OBTAINING ACTIVATED CARBON FROM PLANT WASTE AND EVALUATION OF ITS ADSORPTION PROPER-TIES

  • Лев (Lev) Николаевич (Nikolaevich) Григорьев (Grigoriev) St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376 Email: grig.lev@mail.ru
  • Людмила (Ljudmila) Георгиевна (Georgievna) Веренцова (Verencova) St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376 Email: grig.lev@mail.ru
  • Ольга (Ol'ga) Александровна (Aleksandrovna) Шанова (Shanova) St. Petersburg State Technological University of Plant Polymers, I. Chernykh st., 4, St. Petersburg, 198095 Email: oshanova@gmail.com
  • Анна (Anna) Александровна (Aleksandrovna) Родионова (Rodionova) St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376 Email: oshanova@gmail.com
DOI_disc_logo https://doi.org/10.14258/jcprm.201504577
Keywords: activated carbon, oxidized activated carbon, adsorption, streptomycin, chemisorption, isotherms, equation isotherms, wastewater

Abstract

On the basis of plant waste formed after extraction of the root and rhizome of Siberian ginseng, by gas activation was obtained samples of the activated carbon, for which defined pore volume and content of acidic and alkali groups.  Shows the possibility of using the adsorption method for the extraction of antibiotics from aqueous solutions and wastewater for example, streptomycin. In comparative evaluation of equilibrium, adsorption of streptomycin from model wastewater shown that the obtained activated carbon at low concentration values practically does not differ much from industrial activated carbon with developed dimensional structure (such SKT-type) and can be recommended for practical applications in wastewater treatment. 

It was found that at concentrations of streptomycin in water less than 100 mg ∙ dm -3 use the additionally oxidized activated carbon is not expedient as adsorbent.

To calculate the equilibrium adsorption of streptomycin on obtained activated carbon is proposed to use the equation Dubinin – Radushkevich with the experimentally determined constants; linear form of the equations of Langmuir and Brunauer, Emmett, Teller (BET) during adsorption at low concentrations of streptomycin on the obtained sample are not complied, which limits their use in the calculated practice.

It was determined that the higher values of the adsorption activity of the investigated sample activated carbon is achieved during process of adsorption treatment in a neutral to slightly alkaline solutions.

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Author Biographies

Лев (Lev) Николаевич (Nikolaevich) Григорьев (Grigoriev), St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376
заведующий кафедрой промышленной экологии, доктор технических наук, профессор
Людмила (Ljudmila) Георгиевна (Georgievna) Веренцова (Verencova), St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376
кандидат химических наук, доцент
Ольга (Ol'ga) Александровна (Aleksandrovna) Шанова (Shanova), St. Petersburg State Technological University of Plant Polymers, I. Chernykh st., 4, St. Petersburg, 198095
заведующая кафедрой «Охрана окружающей среды и рациональное использование природных ресурсов», кандидат технических наук
Анна (Anna) Александровна (Aleksandrovna) Родионова (Rodionova), St. Petersburg State Chemical-Pharmaceutical Academy, professora Popova st., 14, St. Petersburg, 197376
магистр экологии, ассистент

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Published
2015-11-05
How to Cite
1. Григорьев (Grigoriev)Л. (Lev) Н. (Nikolaevich), Веренцова (Verencova)Л. (Ljudmila) Г. (Georgievna), Шанова (Shanova)О. (Ol’ga) А. (Aleksandrovna), Родионова (Rodionova)А. (Anna) А. (Aleksandrovna) OBTAINING ACTIVATED CARBON FROM PLANT WASTE AND EVALUATION OF ITS ADSORPTION PROPER-TIES // chemistry of plant raw material, 2015. № 4. P. 93-99. URL: http://journal.asu.ru/cw/article/view/577.
Issue
No 4 (2015)
Section
Technology

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