Method for producing mineral-organic fertilizer having the effect of controlled releasing of active substance

摘要

Method of manufacture of a preparation for fertilisation of agricultural, horticultural, forestry and degraded soils, consisting of the introduction into the reaction chamber of sewage sludge from the food industry, limestone, calcium carbonate and sodium hydrocarbon, After mixing, the material obtained is transferred to the reaction chamber where the incubation is carried out. After incubation, the material obtained shall be transferred, by means of a conveyor belt, to the pelleting device. During transport,the material is sprayed with an aqueous suspension of starch to an extent that increases its moisture content. The pelleting of the material is carried out in a continuous system and the final product is left for the drying period. As a result, mineral-organic fertiliser is obtained in the form of a granulate, depending on the matrix used, containing condensed biomass in the composition,Sodium carbonate, sodium hydrocarbon and starch binder.