TY CONF TI APPLICATION OF BIOCHARS BASED ON SEWAGE SLUDGE FOR ENVIRONMENTAL PROTECTION PURPOSES KW sewage sludge KW birch wood KW pine wood KW sorption KW methylene blue dye JO ENERGY-SAVING AND ENVIRONMENTALLY FRIENDLY TECHNOLOGIES IN THE FORESTRY INDUSTRY AU Khodosova, N.A. AU Tomina, E.V. AU Manukovskaya, V.E. AU Ishchenko, T.L. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov