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ArticleName Complex coagulants produced from bulk waste and industrial products
DOI 10.17580/tsm.2021.01.01
ArticleAuthor Kuzin E. N., Kruchinina N. E.
ArticleAuthorData

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

E. N. Kuzin, Associate Professor at the Department of Industrial Ecology, Candidate of Technical Sciences, e-mail: e.n.kuzin@muctr.ru
N. E. Kruchinina, Dean of the Faculty of Biotechnology and Industrial Ecology, Deputy Head of the Department of Industrial Ecology, Professor, Doctor of Technical Sciences, e-mail: krutch@muctr.ru

Abstract

A series of experiments has been conducted and samples of complex coagulants have been obtained from the by-products of apatite-nepheline ore flotation (nepheline concentrate) and from refractory production waste — i. e. synthetic brucite. It was established that aqueous solutions of titanium tetrachloride can be used as an acid leaching reagent. The authors examined the process of recovering the principal active components with aqueous solutions of titanium tetrachloride and identified the priority mechanism behind leaching of metallic components with highly diluted aqueous solutions of titanium tetrachloride. The quantitative and qualitative composition of the obtained solutions of complex coagulants was analyzed. Modified magnesium coagulants were found to demonstrate high efficiency at high pH values of the treated water. At neutral pH values, complex aluminiumbearing reagents proved to be significantly more efficient than the conventional coagulants (i.e. aluminium sulphates and aluminium (oxy)chlorides). The obtained reagents were analyzed for their coagulation ability. Run-off and waste waters generated by an off gas purification unit in use at a non-ferrous metal casting site were used for the analysis. The analysis showed that, with the same dosage used, the modified aluminium coagulant is 30–35% more efficient than the conventional reagents. Experiments aimed at analyzing the water treatment efficiency in the case of water with high pH values (e.g. wastewater generated by a cement plant) showed that due to the use of inoculants in magnesium coagulants the water treatment efficiency can be increased by more than 20%. It was proved that the introduction of titanium compound hydrolysis products helps to significantly increase the water treatment efficiency irrespective of the principal component of the coagulant (aluminium or magnesium salt).
This research was carried out as part of the funding programme aimed to support young research and teaching staff of D. Mendeleev University of Chemical Technology of Russia (Application: З-2020-013.).

keywords Modified coagulant, titanium compound hydrolysis products, wastewater treatment, nepheline, commercial brucite
References

1. Babenkov E. D. Water treatment with coagulants. Moscow : Nauka, 1977. 356 p.
2. Kuzin E. N., Kruchinina N. E. Obtaining of hardened forms of aluminiumsilicate coagulants and their use in water-purification and water treatment. Tsvetnye Metally. 2016. No. 10. pp. 8–13. DOI : 10.17580/tsm.2016.10.01.
3. Velyaev Yu. O., Mayorov D. V., Zakharov K. V. Optimized production of alumosilicic coagulant/flocculant on the basis of sulphuric acid recovery of nepheline: Process examination and development. Khimicheskaya tekhnologiya. 2011. No. 10. pp. 614–620.
4. Smirnov A. D., Kruchinina N. E., Burbaeva I. V., Timasheva N. A. Aluminium-bearing coagulants used for surface water treatment. Ekologiya i promyshlennost Rossii. 2005. No. 8. pp. 4–7.

