Alkaline scale formation restriction in desalination plants by means of antiscalant additives
✍ Scribed by O.I. Martynova; L.G. Vasina; A.V. Boglouvsky; O.V. Gyseva
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 416 KB
- Volume
- 83
- Category
- Article
- ISSN
- 0011-9164
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✦ Synopsis
Experimental studies of antiscaling compounds with various functional groups were accomplished. Their influence on alkaline scale crystallization and analysis of the results obtained within the scope of the Gibbs-Folmer model are given, taking into account the chemical equilibrium in the solution.
Specific surface energy changes of CaC03 and Mg(OH), nuclei were established when dosing the antiscalants. The influence of antiscaling compounds on mass transfer processes was investigated in cases of scale formation on heat exchange surfaces. Mass transfer coefficients and their dependence on antiscalant doses were established. The data obtained were used to lay out an alkaline scale formation restriction system for desalination plants with horizontal-tube film apparatuses using Caspian Sea water. Results of these installation tests and their water chemistry are reported.