INVESTIGATION OF SORPTION PROPERTIES OF MECHANICALLY ACTIVATED ZEOLITE FROM THE TAIZHUZGEN DEPOSIT

The paper investigates the treatment of wastewater of metallurgical enterprise MC MC ‘Kazzinc’ LLP from metal ions such as copper (II), zinc and lead (II). The possibility of wastewater treatment from metal ions with the help of mechanically activated natural zeolite of Taizhuzgen deposit (East Kazakhstan) has been substantiated. Adsorption ability of zeolite depending on its fractional composition has been studied. The effective method of sorbents modification – mechanical activation – is shown. By results of experimental researches it is established that the received mechanically activated sorbent on the basis of natural zeolite is perspective for deep treatment of multicomponent waste waters of metallurgical enterprises. It was found that the sorption activity of zeolite directly depends on the degree of mechanically activated sorbent. The highest degree of industrial wastewater purification from Cu²⁺, Zn²⁺, Pb²⁺ ions (53.85%, 88.52% and 92.11%, respectively) is achieved at 3-hour contact of mechanically activated sorbent (optimal size 50-100 microns) with wastewater and the ratio (1-2) g:100 cm³. The adsorption isotherms of copper (II), zinc and lead (II) ions on mechanically activated zeolite of the Tayzhuzgen deposit were constructed for the first time in accordance with the Langmuir and Freundlich models.

1. Adsorption of Heavy Metals: Mechanisms, Kinetics, and Applications of Various Adsorbents in Wastewater Remediation-A Review / Z. Raji et al // Waste. – 2023. – № 1. – R. 775-805. https://doi.org/10.3390/waste1030046. (In English).

2. Senila M. Modification of natural zeolites and their applications for heavy metal removal from polluted environments: Challenges, recent advances, and perspectives / M. Senila, O. Cadar // Heliyon. – 2024. – № 10(3). – R. e25303. https://doi.org/10.1016/j.heliyon.2024.e25303. (In English).

3. Application of clay minerals as adsorbents for removing heavy metals from the environment / Sh. Xiea et al // Green and Smart Mining Engineering. – 2024. – № 1(3). – R. 249-261. https://doi.org/10.1016/j.gsme.2024.07.002. (In English).

4. Ugwu E.I. A review on zeolites as cost-effective adsorbents for removal of heavy metals from aqueous environment / E.I. Ugwu, A. Othmani, C.C. Nnaji // International Journal of Environmental Science and Technology. – 2022. – № 19. – R. 8061-8084. https://doi.org/10.1007/s13762-021-03560-3. (In English).

5. Rodríguez-Iznaga I. Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications / I. Rodríguez-Iznaga, M.G. Shelyapina, V. Petranovskii // Minerals. – 2022. – № 12. – R. 1628. https://doi.org/10.3390/min12121628. (In English).

6. Tasić Ž.Z. Application of natural zeolite in wastewater treatment-A review / Ž.Z. Tasić, G.D. Bogdanović, M.M. Antonijević // Journal of Mining and Metallurgy. – 2019. – № 55A (1). – R. 67-79. https://doi.org/10.5937/JMMA1901067T. (In English).

7. Kordala N. Zeolite Properties, Methods of Synthesis, and Selected Applications / N. Kordala, M. Wyszkowski // Molecules. – 2024. – № 29. – R. 1069. https://doi.org/10.3390/molecules29051069. (In English).

8. Ates A. The effect of various treatment conditions on natural zeolites: ion exchange, acidic, thermal and steam treatments / A. Ates, C. Hardacre // Journal of Colloid and Interface Science. – 2012. – № 372. – R. 130-140. https://doi.org/10.1016/j.jcis.2012.01.017. (In English).

9. Modifying Natural Zeolites to Improve Heavy Metal Adsorption / E. Kuldeyev et al // Water. – 2023. – № 15. – R. 2215. https://doi.org/10.3390/w15122215. (In English).

10. Adsorption of heavy metals on natural zeolites: a review / L. Velarde et al // Chemosphere. – 2023. – № 328. – R. 138508. https://doi.org/10.1016/j.chemosphere.2023.138508. (In English).

11. Study of the selection mechanism of heavy metal (Pb2+, Cu2+, Ni2+, and Cd2+) adsorption on clinoptilolite / M. Sprynskyy et al // Journal of Colloid and Interface Science. – 2006. – № 304(1). – R. 21-28. https://doi.org/10.1016/J.JCIS.2006.07.068. (In English).

12. Characterization of Zeolite Types Contained in Sangaredi Bauxite in the Republic of Guinea / M. Sylla et al // Journal of Materials Science and Chemical Engineering. – 2024. – № 12. – R.1-14. https://doi.org/10.4236/msce.2024.1211001. (In English).

13. Taffarel S.R. On the removal of Mn2+ ions by adsorption onto natural and activated Chilean zeolites / S.R. Taffarel, J. Rubio // Minerals Engineering. – 2009. – № 22(4). – R. 336-343. https://doi.org/10.1016/j.mineng.2008.09.007. (In English).

14. Patent KZ (13) A (11) 14907 51) 7 C01B 39/00 Sposob modifikatsii prirodnykh neorganicheskikh sorbentov / Ergozhin E.E., Akimbaeva A.M., Bektenov N.A., Dzhusipbekov U.ZH., Kappar B.K., Gabdulina YU.R., Bazilbaev S.M., Sadvokasova A.B., opubl. 15.10.2004. (In Russian).

15. Yerbolov S. Waste Water Purification from Metal Ions by Ultra-Dispersed Natural Sorbents / S. Yerbolov , G. Daumova // Journal of Ecological Engineering. – 2022. – № 23(1). – R. 43-50. https://doi.org/10.12911/22998993/143867. (In English).

16. RD Rukovodstvo po khimicheskomu analizu poverkhnostnykh vod sushi, pod red. A.D. Semenova. L., Gidrometeoizdat, 1977 – 345 s. (In Russian).

17. Khumarbekuly E. Issledovanie sorbtsii ionov tyazhelykh metallov sorbentami na osnove modifitsirovannykh prirodnykh tseolitov iz promyshlennykh stochnykh vod // mag. dissertatsiya, Kazakhskii Natsional'nyi issledovatel'skii tekhnicheskii universitet imeni K.I. Satpaeva, 2022. – 60 s. (In Russian).