| 摘要 |
In a process for the production of pasteurised animal and crop nutrients from domestic, industrial and agricultural waste, a first process step comprises adding to a sludge decanted to 22% dry matter additives intensifying degradation, such as carbon donors, carbohydrate donors and catalysts. The mixture is stirred during this until a process temperature of 20-30 DEG C is attained. In a second process step, organic waste corresponding to at most 200% of the sludge weight is fed with constant stirring of the waste mixture until a process temperature of 45-55 DEG C is attained. The moisture content is adjusted by means of moistening or drying additives, such as liquid manure, carcass broth, flotation waste or paper, wood dust pellets, to 30-40% of dry matter. Finally, in a third process step, the waste mixture is inoculated with 2 l of lamp kerosine per 1000 kg of waste weight and with a protein donor and a carbon donor. The inoculation weight is approximately 10% of that of the waste weight and the mixing ratio is 1:2. Intermittent stirring of the waste mixture is carried out with a stirring time of 10-20 minutes and a standing time of 20-30 minutes until the process temperature is 68-80 DEG C. |
