ANALYSIS OF THE USE OF BIOCHAR TO PURIFY WATER FROM FORMALDEHYDE

The possibility of obtaining biochars by carbonization of coniferous and deciduous wood sawdust was studied, their physicochemical parameters and sorption capacity of the initial and activated samples in relation to the formaldehyde solution were determined. The samples were activated with a 2 M KOH solution. Carrying out the activation promotes an increase in the sorption capacity of pine biochar by 1.7 times, biochar from poplar wood - 1.4 times.