The aim of the invention is to devise a method for the production of concentrated, liquid or pasty substances from humin-containing, multi-component raw materials of different origin, such as digested sludge from freshwater lakes, and to allow the use thereof as fertilizers or as additives for biogas plants. The method according to the invention for the production of liquid or pasty, humin-containing preparations for different applications, such as water-soluble surfactants, humus-stimulants for plant growth, fertilizers, fillers for chemically-resistant plastics, dyes, cement additives, drilling reagents, additive for bioreactors by thermo-chemical (alkaline extraction) and/or physical (magnetic, electromagnetic, cavitation, ultrasound) treatment or a combined method through mechanical influence use humin-containing starting materials including at least one, two or more types of raw materials of natural origin from the group including caustobioliths, peat, coal, brown coal, oil shale, sediment sludge from fr
