Zakład Zagospodarowania Odpadów w Poznaniu sp. z o.o.
Waste Management Company in Poznań, Poland
POZNAŃ
The fifth most populous city in Poland (550.7 thousand Inhabitants) and seventh in terms
of area (262 km ²). Poznan is linked economically and in communication with the
surrounding municipalities Poznań district, is with them Poznań agglomeration, which,
together with the municipalities Oborniki, Skoki, Szamotuły and Śrem creates
Metropolitan Poznan inhabited by more than 1 million people.
Waste Management Company in Poznan
• Waste Management Company in Poznan (limited liability company) was
established as a result of the transformation of local government
budgetary establishment under the name: Waste Management Company
in Poznan by liquidation in order to create commercial companies.
• The company perform the tasks of the City of Poznan in the management
of municipal waste On the basis of Resolution No. XXXI/452/VI/2012
Poznan City Council of 22 May 2012.
Communes’ Union "Waste Management of Poznań Agglomeration is created by 9
adjacent cities and municipalities:
The task of the of the Communes’ Union „ Waste Management of Poznań Agglomeration” is to organize
a unitary waste management in the Union.
The Waste Management Company meets the needs related to the natural environment protection, natural
resources protection and needs of the city inhabitants.
Main actions conducted by the ZZO:
Management of waste dump sites.
Current operation and final recultivation of a landfill.
Production and sale of electricity and heat made from biogas.
Conducting selective collection and segregation of waste.
Recycling, selection and sale of waste.
Reception of selectively collected waste.
Collection of hazardous, non-hazardous and inert waste.
Collection and receipt of waste electric and electronic equipment.
Processing of biodegradable waste.
Running Selective Municipal Waste Collection Point
Projects contributing to maintenance of order and tidiness in the city.
Interventions in remediation of consequences of road accidents notified by the City Guards or
Police.
Interventions in removal of contamination and dead animals from public places.
Conducting ecological education.
Mobile Selective Municipal Waste
Collection Point
Entrance to the landfill
The ZZO conducts activities related to the natural environment protection and especially consisting in
the management of the landfill in Suchy Las and its current operation as well its final recultivation. The
company also conducts collection and selection of hazardous and other waste and receives
biodegradable waste.
Glinowieckie Lake
Morasko Reserve
Retention tank
Natura 2000
P-1
Area- 7 ha
P-2, P-2A
Area- 5,4 ha
P-3
Area- 3,06 ha
Waste Disposal Site in Suchy Las
Entrance to the landfill
The waste disposal site in Suchy Las is located on the northern border of Poznań and the municipality
of Suchy Las, along the northern slope of the Morasko Mountain. In the north and east, the Mountain
is delimited by the Biedrusko military grounds. The Morasko Meteorite Nature Reserve is located at a
distance of ca. 1000 m from the waste site. The Waste Disposal Site in Suchy Las also borders on the
Biedrusko Special Area of Conservation - Natura 2000. The Poznań- Piła national road no. 11 runs
about 2000 m from the site.
Waste Disposal Site in Suchy Las
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The Waste Disposal Site (WDS) in Suchy Las has been in operation since 1984.
•
Works in accordance with the integrated permit obtained.
•
Storage area is 61.49 hectares, of which:
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operated cell of 3.06 ha
reclaimed and closed cell-24.0 ha
lodging-designed cell 6.8 ha
surface facilities associated with the technical, administrative, social and
infrastructure and green area-14.4 ha
• provision of land for facilities related to waste management-13,2ha
•
Target capacity 5.9 million m3 of landfill waste.
•
Deposited 4.75 million m3 of waste (since 1984 until December 2012.)
•
The expected life of the landfill 2028 years.
According to classification it is used for the disposal of waste other than hazardous or neutral waste. The
dumpsite is designed for the collection of household waste and waste produced by other sources, not
containing any hazardous substances.
In January 2007, the Waste Disposal Site was granted an integrated permit. It covers a total area of 61,49
ha, of which more than 60% is taken up by waste disposal cells and by reclaimed cells.
The target capacity of the Disposal Site is 5.9 m m3 of waste, and by 2009, 4.75 million m3 of waste was
deposited in the waste cells. The disposal site is to be operated till 2028, but the waste incineration in
Poznań planned for 2016 will considerably limit the amount of waste disposed at the site.
P3 Cell - operated
- commissioning of June 13, 2010
- cell surface of 3.06 ha
- cell capacity- 370000m3
- Seal the bottom and slopes cells
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Landfill layers with a thickness of 1.5 - 2.0 m
The insulating layer with a thickness of about 20 cm.
Building degassing wells.
The maximum height of the landfill of waste is 116.5 meters above sea
level.
P2 Cell- reclaimed
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cell surface 5,4 ha
operation carried out by 8 years
the end of operation June 12, 2010
amount of waste disposed 1025000mg
the cover reclamation thickness of 1,1 m
sandy aeration layer -0.2 m
sandy-loam soil -0.7 m
fertile soil (humus) - 0.2 m
planting vegetation
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degassing cell
-degassing wells
-collective biogas pipelines
-collective biogas stations
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drainage pipe for surface water
Gas extraction system
In 1996, the Waste Disposal Site in Suchy Las put into service the first in Poland landfill gas extraction
system used for electric power generation. One of the reasons for introducing this system was to
increase the utilisation of energy from renewable energy resources and contribute to lower
degradation of the natural environment. In the beginning, degasification was carried out only in the
reclaimed disposal cell with an area of 11 ha. At present, 23ha of an area used for waste treatment is
reclaimed and degassed.
Biogas from drilled wells equipped with
perforated pipes is delivered via individual
pipelines to container-type collector stations
with collector sewers and control and
measurement instruments. The gas from the
collector stations is transported to the
container-type suction/blower station. By
producing negative pressure, the gas suction
nozzle in explosion-proof design sucks the gas
out from the gas wells, and then compresses it
to approximately 100 mbar supplying powergenerating units or biogas flare. With CH4
content below 30 % and O2 content exceeding
3 % biogas cannot be used for energy
production purposes, and hence it is
neutralised in the flare.
Gas extraction system
Between2003-2008 the biogas plant was upgraded and extended, achieving an installed capacity of
1 224 kW. In 2003, a third power-generating unit was installed with a capacity of 200kW and with a
synchronic generator. Additional elements of the power & heat plant were purchased, which
helped the landfill become independent from the operation of an external power & heat plant.
Approximately 95% of the energy produced in the Biogas plant is sold to the power network
supplying individual customers, and the generators neutralise nearly 650 m3 of biogas per hour,
which contains methane ( 20 times more harmful than CO2).
DRILLED WELLS
DN65
NEUTRALISATION
FLARE
ENERGETIC NETWORK
15KV
P
COLECTOR STATION
TRANSFORMER
STATION 15/0,4 KV
DN100
DN200
DN80
SUCTION / BLOWER
STATION
AG 1
P
DN80
P
AG 2
DN80
P
AG 3
DN100
100MBAR
UPS
DN250
AG 4
P
FOR OWN
USE
Gas extraction system
The total capacity of the four 1224 kW generator sets
Production of electricity
produced ~6,6 million kWh (2013)
neutralized 3,3million m3 of biogas (in 2013)
Production of heat energy.
used ~ 1309 GJ (2013)
Neutralization in the torch.
Leachate treatment plant
The design and construction of the WDS in Suchy Las minimises the negative impact on the
environment.
It is equipped with a plant for treating leachate produced as a result of precipitation flowing through the
layer of deposited waste. Leachate must be treated as it contains a considerable amount of toxic
substances and heavy metals. Thanks to the leachate treatment plant located on the premises of the
WDS in Suchy Las, about 5 thousand m3 of treated water is returned to the environment. Treated water
is directed to the retention pond. The fauna (water birds and fish) and flora of the pond are the best
proof for visitors of the effective functioning of the treatment plant. Part of the water collected in the
retention pond is used as process water, i.e. for spraying roads and watering vegetation growing within
the premises of the disposal site.
Leachate treatment plant
The wastewater treatment plant located on the landfill grounds helps to avoid contamination of surface
and ground water resources.
Treated leachate is used for process purposes and directed to a natural pond. The leachate treatment
plant operates on the basis of reverse osmosis i.e. cross-filtration. As a result of the process, treated
water and condensed water is produced.
Condensed water presenting a significant threat to the natural environment is re-circulated to the
reclaimed cells in order to intensify the process of anaerobic digestion and generation of biogas.
Treated water goes into a stabilization pond, a reservoir of water for technological processes, watering
the greenery and washing the internal roads on the landfill grounds.
In 2012, the total amount of 5707 m3 of treated leachate was re-circulated to the environment in the
firm of clean water
Leachate treatment plant
The establishment of an environment-friendly leachate management system in the landfill helps
to avid contamination of nearby surface and ground water resources.
The surface water bodies situated in the area are tributaries of the Warta River. Drinking water
supplied to the inhabitants of Poznań is abstracted from the Warta, hence the quality of surface
water bodies is of utmost importance.
