Obraztsova E.Yu., Kilimnik А.B.The Study of Electrodialysis Treatment of Wastewater through the Synthesis of Ultramicrodispersed Metal Oxide Powders // Journal "Problems of Contemporary Science and Practice" Vernadsky University , Tambov. TSTU publisher house , 2014. (pdf-file) Abstract: It is shown that in the process of electrochemical synthesis of metal oxide powders waste water is produced, the discharge of which is not desirable due to environmental considerations and because of the content of valuable substances. This paper presents the results of the research into the process of electrodialysis treatment of wastewater generated in the synthesis of ultramicrodispersed metal oxide powders on alternating current in a concentrated solution of sodium hydroxide, obtained by neutralization with acetic acid alkali seized by oxide powders of nickel and iron. This reduces the amount of wash water by 60%. It was found that
the concentration of sodium acetate after electrodialysis falls by 33 times. The cleaning time of 200 cm3 water wash using 3-cell
electrodialysis is 5.6 hours. Application of 30-cell electrodializators
reduces the cleaning solution by 10 times.
Orlova N.V., Yashchenko A.G., Orlov A.Yu., Koliukh A.N., Pshichkina D.Yu.Improvement of Crystallisation Stage in Production of Sulfamic Acid // Scientific article. Journal "Transactions of the TSTU", vol. 20 , Tambov. TSTU publisher house , 2014. (pdf-file) Abstract: Identified the basic requirements for the quality of sulfamic acid in all
areas of its application. Was described by a method of industrial production technology sulfamic acid. There was designed laboratory installation to study the crystallization process. The paper studies the influence of temperature and cooling rate on the size distribution, the mass fraction of the basic substance, bulk density and flowability.
There was defined dependence of the yield of the target substance from the initial and final temperature selection. Recommendations on production sulfamic acid with the designed size of crystals are given.
