Download Poster Reuse of valuable components in manure

Reuse of valuable components in manure:
Large scale demonstration plant: Mineral Valley Achterhoek (Beltrum)
Oscar Schoumans (Alterra Wageningen UR), Arjan Prinsen (Groot-Zevert Vergisting BV), Hans Klein Willink (Wilba techniek BV)
Current situation
Manure production
--- Applied on own farm
--- On manure market
Background
• Europe need to recover and recycle the valuable minerals available
in manure to overcome economic, industrial, social and
environmental problems.
• Phosphate is finite critical and irreplaceable / non-renewable
resource for our food production and Europe has no significant
phosphate rock mines.
• Furthermore, reduction of the costs of manure disposal is needed,
because the negative influence on the farmer’s income and
investment options are substantial.
Objective
This innovative business project proposes, tests and demonstrates a
cascade of recovery techniques at large scale (> 100.000 ton manure)
to valorise available components in manure.
173 Mio kg P2O5
79 Mio kg P2O5
94 Mio kg P2O5
--- To crop farms
--- Surplus (mainly exported; D, F, etc)
48 Mio kg P2O5
46 Mio kg P2O5
Figure 1. Manure production and manure disposal (after De Koeijer et al., 2012)
Principle Mineral Recovery Plant
Biogas, heat &
electricity
Mineral Nutrient Recovery System
pH controlled
process water
P rich
solution
P stripper
digester
Solid
Manure,
Calcium
phosphate
Organic
Flow in
Liquid
pH control
Ca(OH)2
Mineral P
CaxHyPO4 . zH2O
P COLLECTOR
P RELEASER
Organic
flow out
Phosphate
CO2 and
fertilizer
N stripper
Irrigation water or
additional treatment
Mineral N
(biological or Reversed
Osmosis)
(NH4)2SO4
Organic matter
adjusted N and P
content
Nitrogen
fertilizer
Figure 2. Approach to recover nutrients from digestate (and manure) at a large scale demonstration plant at the digester Groot Zevert (Beltrum)
Products
• Recovery of Phosphorus (P) minerals which can be used as
secondary resource for industries.
• Recovery of Nitrogen (N) as ammonium sulphate or ammonium
nitrate which are considered as acknowledged fertilizers.
• Organic matter with a reduced N en P content which can be applied
in the nearby region (no long distance transport needed anymore).
• Process water from the liquid fraction with a reduced P and N
content which can be applied as irrigation water or which can be
additionally treated for draining purposes (sewage or surface water)
Alterra Wageningen UR
P.O. Box 47, 6700 AA Wageningen
Contact: [email protected]
T + 31 (0)317 486446, M +31 (0)6 20 53 42 09
www.WageningenUR.nl
Impact
• Increasing the reuse of minerals recovered from manure as
secondary resource for industries and agriculture from a cradle-tocradle perspective and reduce the import of minerals or the high
costs of producing chemical fertilizers.
• Increasing cost efficiency of manure processing towards a positive
business case.
• Reducing the inefficient use of minerals of manure in areas with
mineral surpluses.
• Reducing the negative impact of excessive use of manure and
minerals on the environment.
• Enabling the decision making process: to move into industrial scale
manure processing after the successful demonstration of the whole
value-chain from manure to application.