Doi.org/10.36073/1512-0902-2024-135-75-81
UDC: 54.055, 54.064, 67.08, 504.4.054
Assessment of Leachate Treatment by Carbon Nano- and Micro - Sorbents on the example of Tbilisi (Norio) Municipal Solid Waste Disposal Site/Natela Dzebisashvili, Darejan Tugashvili/Transactions IHM, GTU. -2024. -vol.135. -pp.ხხ-ხხ. - Georg., Summ. Georg., Eng. The aim of our research was to select optimal conditions of treatment of leachate generated at the Tbilisi (Norio) municipal solid waste disposal site, using carbon nano- and micro-material/sorbent. For this purpose, on the first stage, from April 2022 to March 2024, a physical-chemical and microbiological study of leachate was carried out, based on which, some pollutants were identified. The second stage of the research included the treatment of leachate samples with carbon sorbents of different sizes and types, under different conditions. The use of the selected nano-size sorbent under static condition is ineffective due to the formation of a tarred solution by organic compounds. Leachate treatment under static condition with carbon micro-sorbents (two types: obtained from polymer and cellulose-containing waste) showed that used both types of micro-sorbents have the greatest selectivity to heavy metals (Cd, Cr, Pb and Hg: 60-99%) and non-fecal origin microbiological indicators (98-99%). In addition, under dynamic condition, using of combination of nano- and micro-sorbents showed optimal results.
