Danish Biogas Technology Co-digestion for Energy and Environment

Paris, France, Monday April 14th 2008

What can Danish biogas technology do?

• Handle waste

• Reduce odour

• Increase nutrient accessibility

• Reduce nutrient leaching

• Provide CO2- free energy

• Provide added revenue

• Enrich the community

• Reduce GHG emissions

The Technology: Anaerobic digestion

• Mesophilic or Thermophilic process

• Fully mixed digesters

• Co-digestion concept

• Proven in Denmark

• We have 25 years of experience

• World class R&D

History and Future of Danish Biogas

Drivers

Milestones

Biogas Plants in Operation

m3 biomass processed at:

Large plants

• Animal manure 1.290.000

• Organic waste 275.000

• Total 1.565.000

Farm Plants 300.000

Total annual 1.865.000

20 Large Biogas Plants

57 Farm based Biogas Plants

What is Biogas?

Input Composition for the Danish Community Biogas Plants 2001

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

VHJ VEG DAV SIN FAN REV RIB LIN LEM HOD HAS THO ÅRH FIL STU BLA SNE BLÅ V-F NYS

Cow Pig Other manure Industry waste total Sewage sludge sludge Household waste

Biogas Plant Design

Biogas Technology• Pre-treatment

– Mixing– Macerating– Hygienisation/ sterilisation– +/- other pre-treatment: e.g.

concentration

• Digestion

• After treatment– Store– Separate– Upgrade

• End use– Land application– Move and apply– Transport market / or disposal

• Gas– Direct use for CHP– Upgrade for natural gas grid– Vehicle fuel

Ongoing projects April 2008

• Korea construction• China final design• Vaarst upgrade • Lintrup upgrade• Blåhøj upgrade• Veendam due

diligence• Process &

mechanical consultant– Foulum– Båndlev– Vaarst

Bio-ethanolplant

Biogasplant

CHP

Pelletingplant

Bio-dieselplant

Olie mill

Corn

Straw

ManureDistillers grainStillage

Glycerine

Bio-diesel

Bio-ethanol

Electricity and heat

Rapeseed, soya

Olie

Press cake

BiomassFuel pellets

Heat

(Straw in 2nd generation)

Biogas Synergy with other RE

GasFibres

Heat

Heat

Fodder

Other organicwaste

Fodder

Methanol

Fertiliser

Vegetable oil

Ethanol

Fibres from manure

THANK YOU!Niels Bahnsen – nba@niras.dk

Hans Henrik Hansen – hhh@niras.dk