Features of Freezing Processes of Aqueous Solutions
Journal Title: Современное промышленное и гражданское строительство - Year 2018, Vol 14, Issue 2
Abstract
The freezing processes of next salts solutions were studied: sodium chloride, potassium chloride and calcium chloride and ion transfer of salts to ice. The concentrations of salts were determined by the conductometric method and by the titration of chloride and calcium ions. When desalination of waters of high mineralization by the method of freezing, one cycle of the bulk crystallization process does not ensure the production of fresh water by salinity less than 1 000 mg/dm3. An increase in the concentration of solutions of sodium chloride, potassium chloride and calcium chloride does not affect the distribution of salts between ice and brine, which indicates a loose structure of ice. Reducing the time of freezing leads to a slight increase in the degree of water desalination. The fraction of formed ice for the range of concentrations of initial solutions from 5 to 25 g/dm3 with identical freezing time is longer for solutions of sodium chloride and decreases successively for solutions of potassium chloride and calcium chloride.
Authors and Affiliations
Sergey Vysotsky
Keywords
Related Articles
- EP ID EP535981
- DOI -
- Views 128
- Downloads 0
Dynamic Transformation of Objects Typical Building under Renovation
In the article the issues of dynamic transformation of typical buildings and constructions have been considered at the first time. Modern trends of towns and cities development place architects, urban planners and engine...
Investigation of Sound Insulation of Light Multi-Layered Enclosures
This article presents the results of theoretical and experimental studies about sound insulation of multi-layered light barriers. Calculation of sound insulation of structures was performed according to the theory of sel...
The Use of Mathematical Methods for Solving Urban Problems for Transport-Planning Structure of the City
The article describes the main lines of research related to the use of different methods and approaches to address a variety of urban problems on the organization of transportation and city planning structure. On the bas...
Climatic Problems of Construction
Based on the material systematized by the author, the article discusses some of the problems associated with the impact of climatic factors (primarily temperature and humidity) that arose during the erection of a number...
Influence of Hardening Conditions on the Properties of Cement-free Pressed Slag Concrete Based on Sodium Liquid Glass
In the article it has been presented results of researches of properties of slag concretes on the basis of sodium silicate with a concentration 1 300 kg/m3 and silica module 2.9. It has been developed nonconcrete slag co...