|
| Front page | | Contents | | Back | | Printing instructions |
Life Cycle Assessment of Biogas from Separated slurry
Table F.26. Mass balances for separation of the degassed biomass.
Per 1000 kg of degassed biomass mixture “ex-digester”.
| |
Amount in
degassed
biomass
mixture
BEFORE
separation |
Separation
index from
table F.25 |
Mass
Balance:
Amount
transferred to
the fibre fraction |
Mass
balance:
Amount
transferred
to the liquid
fraction |
Composition of
the degassed
fibre fraction
AFTER
separation |
Composition of
degassed liquid
fraction
AFTER
separation |
| |
|
|
|
Fibre fraction *
1000 / 241.6 kg |
Liquid fraction *
1000 kg / 758.36 kg |
[per 1000 kg
ex-digester] |
|
[per 1000 kg
ex-digester] |
[per 1000 kg
ex-digester] |
[kg per 1000 kg
fibre fraction] |
[kg per 1000 kg
liquid fraction] |
| Total mass |
1000 kg
Slurry
ex-digester |
24.16% |
241.6 kg |
1000 kg –
241.6 kg
= 758.4 kg |
1000 kg
Degassed fibre
fraction |
1000 kg
degassed liquid
fraction |
| Dry matter (DM) |
105.98 kg |
60.9% |
105.98 kg
*60.9%
= 64.54 kg |
105.98 kg *
(100-60.9)%
= 41.44 kg |
267.1 kg |
54.64 kg |
| Total-N |
8.722 kg |
21.2% |
8.722 kg
*21.2%
= 1.849 kg |
8.722 kg *
(100-21.2)%
= 6.873 kg |
7.65 kg |
9.06 kg |
| Total-P |
3.235 kg |
66.2% |
3.235 kg
*66.2%
= 2.14 kg |
3.235 kg *
(100-66.2)%
= 1.093 kg |
8.86 kg |
1.44 kg |
| Potassium (K) |
2.450 kg |
9.7% |
2.450 kg
*9.7%
=0.238 kg |
2.450 kg *
(100-9.7)%
= 2.212 kg |
0.98 kg |
2.92 kg |
| Carbon (C) |
51.41 kg |
60.9% |
51.41 kg
*60.9%
= 31.31 kg |
51.41 kg *
(100-60.9)%
= 20.10 kg |
129.6 kg |
26.51 kg |
| Copper (Cu) |
0.0433 kg |
36.2% |
0.0433 kg
*36.2%
= 0.0157 kg |
0.0433 kg *
(100-36.2)%
= 0.0276 kg |
0.065 kg |
0.036 kg |
| Zinc (Zn) |
0.0146 kg |
42.2% |
0.0146 kg
*42.2%
= 0.0062 kg |
0.0146 kg
*(100-42.2)%
= 0.0084 kg |
0.025 kg |
0.0111 kg |
| Front page | | Contents | | Back | | Printing instructions |
Version 1.0 August 2010, © Danish Environmental Protection Agency
|