Szczegóły publikacji
Opis bibliograficzny
Distribution of selected heavy metals among the products of municipal sewage sludge pyrolysis / Dorota MAKOWSKA, Karolina KOLARZ, Zuzanna Stypka // W: Contemporary problems of power engineering and environmental protection 2025 [Dokument elektroniczny] / ed. by Krzysztof Pikoń, Max Lewandowski. — Wersja do Windows. — Dane tekstowe. — Gliwice : Publishing House of Silesian University of Technology, cop. 2026. — Publikacja zawiera materiały z XIII Międzynarodowej Konferencji Naukowej Environmental Protection and Energy (EPAE 2025) : 5 grudnia 2025. — e-ISBN: 978-83-68390-63-6. — S. 417–425. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 424–425, Abstr.
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 167178 |
|---|---|
| Data dodania do BaDAP | 2026-05-11 |
| Tekst źródłowy | URL |
| Rok publikacji | 2026 |
| Typ publikacji | fragment monografii pokonferencyjnej |
| Otwarty dostęp |  |
| Creative Commons | |
| Wydawca | Politechnika Śląska |
Abstract
Sewage sludge management is becoming an increasingly important issue due to the growing volume of waste generated by wastewater treatment plants and the need to reduce environmental risks in line with circular economy principles. One of the promising methods for sludge valorization is pyrolysis. However, the presence of heavy metals in sewage sludge remains a key challenge for the safe use of pyrolysis products. This study aimed to investigate the distribution of selected heavy metals (Ni, Cu, Pb, Zn, and Mn) during the pyrolysis of municipal sewage sludge and to assess the effect of temperature and residence time on their partitioning between the pyrolysis products. The experiments were conducted using sewage sludge from a large municipal treatment plant. Pyrolysis was carried out at 500°C and 700°C for 5, 8, and 12 minutes. The resulting products were analyzed using atomic absorption spectroscopy (AAS) after appropriate digestion procedures. Most of the analyzed metals were retained in the solid phase, leading to their enrichment in biochar, while only a small portion was transferred to the liquid products. Increasing temperature and residence time generally enhanced metal concentration in the char, except for Pb, which showed decreased retention at 700 °C and partial transfer to the bio-oil. Despite their low transfer rates, relatively high metal concentrations (especially Zn) were detected in the liquid products, highlighting the need for further research on metal behavior under varying process conditions.
