Digestate as Fertilizer

Reference plants
BN Nordhümmlinger Biogas GmbH & Co. KG
Presented technology:
Dribble bar system SwingUp
Manufacturer of the upgrading unit:
Vogelsang GmbH & Co. KG
Manufacturer of the biogas plant:
Biogas Weser Ems
Commissioning year: 2005
GERMANY
Installed capacity: 1,950 kW el
BN Nordhümmlinger Biogas GmbH & Co. KG places great importance on the efficient
spreading of digestate – this is done with a dribble bar system, a Strip Till unit
and direct incorporation
Amount of produced digestate:
20,000 t/a
BN Nordhümmling GmbH is jointly operated by four partners in
Börger. It supplies two satellite cogeneration units that provide
heating for a workshop for the disabled, a school, a gym, a kindergarten
and a swimming pool in Börger. As a result, the biogas plant
enjoys a high level of acceptance in the community. The feeding
of the biogas plants, as well as the end products, are processed
without export and within a radius of around 10 kilometers. The
plant operators place particular importance on the efficient use of
digestate. They use, among other things, the Vogelsang SwingUp
dribble bar system with a working width of 15 metres, the Vogelsang
XTill as a Strip Till unit and a short disk harrow from Pöttinger with
the SynCult retrofitting set from Vogelsang. The various technologies
enable optimum liquid manure spreading and incorporation
for different requirements and plants with the SwingUp dribble bar
system used mainly for grain. The end hoses divide the crops and
deposit the liquid manure directly under the plant, close to the soil
and with low emissions. The nutrients are thus placed exactly where
the plant needs them.
The XTill Strip Till unit allows several work processes in one: plowing,
cultivating, seed bed conditioning and liquid manure incorporation
are carried out in one step. The operators use strip tillage
before sowing maize. For the direct incorporation of liquid manure
into the grain and maize crop, BN Nordhümmling uses a short disk
harrow in combination with the SynCult from Vogelsang. The retrofitting
set allows efficient use of nutrients.
Nutrient contents [kg/t FM]
60
50
40
30
20
10
0
N ges.
Digestate to be applied
NH 4
P 2
O 5
S K 2
O Org.-C
Operator
BN Nordhümmlinger Biogas GmbH & Co. KG
Tannenweg 1
26904 Börger
Germany
Contact person: Wilfried Sievers
Telephone: +49 5953 926841
Fax: +49 5953 925126
Mail: wilfriedsievers@gmx.de
Generated products: Liquid digestate, dried digestate
Use of the digestate: Drag horse spreader, drag shoe spreader,
stripp-Till, soil incorporation (e.g. cultivator)
Conditioning the digestate: Micronutrients
40