Journals →  CIS Iron and Steel Review →  2021 →  #2 →  Back

Chemical Technologies
ArticleName Electroflotation extraction of carbon material powders in the presence of metal ions
DOI 10.17580/cisisr.2021.02.19
ArticleAuthor A. M. Gaydukova, V. A. Kolesnikov, V. A. Brodskiy, A. V. Kolesnikov

Mendeleev University of Chemical Technology of Russia, Moscow, Russia:

A. M. Gaydukova, Cand. Eng., Associate Prof., Dept. “Technologies of inorganic substances and electrochemical processes”, e-mail:
V. A. Kolesnikov, Dr. Eng., Prof., Head of Dept. “Technologies of inorganic substances and electrochemical processes”
V. A. Brodskiy, Cand. Chem., Associate Prof., Dept. “Technologies of inorganic substances and electrochemical processes”, e-mail:
A. V. Kolesnikov, Cand. Eng., Associate Prof., Dept. “Innovative materials and corrosion protection”, e-mail:


Investigations of extraction process for carbon materials after sorption purification of aqueous solutions via electroflotation method with removal of ions of heavy and non-ferrous metals are presented in this work. The data on adsorption of some organic compounds on “OU-B” carbon material powders and aluminium hydroxides are observed. The research results of Fe (III) cations (coagulant) influence on extraction efficiency of “OU-A” carbon materials from aqueous solutions are observed. The effect of metal pH and cation nature on surface parameters of carbon material particles, specifically on electrokinetic potential is studied. It is shown that extraction completeness and efficiency depend directly on the value of electrokinetic potential of coal particles; the particles with minimal absolute surface charge value are extracted mostly completely and effectively, if Fe3+ ions are presented in solution. It was determined that size of particles also has the effect on their extraction efficiency. Based on the obtained data of electrokinetic potential of particles, a flocculant was selected; if it is added to the solution, the range of carbon material extracting concentrations expands to 1 g/l. Based on the obtained data on the electrokinetic potential of the particles, a flocculant was selected, which, when adding it to the solution, expands the range of recoverable concentrations of carbon material to 1 g/l. The technological scheme of carbon materials use for purification of waste water using various extraction technologies for dispersed phase is presented.

The research was conducted under financial support of Mendeleev University of Chemical Technology of Russia (project No. З-2020-003).

keywords Waste water, electroflotation, powders, activated carbon, sorption of organic compounds, surfactants, metal ions, coagulants

