Spreading of dry matter fractions from separated liquid manure Senior scientist Krister Persson Forskningscenter Bygholm
Why worry about separated manure Reduction in area requirements Industrial treatment
DIAS / RCB - Bygholm Investigation of the possibilities of distribution of separated manure products. Spreadning must be done according to the international requirements given in the EN 13080 standard
During the project period the spreadability of 3 products with 3 different spreaders have been investigated
Fiberfraction from Fangel Biogasplant (L T) Decant centrifuge 33% dry matter Compost like
Fiberfraction from Green Farm Energy (H T) Decant centrifuge 33% dry matter Adhesive and coherent
Fiber pellets Fiber fraction from commercial sep. Unit made into 10 mm pellets 91% dry matter
3 spreaders Samson Flex
RKM Jumbo
Bredal K 65
Tests according to EN 13080 - Manure Longitudinal distribution Transversal distribution
The spreader was placed on balances and during emptying the weigth was recorded 2 parametres were calculated
Longitudinal distribution 150 Flow, % 100 50 0 0 50 100 Emptying time,% of total time RKM Fangel 2003
Longitudinal distribution 150 Flow, % 100 50 0 RKM Fangel 2003
Variationskoefficient, % langsgående fordeling Longitudinal distribution Langsgående fordeling Langsgående fordeling 160 140 160 140 120 120 Procent 100 80 60 40 Procent 100 80 60 40 20 20 0 Procent 0 Procent Bredal Fiber pellets 24,5 23,0 RKM Fangel 2003 32,9 26,6 GFE 2004 20,0 15,6 Samson Fangel 2003 27,8 20,6 GFE 2004 25,5 20,5 Requirement : Coefficient of Variation must below 40%
Stretch within the tolerance zone 145 125 105 85 65 45 25 5
Stretch within the tolerance zone Stretch within tolerance zone, % Spreader Requirement Product Min 35 % Bredal Lime spreader RKM manure spreader Samson manure spreader Manure pellets Product from low technology plant Product from high technology plant Product from low technology plant Product from high technology plant 56,2 59,2 82,6 75,3 83,1
Transveral distribution
Bredal K65, Fiber pellets 150 1 t/ha CV 12,8% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width 150 3 t/ha CV 13,0% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width
RKM, Fiberpiller 150 1 t/ha CV 14,3% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width 150 3 t/ha CV 9,8% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width
Samson, Fangel 150 100 10 t/ha VK 7,8% Percent 50 0 150 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width 30 t/ha VK 12,9% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width
RKM, GFE 150 100 3 t/ha CV 12,1% Percent 50 0 150 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width 10 t/ha CV 18,0% Percent 100 50 0 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Width
Transversal distribution, CV % Transversal distribution, CV % % Fiber pellets Bredal 1 t/ha 24 m 12,6 3 t/ha 24 m 13,0 Samson 1 t/ha 12 m 25,7 3 t/ha 12 m 26,3 RKM 1 t/ha 12 m 14,3 3 t/ha 12 m 9,8 Requirement : Coefficient of Variations must be below 30%
Variationskoefficient for fordeling på tværs Transversal distribution, CV % % Fangel Samson 10 t/ha 12 m 7,8 30 t/ha 12 m 12,9 RKM 10 t/ha 12 m 12,6 30 t/ha 12 m 12,4 Requirement : Coefficient of Variations must be below 30%
Variationskoefficient for fordeling på tværs Transversal distribution, CV % % GFE Samson 3 t/ha 12 m 7,8 10 t/ha 12 m 18,3 RKM 3 t/ha 12 m 12,1 10 t/ha 12 m 18,0 Requirement : Coefficient of Variations must be below 30%
Conclusions It is possible to distribute the solid parts from separated manure in a way that satisfy the requirements -The requirements on the longitudinal distribution can generally be met (CV < 40 %) - The requirements on the transversal distribution can generally be met ( CV < 30 %)