Process for the material and energetic utilization of biogenic residues of starch production plants and arrangement for carrying out the process

摘要

Process for the material and energetic utilization of biogenic residues of starch production plants by using the residues in a wet fermentation, by concentrating the total nutrient potential in the form of nitrogen, phosphorus, potassium and sulfur in a fertilizer fraction obtained from the fermentation residues, and by providing the desulfurized biogas for the energetic utilization, characterized in that are used as wet fermentation Hefefermentation for bioethanol production and / or methane fermentation for biogas production, that the resulting biogenic residues from the starch production process, such as purging, waste starch, waste gluten, residues from the purification of feedstocks, from the upstream ethanol distillation, filter dusts, aqueous media from the periodic plant cleaning and / or sludges from the operational wastewater treatment, be subjected to a suspending process that is adjusted by using additives having dry matter contents of at least 25% in the biosuspension a dry matter content between 12 and 18% that the biosuspension produced is subjected to an aerobic hydrolysis process, that the hydrolyzate produced from the biosuspension an anaerobic fermenter system of at least one hydraulically and partially mixed Fermenter is fed with initially used and constantly reproducing special culture that contained in the recycled feedstock potential plant nutrients is obtained as a mixture of the solid phase of the fermentation residues and resulting from the Hemmstoffentfrachtung the Biofiltrate liquid washing media with high levels of ammonium and sulfur compounds, and that the desulfurized, dried and compressed biogas is used for the coupled production of electrical and thermal process energy.