1. Moreno Castilla C. Adsorption of Organic Molecules from Aqueous Solutions on Carbon Materials. Carbon. 2004. Vol. 42. pp. 83–94. DOI: 10.1016/j.carbon.2003.09.022.
2. Gupta V. K., Saleh T. A. Sorption of pollutants by porous carbon, carbon nanotubes and fullerene — An overview. Environmental Science and Pollution Research. 2013. Vol. 20. pp. 2828–2843. DOI: 10.1007/s11356-013-1524-1.
3. Upadhyayula Venkata K. K., Deng S., Mitchell M. C., Smith G. B. Application of carbon nanotube technology for removal of contaminants in drinking water: A review. Science of The Total Environment. 2009. Vol. 408. pp. 1–13. DOI: 10.1016/j.scitotenv.2009.09.027.
4. Siriwardane R. V., Shen Ming-Shing, Fisher E. P., Poston J. A. Adsorption of CO2 on Molecular Sieves and Activated Carbon. Energy & Fuels. 2001. Vol. 15 (2). pp. 279–284. DOI: 10.1021/ef000241s.
5. Alaei Shahmirzadi M. A., Hosseini S. S., Luo J., Ortiz I. Significance, evolution and recent advances in adsorption technology, materials and processes for desalination, water softening and salt removal. Journal of Environmental Management. 2018. Vol. 215. pp. 324–344. DOI: 10.1016/j.jenvman.2018.03.040
6. Hu J., Aarts A., Shang R., Heijman B., Rietveld L. Integrating powdered activated carbon into wastewater tertiary filter for micro-pollutant removal. Journal of Environmental Management. 2016. Vol. 177. pp. 45–52. DOI: 10.1016/j.jenvman.2016.04.003.
7. Margot J., Kienle C., Magnet A., Weil M., Rossi L., Felippe de Alencastro L., Abegglen C., Thonney D., Chèvre N., Schärer M., Barrya D. A. Treatment of micropollutants in municipal wastewater: Ozone or powdered activated carbon? Science of The Total Environment. 2013. Vol. 461–462. pp. 480–498. DOI: 10.1016/j.scitotenv.2013.05.034.
8. Löwenberg J., Zenker A., Krahnstöver T., Boehler M., Baggenstos M., Koch G., Wintgens T. Upgrade of deep bed filtration with activated carbon dosage for compact micropollutant removal from wastewater in technical scale. Water Research. 2016. Vol. 94. pp. 246–256. DOI: 10.1016/j.watres.2016.02.033.
9. Mukhin V. M. Environmental Aspects of Activated Carbon Application. Ecology and Industry of Russia. 2014. No. 12. pp. 52–56. DOI: 10.18412/1816-0395-2014-12-52-56.
10. Mukhin V. M. Research of quality of active coals used in water purification. Vodoochistka. Vodopodgotovka. Vodosnabzhenie. 2010. No. 9. pp. 34–36.
11. Krahnstöver T., Wintgens Th. Separating powdered activated carbon (PAC) from wastewater — Technical process options and assessment of removal efficiency. Journal of Environmental Chemical Engineering. 2018. Vol. 6 (5), pp. 5744–5762. DOI: 10.1016/j.jece.2018.09.001.
12. Meinel F., Zietzschmann F., Ruhl A., Sperlich A., Jekel M. The benefits of powdered activated carbon recirculation for micropollutant removal in advanced wastewater treatment. Water Research. 2016. Vol. 91. pp. 97–103. DOI: 10.1016/j.watres.2016.01.009.
13. Luo Y., Guo W., Ngo H. H., Nghiem L. D., Hai F. I., Zhang J., Liang S., Wang C. X. A review on the occurrence of micropollutants in the aquatic environment and their fate and removal during wastewater treatment. Science of the Total Environment. 2014. Vol. 473. pp. 619–642. DOI: 10.1016/j.scitotenv.2013.12.065.
14. Chen S., Tang L., Tao X., He H., Chen L. Exploration on the mechanism of oily-bubble flotation of long-flame coal. Fuel. 2018. Vol. 216. pp. 427–435. DOI: 10.1016/j.fuel.2017.10.126.
15. Chen P., Li H., Yi H., Jia F., Song S. Removal of graphene oxide from water by flocflotation. Separation and Purification Technology. 2018. Vol. 202. pp. 27–33. DOI: 10.1016/j.seppur.2018.03.034.
16. Vu T. P., Vogel A., Kern F., Platz S., Menzel U., Gadow R. Characteristics of an electrocoagulation–electroflotation process in separating powdered activated carbon from urban wastewater effluent. Separation and Purification Technology. 2014. Vol. 134. pp. 196–203. DOI: 10.1016/j.seppur.2014.07.038.
17. Kolesnikov A. V., Than So Htay, Kolesnikov V. A., Kovalenko V. S. Extraction by electroflotation of iron, chromium and aluminium hydroxides from aqueous solutions of sodium chlorides and sulphates in the presence of Mg2+, Ca2+ and surfactants of different types. CIS Iron and Steel Review. 2020. Vol. 20. pp. 61–65. DOI: 10.17580/cisisr.2020.02.13.
18. Mazhuga A. G., Kolesnikov V. A., Sakharov D. A., Korolkov M. V. Man-caused wastes of I–II danger classes — a resource for fabrication of secondary products. Teoreticheskaya i prikladnaya ekologiya. 2020. No. 4. pp. 61–67.
19. Gaydukova A., Kolesnikov V., Stoyanova A., Kolesnikov A. Separation of highly dispersed carbon material of OU-B grade from aqueous solutions using electroflotation technique. Separation and Purification Technology. 2020. Vol. 245. 116861. DOI: 10.1016/j.seppur.2020.116861.
20. Ladygina Yu. Sh., Mets E. A., Kolesnikov A. V. Adsorption of anion surface-active substances on freshly formed sediment of metal hydroxide. Uspekhi v khimii i khimicheskoy tekhnologii. 2017. Vol. 31. No. 6. pp. 46–48.

Full content Electroflotation extraction of carbon material powders in the presence of metal ions