Method for decomposing biogenic material
View Patent ↗The invention relates to a method for decomposing biogenic material, wherein a percolator is charged with biogenic material, a percolation liquid is separated by sieving and re-sprayed again onto the biogenic material, excess percolation liquid is pumped into a buffer from where it is transported into a biogas reactor and fermented to form biogas. The method is characterized in that the purified percolation liquid is transferred as waste water to a storage buffer container from where it can be retransferred to the percolator.
1. A method for decomposing biogenic material, wherein a percolator is loaded with biogenic material,
a percolation liquid is separated through a sieve and again sprayed onto the biogenic material, without first being passed through a biogas-reactor,
excess percolation liquid is introduced into a buffer tank, from there pumped into a biogas-reactor and fermented to biogas, wherein the cleaned percolation liquid is transferred as wastewater into a storage buffer tank and wherein the wastewater can be transferred from there again into the percolator.
2. The decomposing method according to claim 1 , further characterized in that the excess percolation liquid is stored.
3. The decomposing method according to claim 1 , further characterized in that a shock of compressed air is impressed discontinuously through the perforated walls of a sieve bottom.
4. The decomposing method according to claim 1 , further characterized in that normal pressure prevails in percolator.
5. The decomposing method according to claim 1 , further characterized in that percolator is driven aerobically.
6. The decomposing method according to claim 1 , further characterized in that a part of the wastewater is discharged discontinuously and fresh liquid is introduced.
7. The decomposing method according to claim 1 , further characterized in that sinking and/or floating substances are separated in buffer tank and/or in storage buffer tank.
8. The decomposing method according to claim 1 , further characterized in that the fermenting to biogas is conducted by means of added and/or immobilized bacteria.
9. A biogas plant for a method according to claim 1 , consisting of at least one percolator with a sieve bottom and a pump, a buffer tank, at least one biogas reactor, and at least one storage buffer tank.
10. The biogas plant according to claim 9 , further characterized in that it consists of at least two parallelly connected percolators.
11. The biogas plant according to claim 9 , further characterized in that the percolators are acid-resistant.
12. The biogas plant according to claim 9 , further characterized in that the percolators are heatable.
13. The biogas plant according to claim 9 , further characterized in that the biogas reactor is gas-tight.
14. The biogas plant according to claim 9 , further characterized in that the biogas reactor is heatable.
15. The biogas plant according to claim 9 , further characterized in that the storage buffer tank can be aerated.
16. A use of the biogas plant according to claim 9 for the production of biogas and for the storage of percolation liquid.