from 01.01.2010 until now Voronezh, Voronezh, Russian Federation
Voronezh, Russian Federation
The paper presents the results of a study of new carbon sorbents synthesized from the sediments of left-bank wastewater treatment plants (VOCs) in Voronezh. Three modifications of biochar (U400, U500, and U600) with a controlled particle size of 200-300 microns were obtained by pyrolysis at different temperatures (400°C, 500°C, 600°C). Compositional analysis revealed predominant carbon content (55-59%) and presence of metal impurities. Copper sorption experiments from model solutions showed direct correlation between treatment efficiency (7-50%) and synthesis temperature, with U600 sample demonstrating maximum capacity (93.7 mg/g). Kinetic analysis highlighted equilibrium time variations (40-240 min) depending on sorbent type, providing insights into the sorption mechanism. The developed materials offer dual environmental benefit by combining waste utilization with effective water purification technology.
sewage sludge, carbon sorbents, sorption, wastewaters treatment, heavy metals, ecology
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