The kinetics of adsorption of ammonium ions under dynamic conditions has been studied. A mathematical model of the process was built. The mass transfer coefficient was calculated depending on the intensity of the change of location. It was established that ion exchange occurs in external and internal diffusion regions. The rate constants of ion exchange for the region of external and internal diffusion were calculated.

1. Bernal, M. P., Lopez-Real, J. M., & Scott, K. M. (1993). Application of natural zeolites for the reduction of ammonia emissions during the composting of organic wastes in a laboratory composting simulator. Bioresource Technology, 43(1), 35-39. doi:

2. de Haro Martí, M. E., Neibling, W. H., Chen, L., & Chahine, M. (2020). On-farm testing of a zeolite filter to capture ammonia and odors from a dairy manure flushing system. Transactions of the ASABE63(3), 597-607. doi: https://doi: 10.13031/trans.13556

3. Hyvlud, A., Sabadash, V., Gumnitsky, J., & Ripak, N. (2019). Statics and kinetics of albumin adsorption by natural zeolite. Chemistry & Chemical Technology, 1(13), 95-100. doi:

4. Karamanlis, X., Fortomaris, P., Arsenos, G., Dosis, I., Papaioannou, D., Batzios, C., & Kamarianos, A. (2008). The effect of a natural zeolite (clinoptilolite) on the performance of broiler chickens and the quality of their litter. Asian-Australasian Journal of Animal Sciences, 21(11), 1642-1650. doi:

5. Lin, H., Wu, X., & Zhu, J. (2016). Kinetics, equilibrium, and thermodynamics of ammonium sorption from swine manure by natural chabazite. Separation Science and Technology, 51(2), 202-213. doi:

6. Sabadash, V., Gumnitsky, J., Lyuta, O., & Pochapska, I. (2018). Thermodynamics of (NH4+) cation adsorption under static conditions. Chemistry & Chemical Technology, 12(2), 143-146. doi:

7. Sabadash, V., Gumnitsky, J., & Hertsyk, T. (2018).Thermodynamic studies on the adsorption behavior of ammonium on zeolite.  International joint forum LEA'2018 & YSTCMT'2018, November 22-24th  2018. Lviv, Ukraine. doi:

8. Sabadash, V., Gumnitsky, Y., & Liuta, O. (2020). Investigation of the process of ammonium ion adsorption by natural and synthetic sorbents by methods of multidimensional cluster analysis. Environmental Problems, 5(2), 113-118. doi:

9. Soudejani, H. T., Kazemian, H., Inglezakis, V. J., & Zorpas, A. A. (2019). Application of zeolites in organic waste composting: A review. Biocatalysis and Agricultural Biotechnology, 22, 101396. doi:

10. Stelwagen, K., Beukes, P. C., & Hemmings, C. (2020). Effect of zeolite administration on nitrogen metabolism and excretion in lactating dairy cows offered pasture herbage. Animal Production Science, 61(6), 560-567. doi:

11. Wang, X., Bai, Z., Yao, Y., Gao, B., Chadwick, D., Chen, Q., & Ma, L. (2018). Composting with negative pressure aeration for the mitigation of ammonia emissions and global warming potential. Journal of Cleaner Production, 195, 448-457. doi:

12. Wijesinghe, D. T. N., Dassanayake, K. B., Scales, P. J., Sommer, S. G., & Chen, D. (2018). Effect of Australian zeolite on methane production and ammonium removal during anaerobic digestion of swine manure. Journal of environmental chemical engineering, 6(1), 1233-1241. doi: