FIELD: ecology and natural restoration.
SUBSTANCE: invention relates to the fields of ecology and natural restoration, in particular to methods for producing biochar - biochar from natural organic substrates for soil restoration from herbicides. The method for obtaining biochar from sewage sludge and sawdust is carried out as follows. Sewage sludge with a moisture content of 50-55% is mixed with sawdust with a moisture content of 8-10% in a ratio of 3:1. The mixture is heated to a temperature of 500-700°C at a rate of 15-20°C/min and carbonization is carried out without oxygen access for 3 hours.
EFFECT: obtaining a final product with a rich mineral composition using a simplified technology, the use of which can reduce the herbicidal load on the soil.
1 cl, 4 ex, 2 tbl
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