- Tytuł:
-
Środowiskowe aspekty wymywania składników mineralnych z popiołów lotnych i żużli elektrownianych
Environmental aspects of the leaching of mineral components from power plants fly ashes and slags - Autorzy:
-
Adamczyk, Zdzisław
Harat, Andrzej
Jaguś, Andrzej
Porszke, Andrzej - Powiązania:
- https://bibliotekanauki.pl/articles/2163401.pdf
- Data publikacji:
- 2022
- Wydawca:
- Akademia Techniczno-Humanistyczna w Bielsku-Białej
- Tematy:
-
odpady paleniskowe
popiół lotny
żużel
test wymywalności
migracja substancji chemicznych
combustion waste
fly ash
slag
leachability test
migration of chemical substances - Opis:
- Leachability of chemical substances from waste produced during fuel combustion in a power plant has been investigated. The aim of the research was to identify the chemical composition of eluates obtained from fly ashes and slags subjected to the leaching test. The results of leaching tests indicate potential environmental hazards related to the migration of chemical substances. Migration can occur both during the storage of waste and due to the weathering of usable materials, including those made from waste. Leachability of the following substances has been analysed: sodium, potassium, chlorides, sulphates, arsenic, zinc, cadmium, copper, lead, nickel and chromium. The analysis of the results has demonstrated, above all, that fly ash eluates contain much more substances than slag eluates. This is particularly evident in the case of chlorides and sulphates, as well as nickel, which practically was not found in slag eluates. The leached substances included among others zinc, lead, chromium, which are potentially toxic to living organisms. It should be noted, however, that the contents of these substances in the eluates did not exceed the permissible concentrations in industrial wastewater discharged into the environment. Exceedances occurred only in the case of sulphates contained in ash eluates. The concentrations of a given substance in the tested eluates were found to be different during the entire research period. These differences, especially in fly ash eluates, reached several dozen and even more than one hundred percent. This shows that the use of power plant waste in civil or water engineering should be preceded by an analysis of potential environmental impact.
- Źródło:
-
Polish Journal of Materials and Environmental Engineering; 2022, 4(24); 21-29
2720-1252 - Pojawia się w:
- Polish Journal of Materials and Environmental Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł