Autor: Trokhymenko, Ganna - 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:: Utilization of Modified Biosorbents Based on Walnut Shells in the Processes of Wastewater Treatment from Heavy Metal Ions
Autorzy:: Halysh, Vita
Trus, Inna
Gomelya, Mykola
Trembus, Iryna
Pasalskiy, Bogdan
Chykun, Nadiia
Trokhymenko, Ganna
Remeshevska, Iryna
Powiązania:: https://bibliotekanauki.pl/articles/125359.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: spent biosorbent
utilization
building materials
low-waste technology
Opis:: The problem of utilizing plant wastes of the agro-industrial complex is equally important and urgent. In this regard, it is advisable to develop a complex technology of plant waste application to solve the ecological problems of environmental pollution with heavy metals. Modification of walnuts shells with orthophosphoric acid has proven to be a promising process for obtaining the biosorbents with the efficient sorption properties. It was found out that the increase in the concentration of inorganic acid in modification time promotes the improvement in sorption capacity. Such biosorbents can be used in low-waste water demineralization systems. The utilization of waste biosorbents through the use in the composition of building materials is effective from an economic point of view. It was shown that the biosorbent acts as a fine additive; the increase in normal density and acceleration in hardening time takes place. At the same time, the compressive strength of the cement with the application of biosorbents decreases slightly. The results show that the modified walnuts shells have a slightly adverse effect on the hardening time of cement.
Źródło:: Journal of Ecological Engineering; 2020, 21, 4; 128-133
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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