%0 Conference Article %T ANALYSIS OF THE SORPTION CAPACITY OF BIOCHARS OF VARIOUS NATURE %A Baranova, P.E. %A Khodosova, N.A. %A Tomina, E.V. %A Manukovskaya, V.E. %K sewage sludge, poplar wood, sorption, methylene blue dye, biochar %J TECHNOLOGIES IN BIOECONOMICS: INNOVATIONS AND CHALLENGES IN THE 21ST CENTURY %D 2025 %P 6 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov