- System of hydraulic
mixed digester
-
- The GBU system reactor perform's
all these functions, featuring optimum substrate management and
blending without moving parts or additional energy. The gas produced
causes the pressure in the main fermenting chamber to rise, which
in turn leads to a drop in the fluid level combined with a rise
in the levei in the secondary fermenting chamber. Once the two
chambers have reached a certain predetermined level, the. gas
mixing flap opens, causing instantaneous pressure equalization.
The returning substrate is guided in such a way that it destroys
both surface scum and sediment layers and ensures thatthe mixture
is reliably blended.
- This structural principle guarantees
reliable function, a long service 1 ife and practically maintenance-free
operation.
-
-
- the anaerobic process
- a fourstage process
-
- I
- "Biogas" is a water
saturated gas mixture containing about 65-75% methane, 20-30%
carbondioxyd and small quantities of hydrogen sulphide and ammonia.
The average energy content of the biogas is about 6 kWh/Nm³.
A typical analysis of biogas is shown in the following table
|
Methan (CH4) |
40
- 75 Vol.-%
|
|
Kohlendioxid (CO2) |
25 - 60 Vol.-% |
|
Stickstoff (N2) |
0 - 7 Vol.-% |
|
Sauerstoff (O2) |
0 - 2 Vol.-% |
|
Wasserstoff (H2) |
0 - 1 Vol.-% |
|
Schwefelwasserstoff (H2S) |
0 - 1 Vol.-% |
|
- Substrates and the
typical gas production
|
Substrate |
- Biogas / Manure
|
|
Manure cow 7,5%-DM |
24,5 Nm³/m³ |
|
Manure cow 9,0%-DM |
29,0 Nm³/m³ |
|
Manure pig 6,0%-DM |
22,1 Nm³/m³ |
|
-
-
|