Author:
Kuznietsov P.N.,Biedunkova O.О.,Yaroshchuk O.V.
Abstract
The article presents research results on carbonate system components of cooling water, which has previously undergone water treatment by liming, depends on the cycle of concentration and absorption of carbon dioxide, which simulate the processes of evaporation and aeration in circulation cooling systems (CCS) of power plants. pH was an indicator chosen to identify components of carbonate system components of the given research. Were carried out experimental studies, control data were analyzed regarding pH and carbonate system component changes of technological and circulating water of the CCS during water treatment by liming according to the stabilization treatment method, namely the use of mineral – sulphuric acid. It was shown that during cooling water aeration in the cooling tower the absorption of carbon dioxide from the air occurs, which causes a shift in the equilibrium of the carbonate system with a decrease or increase of carbonate alkalinity, bicarbonate content, carbonate ions and pH with or without applying stabilization treatment by sulphuric acid.
Publisher
Problems of Atomic Science and Technology
Subject
General Computer Science,General Arts and Humanities,General Medicine,General Medicine,General Medicine,General Medicine,Automotive Engineering,General Medicine,General Medicine,General Earth and Planetary Sciences,General Environmental Science
Reference18 articles.
1. K. Rahmani, R. Jadidian, S. Haghtalab. Evaluation of inhibitors and biocides on the corrosion, scaling and biofouling control of carbon steel and copper–nickel alloys in a power plant cooling water system // Desalination. 2016, v. 393, p. 174-185; https://doi.org/10.1016/j.desal.2015.07.026
2. S. Li, X. Zhang, S. Zheng, S. Duan, J. Cui, H. Zhang. NaHCO3/Na2CO3 as an inhibitor of chlorideinduced mild steel corrosion in cooling water: Electrochemical evaluation // Journal of Industrial and Engineering Chemistry. 2021, p. 235-243; https://doi.org/10.1016/j.jiec.2020.12.026
3. J. Cole, Y.T. Prairie. Dissolved CO2 in Freshwater Systems // Reference Module in Earth Systems and Environmental Sciences. 2014; https://doi.org/10.1016/B978-0-12-409548-9.09399-4
4. N.N. Osadchaya, V.I. Osadchiy. To the question of pollution of the waters of the Dnieper cascade with organic substances // Voprosy Khimii i Khimicheskoi Tekhnologii: Special Edition. 2002, N 5, p. 250-254 (in Russian).
5. J.Mark Mitchell, Oliver E. Jensen, K. Andrew Cliffe, M. Mercedes Maroto-Valer. A model of carbon dioxide dissolution and mineral carbonation kinetics // Proceedings: Mathematical, Physical and Engineering Sciences. 2009, v. 466, N 2117, p. 1265-1290; https://doi.org/10.1098/rspa.2009.0349