Composting of solid and liquid wastes and biodegradable sludges using worm humus (Eisenia fostida and similar species) and mixtures of worm humus and stomach material with a high microorganism content

摘要

The present invention consists of a method (humus composting) for obtaining a product (humus compost) by composting solid and liquid wastes and biodegradable sludges with worm humus (Eisenia foetida and / or similar species). In the embodiment, the invention comprises 4 steps: a) the preparation of stacks for humus composting: the stacks may consist solely of worm humus or mixtures of worm humus and material having a high content of microorganisms, such as rumen contents of cattle ; b) adding solid waste to the stacks; c) adding waste in the liquid state or sludges to the stacks; d) distributing the humus-composted material from the stacks to agricultural land and / or reusing it in the processing of other biodegradable wastes. Composting takes place in a minimum of 15 days at low temperatures, 0 to 15 ° C, such as those of the Bolivian Altiplano; Frequent mechanical mixing and ventilation systems are not required, and they are performed in the absence of flies and without producing bad odors. Therefore, it represents an effective method for producing an improver for agricultural soils, humus compost, and at the same time for combating water pollution of waters, expressed mainly as COD, BOD, P and N formed from biodegradable waste.