Autor: Gomelya, Nikolai - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study of the Process of Electro Evolution of Copper Ions from Waste Regeneration Solutions
Autorzy:: Trokhymenko, Ganna
Magas, Nataliya
Gomelya, Nikolai
Trus, Inna
Koliehova, Anastasiia
Powiązania:: https://bibliotekanauki.pl/articles/125316.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metals
electrochemical methods
chemical reagents
wastewater treatment
Opis:: The article presents the results of the study on the process of copper electroevolution from the regeneration solutions in one- and two-chamber electrolyzers at different concentrations of sulfuric acid and the solutions of copper chlorides at different concentrations of hydrochloric acid – in a three-chamber electrolyzer. The conditions of electrochemical recovery of heavy metals from acidic and saline solutions were determined. It was shown that the most effective recovery of heavy metal cations from hydrochloric acid solutions occurs in three-chamber electrolyzers. On the basis of the results obtained, a technological scheme of a local plant for treatment of washing water of galvanic industries was proposed.
Źródło:: Journal of Ecological Engineering; 2020, 21, 2; 29-38
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide
Autorzy:: Ivanenko, Olena
Gomelya, Nikolai
Shabliy, Tetyana
Trypolskyi, Andrii
Nosachova, Yuliia
Leleka, Serhii
Trus, Inna
Strizhak, Peter
Powiązania:: https://bibliotekanauki.pl/articles/1838428.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: carbon monoxide
flue gas
purification
catalyst
oxidation
conversion
Opis:: The necessity of development of technical solutions that will allow to reduce carbon monoxide emissions of flue gases of industrial productions is substantiated. It is shown that the most rational design solution to the problem of carbon monoxide pollution during the firing of electrode blanks is the use of aerated concrete blocks with a catalyst, which can be quickly and conveniently located directly on the carbon material of the “green” electrodes pouring in the subfloor space of the firing furnaces. Modified by oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ -catalysts based on aerated concrete were obtained. It is shown that in an empty reactor in the temperature range 200–400 °С the degree of conversion of carbon monoxide in the absence of a catalyst is zero. It is established that on the investigated catalysts based on aerated concrete 100% oxidation of carbon monoxide is achieved at a temperature of 390 °C in the case of using a mixture of catalyst powders 30% CuO + 70% MnO2, 40% CuO + 60% MnO2, 50% Fe (FexCr1-x) 2O4 + 50% MnO2; 50% Fe3O4 + 50 % MnO2. It is determined that the addition of ferrite catalyst powder in aerated concrete in a mixture or without manganese dioxide does not critically affect the mechanical properties of the products.
Źródło:: Journal of Ecological Engineering; 2021, 22, 5; 104-113
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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