment of surface runoff from the Federal Highway B 31, including conveyance lines
CLIENT
Regional Administration Board, Freiburg
FINANCING
Regional Administration Board, Freiburg
SCOPE OF SERVICES
75
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