5. Gablenko M. V., Timasheva N. A., Shalbak Ammar, Shon Le Tuan. Uspekhi v khimii i khimicheskoy tekhnologii. 2008. Vol. 22, No. 13. pp. 44–46.
6. Shabanova N. A., Popov V. V., Sarkisov P. D. The chemistry and technology of nanodispersed oxides : Learner’s guide. Moscow : Akademkniga, 2007. 309 p.
7. Izmaylova N. L. Understanding the coagulation ability of composite coagulants containing titanium and aluminium salts with regard to the paper pulp components. Proceedings of the 17th MESK Conference – 2012 “Ecology of Russia and Neighbouring Territories”. Vol. 1. Novosibirsk State University, Novosibirsk, 2012. pp. 109–110.
8. Izmailova N. L., Lorentson A. V., Chernoberezhskii Y. N. Composite coagulant based on titanyl sulfate and aluminum sulfate. Russian Journal of Applied Chemistry. 2015. Vol. 88, No. 3. pp. 458–462.
9. Zhao Y. X., Gao B. Y., Zhang G. Z., Qi Q. B. et al. Coagulation and sludge recovery using titanium tetrachloride as coagulant for real water treatment: A comparison against traditional aluminum and iron salts. Separation and Purification Technology. 2014. Vol. 130. pp. 19–27.
10. Okour Y., Shon H. K., El Saliby I. Characterization of titanium tetrachloride and titanium sulfate flocculation in wastewater treatment. Water Science and Technology. 2009. Vol. 59, No. 12. pp. 2463–2473.
11. Zhao Y., Gao B., Shon H., Cao B., Kim J. H. Coagulation characteristics of titanium (Ti) salt coagulant compared with aluminum (Al) and iron (Fe) salts. Journal of Hazardous Materials. 2011. Vol. 185. pp. 1536–1542.
12. Zhao Y., Gao B., Cao B. et al. Comparison of coagulation behavior and floc characteristics of titanium tetrachloride (TiCl4) and polyaluminum chloride (PACl) with surface water treatment. Chemical Engineering Journal. 2011. Vol. 166. pp. 544–550.
13. Xu J., Zhao Y., Gao B., Zhao Q. Enhanced algae removal by Ti-based coagulant: comparison with conventional Al-and Fe-based coagulants environmental. Science and Pollution Research. 2018. Vol. 25, No. 13. pp. 13147–13158.
14. Mamchenko A. V., Gerasimenko N. G., Deshko I. I. et al. The investigation of the efficiency of coagulants based on titanium when purifying water. Journal of Water Chemistry and Technology. 2010. Vol. 32, Iss. 3. pp. 167–175.
15. Algermissen D., Cancarevic M., Rekersdrees T. et al. Waste-free strategy at GMH based on four “R” principles. Chernye Metally. 2018. No. 6. pp. 46–52.
16. Sulimova M. A., Sizyakov V. M., Litvinova T. E., Vasilyev V. V. On possibility of the use of metallurgical production wastes as a sorbent in the industrial water cycle. Chernye Metally. 2016. No. 8. pp. 43–49.
17. Oskembekov I. M., Katkeeva G. L. Silica production from heat-andpower facilities waste materials. Obogashchenie Rud. 2014. No. 5. pp. 51–54.
18. Bortnikov А. V., Kutolin V. A., Samukov А. D., Spiridonov P. А. et al. A study of possibilities for granitic rocks processing dispersed waste material utilization in mineral cotton production. Obogashchenie Rud. 2014. No. 6. pp. 33–37.
19. Yeromasov R. G., Nikiforova E. M., Vlasov О. А., Simonova N. S. et al. The Sorsky Mining Complex sulfide molybdenum ores flotation tailings utilization in building ceramics production technology. Obogashchenie Rud. 2014. No. 3. pp. 48–52.
20. Layner A. I., Eremin N. I., Layner Yu. A., Pevzner I. Z. Alumina production. 2nd revised edition. Moscow : Metallurgiya, 1978. 344 p.
21. Matveev V. A., Zakharov V. I., Mayorov D. V., Filyuk A. S. Aluminium potassium sulphates and silicon dioxides produced from silica-containing solutions resulting from sulphuric acid decomposition of nepheline ore. Khimicheskaya tekhnologiya. 2012. No. 2. pp. 68–71.
22. Gayazova E. Sh., Shaykhiev I. G., Fridland S. V. et al. Looking at the use of magnesium sulphate for wastewater treatment in pulp industry. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2012. No. 9. pp. 159–161.
23. Bolshakov K. A. The chemistry and technology of rare and trace elements. Vol. 2. 2nd edition. Moscow : Vysshaya shkola, 1976. 360 p.
24. Lidin R. A., Molochko V. A., Andreeva L. L. Chemical properties of inorganic substances. Moscow : Khimiya, 2000. 282 p.
25. Gandurina L. V., Gavrilova N. N., Kuzin E. N., Raff P. A. Application of the dynamic light scattering technique for characterization of humic acids contained in natural waters. Vodosnabzhenie i sanitarnaya tekhnika. 2017. Vol. 7. pp. 25–28.
26. Kuchumov V. A., Shumkin S. S. Analyzing the chemical composition of the parent alloy when making permanent magnets from Sm – Co alloys. St. Petersburg State Polytechnical University Journal. 2017. Vol. 23, No. 1. pp. 219–225.
27. Kulskiy L. A., Nakorchevskaya V. F., Slipchenko V. A. Active silicic acid and the problem of water quality. Kiev : Naukova dumka, 1969. 235 p.
28. Zhao, Y., S. Phuntsho, Gao B. et al. Preparat ion and characterization of novel polytitanium tetrachloride coagulant for water purification. Environmental Science & Technology. 2013. Vol. 47. pp. 12966–12975.
29. Chekli L., Eripret C., Park S. H., Tabatabai S. A. et al. Coagulation performance and floc characteristics of polytitanium tetrachloride (PTC) compared with titanium tetrachloride (TiCl4) and ferric chloride (FeCl3) in algal turbid water. Separation and Purification Technology. 2017. Vol. 175. pp. 99–106.
30. Wang T.-H., Navarrete-López A. M., Li S., Dixon D. A. et al. Hydrolysis of TiCl4: Initial steps in the production of TiO2. Journal of Physical Chemistry A. 2010. Vol. 114, Iss. 28. pp. 7561–7570.
31. Galloux J., Chekli L., Phuntsho S., Tijing L. D. et al. Coagulation performance and floc characteristics of polytitanium tetrachloride and titanium tetrachloride compared with ferric chloride for coal mining wastewater treatment. Separation and Purification Technology. 2015. Vol. 152. pp. 94–100. DOI: 10.1016/j.seppur.2015.08.009.
32. Draginskiy V. L., Alekseeva L. P., Getmantsev S. V. Natural water purification technology and coagulation. Moscow : Nauch. izd., 2005. 576 p.
33. Wang X., Gan Y., Guo S,. Ma X. et al. Advantages of titanium xerogel over titanium tetrachloride and polytitanium tetrachloride in coagulation: A mechanism analysis. Water Research. 2018. Vol. 132. pp. 350–360. DOI: 10.1016/j.watres.2017.12.081.
34. Xiaomeng Wang, Minghui Li, Xiaojie Song, Zhihao Che et al. Preparation and evaluation of titanium-based xerogel as a promising coagulant for water/wastewater treatment. Environmental Science & Technology. 2016. Vol. 50, Iss. 17. pp. 9619–9626. DOI: 10.1021/acs.est.6b03321
35. Kolesnikov A. V., Saveliev D. S., Kolesnikov V. A., Davydkova T. V. Recovery of highly dispersed titanium dioxide TiO2 from aqueous solutions of electrolytes by electroflotation. Steklo i keramika. 2018. No. 6. pp. 32–36.
36. Meshalkin V. P., Kolesnikov A. V., Saveliev D. S. et al. Analyzing the physico-chemical efficiency of electroflotation when recovering titanium tetrachloride hydrolysis products from industrial wastewater. Doklady Akademii nauk. 2019. Vol. 486, No. 6. pp. 680–684. DOI: 10.31857/S0869-56524866680-684.

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