Kinetics of hypso anhydrites dissolution in water. Experimental studies
https://doi.org/10.33623/0579-9406-2019-3-93-96
Abstract
Experimental study of kinetics of dissolution of hypso anhydrites at 25 ᵒC made it possible to formulate model of the process in the form of a balance equation for the kinetics of dissolution of gypsum, anhydrite (first and second orders, respectively) and kinetics of precipitation of gypsum (second order). The processing of the experimental data were carried out on the basis of the solution of the Riccati equation. When taking into account the common-ion effect on the solubility of gypsum and anhydrite, the calculated values turned out to be more comparable with the experimental ones.
About the Authors
A. L. Lebedev
Moscow State University
Russian Federation
Faculty of Geology. 119991, Moscow, GSP-1, Leninskiye Gory, 1
Russian Federation
Faculty of Geology. 119991, Moscow, GSP-1, Leninskiye Gory, 1
I. V. Avilina
Moscow State University
Russian Federation
Faculty of Geology. 119991, Moscow, GSP-1, Leninskiye Gory, 1
Russian Federation
Faculty of Geology. 119991, Moscow, GSP-1, Leninskiye Gory, 1
References
1. Корн Г., Корн Т. Справочник по математике для научных работников и инженеров. М.: Наука, 1978. 832 с.
2. Лебедев А.Л. Кинетика растворения гипса в воде // Геохимия. 2015. № 9. С. 828–841.
3. Лебедев А.Л., Косоруков В.Л. Растворимость гипса в воде (25ᵒC) // Геохимия. 2017. № 2. С. 171–177.
4. Печеркин А.И. Геодинамика сульфатного карста. Иркутск: Иркут. гос. ун-т, 1986. 172 с.
5. Шестаков В.М., Невечеря И.К., Авилина И.В. Моделирование контаминации патогенных микроорганизмов в подземных водах. М.: Академкнига, 2007. 95 c.
6. Kontrec J., Kralj D., Brecevic L. Transformation of anhydrous calcium sulphate into calcium sulphate dihydrate in aqueous solutions // J. Crystal Growth. 2002. Vol. 240. P. 203–211.
7. Serafeimidis K., Anagnostou G. On the time-development of sulphate hydration in anhydritic swelling rocks // Rock Mech. Rock Eng. 2013. Vol. 46. P. 619–634.
8. Sievert T., Wolter A., Singh N.B. Hydration of anhydrite of gypsum (CaSO4.II) in a ball mill // Cement and Concrete Res. 2005. Vol. 35. P. 623–630.
Review
For citations:
Lebedev A.L., Avilina I.V. Kinetics of hypso anhydrites dissolution in water. Experimental studies. Moscow University Bulletin. Series 4. Geology. 2019;(3):93-96. (In Russ.) https://doi.org/10.33623/0579-9406-2019-3-93-96
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