CHOICE OF MASS EXCHANGE APPARATUS FOR GROUNDWATER DEIRONING

1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University
4
Lviv Polytechnic National University

The absorption of air oxygen by water in the horizontal absorber with bucket-shaped dispersants (HABD) and the vertical apparatus with a continuous bubbling layer (VABL) was studied. It is shown that these processes occur according to the law of First-Order Reactions. It was found that the constant absorption rate is 46.5 times higher in HABD than in VABL at a gas content of 0.05 and a bubble diameter of 0.002 m. It is recommended to use the VABL device for water deironing at pH <6, and for pH greater than 6.0 - HABD.

1. Yavorsʹkyy, V.T., Savchuk, L.V., Rubay, O.I. (2011). Perspektyvni napryamky ochyshchennya sverdlovynnykh vod vid spoluk Ferumu [Promising directions of well water purification from iron compounds]. Visnyk NU “Lʹvivsʹka politekhnika”, Khimiya, tekhnolohiya rechovyn ta yikh zastosuvannya, , № 70, 50-54 [in Ukrainian].

2. Morgan, B., Lahav, О. (2007). The effect of pH on the kinetics of spontaneous Fe(II) oxidation by O2 in aqueous solution – basic principles and a simple heuristic description. Chemosphere. Vol.68,  No. 11.  P.2080-2084. https://doi.org/10.1016/j.chemosphere.2007.02.015

3. Gunnars, A., Blomqvis,t S., Johansson, P., Andersson, C. (2002).Formation of Fe(III) oxyhydroxide colloids in freshwater and brackish seawater, with incorporation of phosphate and calcium. Geochimica et Cosmochimica Acta.Vol.66 , No.5, 745-758.

4. Аverina, Y.М. (2016). Intensifikacyya processa  aeracii pri udalenii ionov geleza iz vody [Intensification of the aeration process during the removal of iron ions from water](Extended abstract of candidate’s thesis). Russian University of Chemical Technology named after D.I. Mendeleev. Moskaw [in Russia].

5. Yavorskiy, V., Kalymon, Ya., Rubai, O. (2015). Kinetics of ferrum(II) ions oxidation by air oxygen in water in horizontal absorber withbucket-like dispersers. Chemistry & Chemical Technology, Vol.9 ,No. 4, 503-507. https://doi.org/10.23939/chcht09.04.503

6. Zolotova, Ye.F., Ass, G.YU. (1975). Ochistka vody ot zheleza, margantsa, ftora i serovodoroda. [Water purification from iron, manganese, fluorine and hydrogen sulfide] Moskwa: Stroyizdat, 176 p. [in Russia].

7. Golovin, V.L. (2003) Problemy ochistki podzemnykh vod ot ustoychivykh form zheleza [Problems of groundwater treatment from stable forms of iron] Melioratsiya i vodnoye khozyaystvo, № 6, 39-41 [in Russia].

8. Orlov, V., Kvartenko, O., Martynov, S., Hordiyenko, YU. (2003). Znezaliznennya pidzemnykh vod dlya pytnykh tsiley [Deironing of groundwater for drinking purposes. UDUVGP, Exactly]. UDUVHP, Rivne[in Ukrainian].

9. Howe, K., Hand, D., Crittendenetal, J. (2012). Principles of water treatment. Hoboken, New Jersey: John Wiley & Sons, Inc., 674 p.

10. Dzyubo, V. V., Alferova, L. I. (2002). Izucheniye kineticheskikh parametrov protsessa aeratsii- degazatsii podzemnykh vod [Study of the kinetic parameters of the process of aeration-degassing of groundwater] Vesti Tomskogo gos. arkh.-str. un-ta: Tomsk, № 1 (6), 171–181. [in Russia].

11. Gomelya, M., Tverdokhlib, M., Shabliy, T., Radovenchyk, V., Linyucheva, O. (2021). Sorbent-Catalyst for Acceleration of The Iron Oxidation. Journal of Ecological Engineering, 22(3), 221-230. doi: 10.12911/22998993/133030

12. Averina, J.M.Zhukov, D.Y.Kurbatov, A.Y.Kaliakina, G.E.Panfilov, V.I. (2018). Methods of intensification of iron-containing natural water purification processes. International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM,18, 345-350.

13. Yavorskiy, V., Helesh, A. (2015).Theoretical analysis of efficiency of horizontal apparatus with bucket-like dispersers in the dust trapping system. Chemistry & Chemical Technology. Vol.9, No. 4., 471-478. https://doi.org/10.23939/chcht09.04.471

14. DSTU ISO 633262003 «Spektrometrychnyy metod vyznachennya ferumu z vykorystannyam 1,10 fenantrolinu»[ "Spectrometric method for the determination of iron using 1.10 phenanthroline"][in Ukrainian].

15. Kalymon, YA.A., Znak, Z.O, Helesh, A.B, Savchuk, L.V. (2018). Doslidzhennya doslidzhennya protsesu pohlynannya v aparati z sutsilʹnym barbotazhnym sharom  [Research study of the absorption process in the apparatus with a continuous bubbling layer].  Voprosy Khimii i Khimicheskoi Tekhnologii, №(5), 102–110[in Ukrainian].