English
Русский 43-53 p.
Сarbon materials are widely in demand, used in many sectors of human life. Due to their complex properties, they are indispensable both in industry or agriculture, and in environmental protection. However, the ecological and economic aspects of their production: the availability of primary raw materials and the cost of obtaining high-quality adsorbents sharply increase the cost of these products. On the other hand, a lot of plant waste is generated annually, estimated in Russia at several million tons. Organic fractions of municipal waste represent potential raw materials for thermal processing into carbon materials. This direction of their utilization allows us to solve two tasks at once – to obtain inexpensive high-quality carbon material and reduce the amount of waste of plant origin. In this work, the object of research was pre-dried rose flowers, which were crushed, heat treated at 450-500 °C for 4 hours, followed by multistage washing with hydrochloric and hydrofluoric acids and water. It is shown that the chemical purity of the product depends on the sequence and number of washing steps. The resulting carbonizate was characterized by relative purity (ash content 0.9 wt. %. with a carbon content of 84%) and satisfactory porosity, which, according to the test results for test substances – iodine and methylene blue (adsorption capacity for which is 35.5% and 45 mg·g–1, respectively), considered this material promising in wastewater treatment water treatment and other fields. For comparison, the article presents the quality indicators of activated carbon from birch wood of the BAU brand and a number of agricultural waste.
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8. ITS 50-2017. Informacionno-tehnicheskij spravochnik po nailuchshim dostupnym tehnologijam. Pererabotka prirodnogo i poputnogo gaza" (utv. Prikazom Rosstandarta ot 14.11.2017 № 2423).
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Kurilkin A.A., Nistratov A.V., Klushin V.N., Saw Win Myint, Khvostova A.I. A method for obtaining high-purity carbon material from plant waste. Chemical Bulletin. 2023. 6 (4). P. 43 – 53.