Influence of Fly Ash Addition on the Immobilisation of Heavy Metals in Sewage Sludge
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
| Status: | |
| Autorzy: | Czechowska-Kosacka Aneta, Niedbała Gniewko, Kolarzyk Paweł |
| Dyscypliny: | |
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| Rok wydania: | 2021 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | Special Issue 1 |
| Wolumen/Tom: | 12 |
| Strony: | 765 - 780 |
| Web of Science® Times Cited: | 2 |
| Scopus® Cytowania: | 2 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 20 sierpnia 2021 |
| Abstrakty: | angielski |
| Municipal sewage sludge is characterized by high soil forming and fertilizing potential. Therefore, the use of sewage sludge for soil fertilization seems the most efficient method of its disposal because valuable biogenic elements, such as: N, P, Mg or K, are reintroduced to the soil. But, the waste product from wastewater treatment plant, except for valuable elements, can contain also hazardous substances, e.g. heavy metals which can limit land use of the sludge. Fly ash generated from the lignite combustion is categorized as high-calcium ash, and for this reason it may be used for stabilization and immobilization of heavy metals in sewage sludge, instead of calcium oxide. The paper presents the results of the laboratory study on the influence of adding the fly ash, generated during the lignite combustion, to municipal sewage sludge (in doses 0 to 1kg/kg d.m.) and the reaction time (directly after mixing, after 14 and 28 days), on the chemical transformations and mobility of heavy metals in sewage sludge. The results showed that fly ash addition increased the percentage of the low mobile fractions of the metals. |