Leachate treatment plant
BIOGAS
RECLAIMED
DISPOSAL CELLS
DN200
LEACHATE
CONCENTRATED
LEACHATE
LEACHATE
TREATMENT
PLANT
STABILITY POND
CLEANED
LEACHATEWATER
RETENTION
RESERVOIR
LEACHATE
USES OF TECHNOLOGY
LEACHATE
TREATMENT
PLANT
INFILTRATION
INTO THE GROUND
Organic fertiliser Agro- Felek
Since 2008, green waste (grass, leaves) delivered to the waste disposal site has been
deposited in a prism-shaped compost heap located within the premises of the Suchy Las WDS.
The generated compost is used for covering and fertilising the vegetative layer on the site. The
compost produced by the Waste Management Company in Poznań was granted a marketing
authorisation by the Minister of Agriculture and Regional Development and placed on the
market under the name Bio- Felek. In 2012, the name of this organic fertiliser was changed to
Agro- Felek, as per the decision of the Minister of Agriculture and Rural Development no.
246a/ 12.
Mobile Selective Municipal Waste
Collection Point-GRATOWÓZ
Opening the Mobile Selective Municipal Waste
Collection Point-GRATOWÓZ [OLD STUFF TRUCK],
allowed to reach the inhabitants more easily. They can
find exact addresses and parking times of the
GRATOWÓZ in the schedule given on the web site
www.odpady.poznan.pl. The schedule is also issued
once a year as an educational and informative leaflet
distributed together with the local newspapers.
GRATOWÓZ receives waste from inhabitants free of
charge two times on month on Saturdays. Due to growing
interest in the possibility of legal disposal of problematic
waste, we had to find new technical and logistic solutions
to meet the expectations of the inhabitants of Poznań.
Therefore the notion of GRATOWÓZ means at present
four trucks!
Cars are intended for collecting used-up electrical equipment.
GRATOWÓZ collects the used-up electrical and
electronic equipment
In 2013 the Mobile Selective Municipal Waste Collection Point collected
over 81 Mg of waste.
Selective Municipal Waste Collection Points
„GRATOWISKO”
At the Gratowisko such items as used-up electrical and electronic equipment and batteries are collected
from the inhabitants free of charge.
The Waste Management Company organized a system of waste segregation and a system of hazardous
waste collection. The increasing selective waste collection has resulted in a decreasing stream of waste
coming to this dump site, indirectly contributing to the environment protection. Starting 3 Selective
Municipal Waste Collection Points and the Mobile Selective Municipal Waste Collection Point created
for the inhabitants a possibility of disposing of some waste in an environment friendly way. All
collected waste are stored in containers.
At the Gratowisko the
inhabitants of Poznan may
bring their selectively collected
problematic and hazardous
waste, including:
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used-up electrical and electronic equipment
batteries
old medicines
absorbents, old rugs
old paints, solvents, glue and chemicals
bulky waste (e.g. old furniture)
debris remaining after minor refurbishing
green waste (grass, leaves, cut branches and
bushes)
In 2013 the 3 Selective Municipal Waste
Collection Points collected over
4308,5 Mg of waste.
Amount of waste collected by Selective Municipal Collection Points
4389,639
4500
4000
3500
2518,536
3000
Mg
1925,674
2500
1500,395
2000
1185,841
1500
679,21
1000
500
202,799
0
2007
2008
2009
2010
2011
2012
2013
Amount of electrical and electronic equipment collected by Selective Municipal
Waste Collection Points
643,9
700,0
555,6
600,0
668,3
697,3
577,1
500,0
400,0
279,0
Mg
300,0
200,0
100,0
8,4
32,4
62,4
0,0
2005
2006
2007
2008
2009
2010
2011
2012
2013
Old medicines and used-up batteries
collection systems
Regarding small size batteries collection, the Waste Management Company signed an agreement with
the REBA Organizacja Odzysku (Recovery Organization) thus becoming the system Operator representing
the Organization in the city of Poznań.
The main function of the Reba Educational Program is the exchange of used-up batteries for points. The
points may then be exchanged for items according to an offer placed in a special catalogue. Due to
major interest in collection of used-up batteries also public use buildings and shops selling batteries
were equipped with containers for the battery collection. In the 2012 there were collected 11,5 Mg of
used-up batteries.
Ecological education
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The Waste Management Company acts in compliance with the environment protection principles
regarding waste management. With its vast scope of pro-ecological actions it prevents degradation of
natural environment and contributes to its improvement, thus contributing to the improvement of the
inhabitants living conditions.
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Ecological education is one of the basic activities performed by the Waste Management Company for
many years. The ecological activity is based on co-operation with the inhabitants of the city of Poznań.
Our pro-ecological actions do not consist only in maintaining tidiness and proper problematic and
hazardous waste management but also in convincing the local society to properly manage hazardous
and problematic waste and to support the idea of the environment protection.
Thank you