Renewable energy from organic
waste - the biogas plant Stellinger
Moor in Hamburg
BIOWERK Hamburg GmbH & Co. KG
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General conditions
• Legal conditions
– German law for the disposal of animal by-products since
the 25.1.2004  implementation of the EU regulations
for Animal-By-Products
Animal By Products EG Nr
Nr. 1069/2009 (until 2002
No. 1774/2002 ).
• Changes on the waste market
– Utilisation of leftover as feedstock instead animal feed.
– The law leads to new disposal ways for animal byproducts ((esp. class 2 and 3 material).
)
• Utilising renewable energy
– Fixed income for electricity output from biogas plants
(German Renewable Energy Law)
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Project goal
• Strategic aspects
– Utilising legal changes on the waste market
– Enhancing customer relationship
– Creating a strategic alliance with new
partners
• Economic aspects
– Reducing the treatment costs for organic
waste.
– Creating additional income
– Gaining a profit out of plant operation
• Start in April 2006
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Partners and competence
BIOCYCLING
GmbH
47,5 %
Collection and disposal of waste from
supermarkets (expired foodstuff) and
food leftover from restaurants.
ETH
Umwelttechnik
GmbH
Treatment off organic
T
i waste for
f the
h
utilisation in agriculture
5%
SRH
VerwaltungsVerwaltungs
GmbH
47,5 %
Collection and disposal of household
waste
t iin Hamburg,
H b
operation
ti
off waste
t
treatment plants (WTE)
Area view on the waste treatment
facility
5/43
Characteristics of the location
•
•
Approved for waste treatment facilities
Existing location for waste treatment facilities since
1972
– Waste transfer station, Pre-treatment, Incineration
•
•
Short availability of suitable area
Good infrastructure
– Logistics (Motorway)
– Technical support
– Weighbridge
•
Infrastructure for energy transfer (heat and electricity,
in and out)
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Metthane rate
T i l iinputt ffor bi
Typical
biogas plants
l t
Animal
Farming
Crop
Farming
Animal byproducts
Food-production
residues
Household
Wastes
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T i l bi
Typical
biogas composition
iti
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Principals of biogas production
Four stages of anaerobic digestion:
1.
2.
3.
The first stage is hydrolysis, where complex organic molecules are
broken down into simple sugars
sugars, amino acids
acids, and fatty acids with
the addition of hydroxyl groups.
The second stage is acidogenesis where a further breakdown into
simpler molecules occurs, producing ammonia, carbon dioxide and
hydrogen sulphide as by-products.
The third stage is acetogenesis where the simple molecules from
acidogenesis are further digested to produce carbon dioxide,
h d
hydrogen
and
d mainly
i l acetic
ti acid,
id although
lth
h hi
higher-molecular-weight
h
l
l
i ht
organic acids (e.g., propionic, butyric, valeric) are also produced.
CO2 + 4H2  CH4 + 2H2O
4.
The fourth stage is methanogenesis where methane, carbon
dioxide and water are produced.
acetic
ti acid
id  CH4 + CO2 + H2O
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Principals of biogas production
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Examples of input material
Unpacked
waste
Food left over
Fruits and vegetables
Meat
Packed
waste
Bakery
Meat and Eggs
Yoghurt and milk products
Process chain biogas plant for organic
waste
Waste
Substrate
Waste Treatment
Shredder
Separation
Hygienisation
Anaerobic
Fermentation
Primary gas
Exhaust
Product gas
Liquid
Fermentation
Gas Treatment
Reject
Residue
Packing
Utilisation
Residue
Utilisation
Electricity- and heatproduction in
Wte plant
Agricultural
Fertiliser
Desulphurisation
Drying
Sulphur
Gas
Utilisation
Electricity- and heatproduction in
CHP plant
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Simplified flow chart
Bunker
solid
waste
80 m³
240 m³
m
30 m³
Mixing Tank
30 m³
Heat Treatment
70 °C, 1 h
Hydrolysis
Gas Cleaning
Milling
2.800 m³
910 m³
R j
Reject
2.000 m³
Oil and grease
tank
Storage Tank
Fermentation
50
m³
Exhaust
50
m³
Liquid residue
Heat
1,064 MWelektrisch
Liquid waste tank
1,104 MWthermisch
Electricity
CHP-Plant
Outside view of biogas plant
CHP-plant + stack
Desulphurisation
Digestion
Thermal treatment
Storage tank
Fat tank
Biofilter
Hydrolysis
Heat exchanger Treatment hall
Transformer station
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Organic slurry
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Gas production
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Packaging Residue
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Energy production
• Gas production rate 330
m³/h
• Energy content Biogas
ca. 6,5 kWh/m³
• Engine MWM Deutz
12 Zylinder V
• 1.021 kW electrical
power
• 1.070 kW thermal power
• Overall efficiency 82,6 %
• Ca. 6,7 Mio kWh/a
Electricity
• Ca. 7,0 Mio kWh/a Heat
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Design parameter biogas plant
•
Input
– Foodstuff an other waste solid
– Foodstuff and other waste liquid
Total input
•
Output
– Digestion Residue
– Digestion to Agriculture
– Packaging and Metals
Total output
•
18.927 Mg/a
6.067 Mg/a
24.994 Mg/a
7.333
7
333 Mg
12.817 Mg/a
906 Mg/a
21.056 Mg/a
Energy
– Electrical energy
– Thermal energy
7,19
7
19 Mio kWh/a
6,82 Mio kWh/a
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District heating
Sport Arena
BGP
WTE
Soccer
Stadium
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Quality of the Digestion Residue
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Quality of the Digestion Residue
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Quality of the Digestion Residue
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Thank you for your interest !
Schnackenburgallee 100
22525 Hamburg
Tel: 040/2576-3091
Fax: 040/2576-3090
040/2576 3090
E-mail: [email protected]
Internet: http://www.biowerk
http://www.biowerk-hh.de/
hh.de/
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