Special purpose association for waste management in the Hanover region
| Special purpose association for waste management in the Hanover region | |
|---|---|
| legal form | Public corporation |
| founding | January 1, 2003 |
| Seat | Hanover , Germany |
| Branch | Waste management |
| Website | www.aha-region.de |
The Zweckverband Abfallwirtschaft Region Hannover (aha) is a municipal waste management company founded on January 1st, 2003 for the Hannover region . Its 1,800 employees collect and dispose of waste and recyclable materials from around 1.1 million people living in the region in around 566,100 households and around 41,100 companies. In the city of Hanover , aha is also responsible for street cleaning and winter services. The majority of the disposal facilities are located on the grounds of the Hanover landfill in the Lahe district .
history
Waste and street cleaning history in Hanover
The history of waste disposal in Hanover began in 1435 when the city council purchased two-wheeled carts to collect the waste from around 3,700 citizens. The fees were 1 shilling per house. In 1821 a police ordinance regulated the removal of household waste. In 1849 a street cleaning fee was levied from the citizens, they had to keep the footpaths clean themselves.
In 1901, garbage collection and city cleaning were completely publicly owned. Private haulage companies had previously been commissioned to do this. The city created several garbage dumps on the outskirts, which were referred to as mountains of dirt . They were located in the List district on Constantinstrasse, between the Kleefeld and Misburg districts on the street An der Breiten Wiese and in Linden on the street An der Alten Leine . As the urban development moved closer and closer to these areas and the Hanover landfill was built in 1937, they were removed. The mound of dirt on Constantinstrasse had the dimensions of about 200 × 200 m and was 15 m high.
In 1927, the garbage disposal began to be motorized, using horse-drawn vehicles up until then. 1937 was established in Altwarmbüchener Moor the central landfill Altwarmbüchener Moor on a Mergelaufschüttung in the construction of the Mittellandkanal had been dug. Since the garbage trucks could not drive into the moor, a reloading station for a field railway was built. Later a road was laid out for the garbage trucks. The garbage that was approached grew until 1982 to an elevation that, at 122 m above sea level, was the highest in Hanover. Before the Second World War , the municipal garbage disposal had over 550 employees.
aha foundation
The Zweckverband Abfallwirtschaft Region Hannover (aha) was founded on January 1st, 2003 by the Region Hannover and the State Capital Hannover (LHH). aha is the public waste disposal authority (örE). The Hanover region has entrusted the function and task of the örE to aha, the LHH the street cleaning and winter service in the city of Hanover.
Since the disposal and city cleaning have always been viewed as a public task, there were city offices in Hanover as early as 1816. At times, these tasks were assigned to the fire brigade , city planning, traffic, civil engineering and finally to the trucking office. In 1991 the trucking office in Hanover was renamed the Office for Waste Disposal and City Cleaning. In 1993 it became a municipal company, the Hanover waste management company , which was only responsible for the city of Hanover. As a result of the establishment of the Hanover region in 2001, aha was created in 2003 as an amalgamation of city and state for the disposal sector. Aha is the successor to the waste disposal company Region Hannover mbH in the region .
activities
aha collects waste and recyclable materials from households and businesses in the Hanover region with refuse collection vehicles . In 2016, 608 kg of waste was generated per inhabitant of the Hanover region. The disposal area with around 2,300 km 2 and the dimensions of around 60 × 73 km is almost as large as the Saarland . In addition to the 3 landfills, aha maintains 21 recycling centers . In addition, the Maschinenring Hannover-Land eV has set up collection points for green waste at over 55 farmers in the region.
In Hanover, aha cleans streets, bike paths and pedestrian areas over a length of 2,000 km with 63 sweepers (2016) and empties around 5,100 waste paper bins. In addition, the winter service is carried out with 146 gritting and clearing vehicles.
With 38 trainees, aha is the largest training company in this branch in Lower Saxony. Every year around 10 to 15 trainees begin the three to three and a half year training courses to become specialists in recycling and waste management, motor vehicle mechatronics , administrative clerks and industrial mechanics .
Waste treatment plants
aha has a large part of the collected waste treated by its (100%) subsidiary waste treatment center Hannover GmbH (abz) in Lahe. The facility on the site of the central landfill was put into operation in 2000 and was part of Expo 2000 .
The collected residual waste is processed in the mechanical-biological residual waste treatment plant. The waste is classified into two fractions, the coarse fraction with a high calorific value (around 45%), which is recycled in the waste incineration plant of EEW Hannover, and the fine fraction, which is installed after passing through the biological residual waste treatment plant (fermentation, rotting) at the Kolenfeld landfill . The facility on the grounds of the Hanover landfill was put into operation in 2000.
The system consists of:
- Mechanical residual waste treatment plant
- Biological residual waste treatment plant
- Organic waste composting plant
- Thermal waste treatment (privately owned facility)
-
Hannover landfill in Lahe with
- North body 1937–1982
- South body 1980–2005
Other aha systems are:
- Burgdorf landfill with
- Composting plant
Incineration
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A thermal waste treatment takes place since 2005, after appropriate pre-treatment in the waste incineration plant in Hanover-Lahe by the EEW - Energy from Waste Hannover GmbH. In contrast, a citizens' initiative was formed in 2001 by the local residents who raised 2,000 objections. The criticism was directed against waste tourism, as only a small part of the incinerated waste comes from Hanover. Also were high pollutant - emissions feared because the installation modernster filter technology was not provided. In the course of the test runs at the beginning of 2005, an incident occurred in which dust and ash residues were distributed in the area. Since then, no further incidents have become known. Aha has secured additional capacity for waste incineration through contracts with the operators of other waste incineration plants. These are EEW with the Helmstedt waste incineration plant and Enertec in Hameln.
Subsidiaries
- Waste disposal company Region Hannover mbH (arh) with disposal services for industry and trade
literature
- Franziska Saniter, Heike Köhn: Clean Times - A journey through time in ten stages through 100 years of municipal waste collection and city cleaning in Hanover , Hanover 2001
- aha Annual Report 2016, Hanover 2016