Mansie central landfill

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The central landfill in Mansie is the disposal center of the Ammerland district .

General

The central landfill in Mansie is operated by the waste management company of the Ammerland district in Westerstede . In addition to the landfill, there is a mechanical waste treatment plant and, until the beginning of 2012, the Ammerland composting plant . At the location u. a. Household waste and commercial waste similar to household waste, bulky waste and construction site waste as well as various recyclable materials and waste containing harmful substances are accepted.

location

The landfill is located south-west of Westerstede and north of the eponymous district of Mansie-Lindern on land that is mainly used for agriculture and tree nurseries . In the southeast it borders on Landesstraße 820 between Westerstede and Ocholt, in the northwest on the Große Süderbäke, which forms the Aper Tief with the Große Norderbäke near Apen .

The landfill site is in the East Frisian-Oldenburg Geest at an average elevation of 3 m above sea level. NN. The subsoil is formed by a 5 m thick layer of boulder clay ( clay ), which is covered by drifting and alluvial sands. Underneath there is a 50 m thick barrier layer made of Lauenburg clay .

history

The landfill goes back to the location of the city of Westerstede, which operated the landfill and has deposited its waste here since 1969. In 1975, the Ammerland district was given responsibility for the disposal of the landfill. In addition to the waste from Westerstede, the waste from the communities of Apen, Bad Zwischenahn and Edewecht was also deposited here. Since 1984, the waste from the communities of Rastede and Wiefelstede has also been deposited on the landfill, making it the central landfill for all six communities in the Ammerland district.

The landfill today consists of two adjacent areas, the Mansie I and Mansie II landfill.

Mansie I

The Mansie landfill has been operated as a landfill since 1969. It extends over an area of ​​around 10  hectares . The approved height of the garbage mountain is 32 m above sea level. NN . Waste was deposited on the landfill until 1997. The amount of waste is around 1.2 million m³.

The landfill was secured and recultivated in several sections between 1993 and 1998 . For this purpose, the up to 30 m thick landfill body was filled and sealed. In 2005 the landfill was transferred to the aftercare phase.

The garbage dump of the Mansie I landfill is now green. On a 25 m high and 80 m wide area, 2,200 summer and rose spars were set, which form the lettering "Mansie".

Landfill gas power plant

1989, a landfill gas power plant built on the landfill Mansie I to the body in the landfill in the reaction of the organic constituents of the waste resulting landfill gas to use. The methane-containing gas was extracted via gas wells and converted into electricity in the landfill gas power plant .

The landfill gas power plant remained in operation until 2010 when gas production in the landfill came to a standstill after the biological conversion processes had largely been completed. By then, around 32 million m³ of landfill gas had been collected and converted into electricity, which enabled around 38 million  kWh of electrical energy to be fed into the power supply network.

The operator of the power plant, which was dismantled in 2011, was EWE AG in Oldenburg . To avoid the escape of residual gas, 34 methane oxidation windows were installed on the surface of the landfill.

Mansie II

The Mansie II landfill was created from October 1989 to December 1991. Like the Mansie I landfill, it extends over an area of ​​around 10 hectares. The landfill area is 8.4 hectares in size. The approved height of the garbage mountain is also here 32 m above sea level. NN. The landfill can hold around 1.05 million m³ of waste. The capacity of the landfill is expected to last until the end of 2020.

Waste has been mechanically pretreated since 1992 in order to better utilize the landfill volume and to reduce the settling behavior of the waste. Since 1998, most of the waste has only been deposited after mechanical-biological pre-treatment. For this purpose, household waste and commercial waste similar to household waste was shredded, placed in chimney flue rotting heaps and dumped after a 12 to 15 month rotting period. Since since June 2005 only waste that complies with the Waste Disposal Ordinance has been allowed to be dumped , the amount of waste that can be disposed of has decreased drastically. Since it was foreseeable that the landfill could not be filled with waste from the Ammerland district in economically sensible periods of time, it was agreed that the landfill would also be backfilled by the neighboring municipalities of the City of Oldenburg, Oldenburg district and Aurich district . Since January 2004, waste from the city of Oldenburg has therefore been deposited on the Mansie II landfill after being pretreated in the mechanical-biological waste treatment plant in Wiefels . Since 2005, the waste to be landfilled from the Ammerland district together with waste from the Aurich and Oldenburg districts has been pretreated for six to seven weeks in the mechanical-biological waste treatment plant in Großefehn in Rottetunneln, with extensive degradation of the organic matter. The waste is then deposited in the Mansie II landfill.

Seepage water

The seepage water exiting the landfill is collected in a seepage water storage tank with two basins with a capacity of 2,800 m³ each. From there it is continuously fed via an upstream seepage water purification system, which has been in operation since February 1992, to the sewage treatment plant in the city of Westerstede , about 1.5 km away . Around 100 m³ of seepage water is cleaned every day.

Others

Hospital and asbestos cement waste is in the landfill Mansie II since March 1992 monopoly Dern deposited separately.

Web links

Individual evidence

  1. ^ The mechanical waste pretreatment plant MA Mansie , waste management company in the district of Ammerland (PDF file, 96.5 kB). Retrieved February 14, 2018.
  2. ↑ a b Data on waste management and the Mansie central landfill , Ammerland district (PDF file, 514 kB). Retrieved February 14, 2018.
  3. ^ The former Ammerland composting plant , waste management company in the Ammerland district (PDF file, 96 kB). Retrieved February 14, 2018.
  4. ↑ a b c d e f Mansie landfill , Ammerland district (408 kB). Retrieved February 14, 2018.
  5. ↑ a b The disused old landfill Mansie I , waste management company in the district of Ammerland (PDF file, 113 kB). Retrieved February 14, 2018.
  6. ↑ a b c The former Mansie landfill power plant , waste management company in the district of Ammerland (PDF file, 40 kB). Retrieved February 14, 2018.
  7. ^ The Mansie II landfill , waste management company in the district of Ammerland (PDF file, 88 kB). Retrieved February 14, 2018.
  8. ↑ History , MKW - material cycle and compost management. Retrieved February 14, 2018.
  9. ↑ The leachate purification system at the Mansie landfill site , waste management company in the Ammerland district (PDF file, 72.5 kB). Retrieved February 14, 2018.
  10. ↑ Data on waste management and the Mansie central landfill , waste management company in the Ammerland district (PDF file, 27 kB). Retrieved February 14, 2018.

Coordinates: 53 ° 14 ′ 13 ″  N , 7 ° 54 ′ 14 ″  E