THE EFFECT OF CHEMICAL TREATMENT OF RECYCLED WATER IN THE PRODUCTION OF MINERAL WOOL ON ITS SALINITY AND LIGHTNESS
https://doi.org/10.21122/1683-6065-2017-4-77-83
Abstract
In progress to assess the impact of chemical treatment of recycled water in the production of mineral wool, its salinity and the degree of clarification found that the most suitable reagent to achieve the objectives is a 25% aqueous ammonia solution. It is shown that the optimum quantity of ammonia to initiate the process of deposition is in the range of 4–6 ml/dm3, lower number gives a noticeable lightening of recycled water and reduction of solids, a larger leads to a re-dissolution of already formed sludge and therefore to reduce the share of bleached water and increase the content of dissolved salts.
Installed three stage character of the process of interaction of ammonia and recycled water. It is revealed that the deposition process in the recycling system water – ammonia at the initial stage limits the chemical stage of nucleation (the formation of a crystalline precipitate), followed by reaction at the interface (the formation on the surface of the original germs of continuous product.
About the Authors
A. S. Panasyugin
Belarusian National Technical University
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
S. V. Grigor’ev
Belarusian National Technical University
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
A. I. Teran
Belarusian National Technical University
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
Belarus
Minsk, Belarus, 65, Nezavisimosti avе.
A. R. Tsyganov
Belarusian State Technological University
Belarus
Minsk, Belarus,13A, Sverdlova str.
Belarus
Minsk, Belarus,13A, Sverdlova str.
N. P. Masherova
Military Academy of the Republic of Belarus
Belarus
Minsk, Belarus, 220, Nezavisimosti avе.
Belarus
Minsk, Belarus, 220, Nezavisimosti avе.
N. D. Pawlowski
Grodno State Medical University
Belarus
Grodno, Belarus, 80, Gorky str.
Belarus
Grodno, Belarus, 80, Gorky str.
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Review
For citations:
Panasyugin A.S., Grigor’ev S.V., Teran A.I., Tsyganov A.R., Masherova N.P., Pawlowski N.D. THE EFFECT OF CHEMICAL TREATMENT OF RECYCLED WATER IN THE PRODUCTION OF MINERAL WOOL ON ITS SALINITY AND LIGHTNESS. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2017;(4):77-83. (In Russ.) https://doi.org/10.21122/1683-6065-2017-4-77-83
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