Vorhorngraben
| Vorhorngraben | ||
.jpg) The mouth of the Vorhorngraben (left) into the Schießplatzgraben (coming from the right, continuing upwards) |
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| Data | ||
| location | Hamburg-Lurup | |
| River system | Elbe | |
| Drain over | Firing range ditch → Mühlenau → Kollau → Tarpenbek → Alster → Elbe → North Sea | |
| source | Vorhornweg south of 53 ° 35 '23 " N , 9 ° 52' 48" O |
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| confluence | With the firing range trench coming from the southeast, continued as firing range trench Coordinates: 53 ° 35 ′ 23 ″ N , 9 ° 53 ′ 0 ″ E, 53 ° 35 ′ 23 ″ N , 9 ° 53 ′ 0 ″ E
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| length | 220 m | |
| Big cities | Hamburg | |
| Navigable | No | |
The Vorhorngraben is a 220 meter long trench in Hamburg-Lurup .
course
The Vorhorngraben rises south of the Vorhornweg and runs almost parallel to it. After 220 meters it joins the firing range ditch. The trench then continues as a firing range trench.
Rainwater treatment system
A rainwater treatment system has been filtering the street wastewater since 2019, which previously flowed unhindered from Luruper Hauptstraße and Elbgaustraße into Vorhorngraben. The system cost € 1.1 million. The street wastewater first undergoes mechanical pre-treatment and then biological treatment in a reed-planted basin. The water cleaned in this way is seeped into another basin for groundwater recharge. The catchment area for this plant is approximately 37.6 hectares.
Individual evidence
- ↑ a b Vorhorngraben on Google Maps. Retrieved July 2, 2020 .
- ↑ Hamburg: rainwater treatment plant for street sewage in operation | EUWID water and wastewater. Retrieved July 2, 2020 .
