Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

For the first time, a comprehensive review of the literature data on the use of apricot (Prunus armeniaca) biomass components as a sorption material for the treatment of wastewater and environmental water from various pollutants is carried out in the present study. In addition to a comprehensive analysis of contemporary studies, the current work carried out its own microstructural and energy dispersive studies. It shows that apricot kernel shell is a promising raw material for obtaining sorption materials that can be used to extract various pollutants from aqueous media. The parameters of sorption interaction are presented, at which the highest rate of removal of pollutants was achieved. It is shown that the sorption capacity of apricot biomass components can be increased by modifying it with various chemical reagents, as well as other physical and physicochemical methods. We reveal that most publications consider the use of the latter as a raw material for the production of activated carbons. It is established that the surface area and total pore space of activated carbons from apricot kernel shells depend on the modes of carbonization and activation. It is shown that activated carbons are effective adsorbents for removing various pollutants (metal ions, dyes, oil and oil products) from aqueous media. It was found that the adsorption isotherms of pollutants in most cases are best described by the Langmuir and Freundlich models, and the process kinetics is most often described by the pseudo-second-order model. The possibility of improving the sorption characteristics of apricot biomass during chemical or physicochemical treatment is also shown. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Shaikhiev I.1 , Shaykhieva K.1 , Sverguzova S.2 , Fomina E.2 , Vinogradenko Y.2 , Fediuk R.3, 4 , Amran M.5, 6 , Svintsov A.P. 7 , De Azevedo A.R.G. , Gunasekaran M.4
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  • 1 Department of Environmental Engineering, Kazan National Research Technological University, Kazan, 420074, Russian Federation
  • 2 Department of Industrial Ecology, Belgorod State Technological University, V.G. Shukhov, Belgorod, 308012, Russian Federation
  • 3 Polytechnic Institute, Far Eastern Federal University, Vladivostok, 690922, Russian Federation
  • 4 Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russian Federation
  • 5 Department of Civil Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj, 16273, Saudi Arabia
  • 6 Department of Civil Engineering, Faculty of Engineering and IT, Amran University, Amran, 9677, Yemen
  • 7 Department of Civil Engineering, Peoples’ Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 8 LECIV—Civil Engineering Laboratory, UENF—State University of the Northern Rio de Janeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil
Ключевые слова
adsorption; apricot kernel shell; dye; metal ion; modification
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