1 AD in an integrated farming environment Dr Andrew Salter Anaerobic Digestion and Biogas Association National Exhibition Centre, 07 July 2010 Dr. Andrew Salter ADBA, NEC, 2010 AD 4 RD • Integrated Systems for Farm Diversification into Energy Production by Anaerobic Digestion • Rural Economy and Land Use (RELU) • University of Southampton – School of Civil Engineering & the Environment – School of Biology • University of Reading, – Centre for Agricultural Strategy • http://www.AD4RD.soton.ac.uk
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1
AD in an integrated farming environment
Dr Andrew Salter
Anaerobic Digestion and Biogas AssociationNational Exhibition Centre, 07 July 2010
Dr. Andrew SalterADBA, NEC, 2010
AD 4 RD
• Integrated Systems for Farm Diversification into Energy Production by Anaerobic Digestion
• Rural Economy and Land Use (RELU)
• University of Southampton
– School of Civil Engineering & the Environment
–School of Biology
• University of Reading,
–Centre for Agricultural Strategy
• http://www.AD4RD.soton.ac.uk
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Dr. Andrew SalterADBA, NEC, 2010
• Research areas include:
–Policy and practice
– Social implications/perspectives
–Economics
–Environmental impacts
–Energy and GHG emissions
AD 4 RD
Crops for AD
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Dr. Andrew SalterADBA, NEC, 2010
• AD creates two products
–Biogas = energy
–Digestate = bio-fertiliser
• Can change the amounts/balance of both of these by changing the materials fed in to the digester
AD - feedstocks and outputs
Dr. Andrew SalterADBA, NEC, 2010
Crops for bio-fuel (energy) production
• for bio-diesel
– oilseed rape
– sunflower
– linseed
– soya
– Peanut
– Jatropha
• for bio-ethanol
– wheat
– sugar beet
– maize
– sugar cane
– lignocellulosic
material
• for biogas
– crops
– agricultural
wastes
– green waste
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Dr. Andrew SalterADBA, NEC, 2010
Potential crops for biogas -
• Barley
• Cabbage
• Carrot
• Cauliflower
• Clover
• Elephant grass
• Flax
• Fodder beet
• Giant knotweed
• Hemp
• Horse bean
• Jerusalem artichoke
• Kale
• Lucerne
• Lupin
• Maize
• Marrow kale
• Meadow foxtail
• Miscanthus
• Mustard
• Nettle
• Oats
• Pea
• Potato
• Oilseed rape
• Reed canary grass
• Rhubarb
• Ryegrass
• Sorghum
• Sugar beet
• Triticale
• Turnip
• Verge cuttings
• Vetch
• Wheat
Dr. Andrew SalterADBA, NEC, 2010
Methane yields
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Bar
ley
Cab
bag
e
Car
rot
Cau
liflo
we
r
Clo
ver
Co
cksf
oo
t
Co
mfr
ey
Ele
ph
ant
gras
s
Fab
a b
ean
fie
ld b
ean
s
Flax
Fod
de
r b
ee
t
Gra
ss
gras
s/cl
ove
r
He
mp
Jeru
sale
m …
Kal
e
Luce
rne
Lup
ine
Mai
ze
Mar
row
kal
e
Me
ado
w f
oxt
ail
Mis
can
thu
s
Mu
star
d
Ne
ttle
Oat
s
oils
ee
d r
ape
Po
tato
Re
d c
love
r
Re
ed
can
ary
gras
s
Rh
ub
arb
Rye
Rye
gra
ss
Sorg
hu
m
Sud
angr
ass
Suga
r b
ee
t
Sun
flo
we
r
Trit
ical
e
Ve
tch
Wh
eat
Wh
ite
cab
bag
e
catt
le m
anu
re
Pig
man
ure
Po
ult
ry m
anu
re
me
than
e y
ield
(m
3 C
H4
/ kg
VS
add
ed)
5
Dr. Andrew SalterADBA, NEC, 2010
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Wheat Triticale
me
than
e y
ield
m3/h
a
3-4 node
anthesis
milk ripe
dough ripe
mature
Effect of harvest date
Amon, T., Amon, B., Kryvoruchko, V., Machmüller, A., Hopfner-sixt, K., Bodiroza, V., Hrbek, R., Friedel, J., Pötsch, E., Wagentristl, H., Schreiner, M . & Zollitsch, W. (2007) Methane production through anaerobic digestion of various energy crops grown in