Varel-Hohenberge landfill
The landfill Varel-Hohenberge is a former municipal waste landfill of the district of Friesland in Lower Saxony .
location
The landfill site is located east of the city of Varel and north of the Hohenberge district in the middle of agricultural land . It was used from 1974 to the end of 2004 for the disposal of waste from the southern part of the Friesland district with the city of Varel and the communities of Bockhorn and Zetel .
history
Original planning and expansion of the site
The landfill site was initially 5 hectares in size. In 1980 it was enlarged to 10 hectares and in 1992 an 8 hectare area was added. About 5.1 hectares of the extension area were available as storage area. The class II landfill (municipal waste landfill) had a deposit permit until June 1, 2005, but at the end of 2004 it was so filled that no further waste could be deposited.
Landfill security
The 10 hectare old field is sealed at the bottom with a layer of clay. After the end of the dumping of waste, a plastic sealing membrane and earth was applied as a cover, which should secure the landfill and prevent the ingress of precipitation, which would produce leachate on the way through the waste . The extension area was provided with a total of four meters thick, natural and artificial sealing layers made of clay, loam and plastic sheeting. The waste mountain of the old field is around 22 meters high, that of the extension area around 24 meters.
Recultivation and aftercare
After the end of the filling of the landfill areas, the landfill body was covered with earth and recultivated after the main settlement . The surface is adjusted and provided with a multi-barrier seal. The seal consists of a base, leveling and gas drainage layer, a mineral seal, a welded plastic sealing membrane, a drainage layer, a sand protection layer and finally 85 cm of soil for sowing grass. Leachate from the landfill is collected and fed to a biological sewage treatment plant. The leachate pre-cleaned in this way is collected in a 1,800 m³ storage basin before it is sent to the city of Varel for further cleaning, which is just under two kilometers from the landfill in the northeast of Varel on the north end of the Leke.
The landfill gas that arises during the conversion of the organic components of the waste in the landfill is extracted by six gas wells on the old field and 15 gas wells on the new field and used in a combined heat and power plant to generate energy.
After the recultivation work has been completed, the system will be transferred to aftercare. During this period of around thirty years, all possible adverse effects that may arise from a landfill must be monitored. For this purpose, measurements for landfill gas as well as controls of the surfaces and several times a year the groundwater measuring points and seepage water have to be checked. The systems for water purification and gas extraction must also continue to operate.
Re-use of the landfill site
A recycling center is also operated on the landfill site, where, in addition to recyclable waste from private households (bulky waste, electrical appliances, scrap metal, branches and bushes as well as paper), hazardous waste can also be delivered. The only recyclable waste that has now been accepted in the recycling center is taken to appropriate recycling facilities for further treatment. For example, waste paper and cardboard goes to the Varel cardboard factory, metals to the local scrap metal recyclers, tree and shrubbery cuttings go to the Wiefels waste management center's own composting facility, which is operated jointly by the Friesland and Wittmund districts .
Further planning
The district of Friesland was considering filling the space between the two landfill bodies with soil and rubble. Covering the landfill had already started at the time. The German train was interested in the use of landfill and wanted here in the expansion Wilhelmshaven-Oldenburg railway dispose incurred excavation. However, this was refused because Deutsche Bahn did not want to participate in the pre-financing of the reopening.
Web links
- Former Varel-Hohenberge landfill
- Recultivation of the Hohenberge landfill , NWZ TV, May 31, 2012
Individual evidence
- ↑ a b Varel recycling center , district of Friesland. Retrieved July 16, 2013.
- ↑ Landfill Varel-Hohenberge BA III ( Memento from September 7, 2014 in the Internet Archive ), Heilit-Umwelttechnik (PDF, 142 kB).
- ↑ Traute Börjes-Meinardus: Layer by Layer to Weideland , NWZ-Online , July 4, 2013. Accessed July 16, 2013.
- ↑ Hohenberge offers space for rubble , Jeversches Wochenblatt, 23 January 2014.
- ↑ Hans Begerow: Landfill still has space for building rubble , Nordwest-Zeitung, February 4, 2014. Accessed on March 14, 2019.
- ↑ Patrick Buck: Construction rubble dump in Varel remains closed , Nordwest-Zeitung, February 17, 2016. Accessed on March 14, 2019.
Coordinates: 53 ° 23 ′ 55 ″ N , 8 ° 10 ′ 16 ″ E