Szczegóły publikacji
Opis bibliograficzny
Heavy metal control and dry matter assessment in digested sewage sludge for biogas production / Krzysztof Michalski, Magdalena Kóska-Wolny, Krzysztof CHMIELOWSKI, Michał Gąsiorek, Klaudiusz Grübel, Konrad Kalarus, Wiktor Halecki // Energies [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1073. — 2025 — vol. 18 iss. 10 art. no. 2644, s. 1–20. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 17–20, Abstr. — Publikacja dostępna online od: 2025-05-20
Autorzy (7)
- Michalski Krzysztof
- Kóska-Wolny Magdalena
- AGHChmielowski Krzysztof Jan
- Gąsiorek Michał
- Grübel Klaudiusz
- Kalarus Konrad
- Halecki Wiktor
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 160262 |
|---|---|
| Data dodania do BaDAP | 2025-06-13 |
| Tekst źródłowy | URL |
| DOI | 10.3390/en18102644 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Energies |
Abstract
The expansion of sewage networks and treatment facilities results in considerable amounts of municipal sludge, which is essential for biogas production as part of energy diversification efforts. Principal Component Analysis (PCA) demonstrated a strong correlation between biogas production and its utilization in power generation units. Modernization efforts led to an increase in biogas utilization in power units but a decrease in boiler utilization, independent of the overall biogas production levels. The general linear model (GLM) further confirmed that biogas production was positively influenced by the amount of waste digested, while utilization in power units increased post modernization. A repeated measures ANOVA (Analysis of Variance) indicated significant increases in both dry matter and mineral content in digested sludge compared to raw sludge. SIMPER (Similarity Percentage) analysis revealed that the addition of glycerin water significantly reduced the nitrogen, ammonium nitrogen, and calcium content, while modernization increased these elements and slightly decreased the magnesium concentration. Multivariate dispersion analysis showed that samples treated with glycerin water exhibited less variability in metal content. Regression models explored the factors influencing mineral elements and dry mass in fermented sludge. The zinc content was positively associated with mineral content, while copper showed a negative correlation. The addition of glycerin water increased the mineral content, whereas modernization had the opposite effect. The nitrogen content was negatively correlated with dry mass. These findings provide valuable insights into optimizing sewage sludge treatment and biogas production processes by underlining the approaches for enhancing sludge properties to support efficient biogas production.
