Szczegóły publikacji
Opis bibliograficzny
Fate of extracellular DNA in the phosphorus recovery adsorption-based process from wastewater using water treatment residuals / Mateusz SKALNY, Jakub CZEREMUGA, Anna Rokowska, Marta GAJEWSKA, Łukasz Dziewit, Tomasz BAJDA // Journal of Environmental Chemical Engineering ; ISSN 2213-2929 . — 2026 — vol. 14 iss. 2 art. no. 121893, s. 1–17. — Bibliogr. s. 15–17, Abstr. — Publikacja dostępna online od: 2026-02-20
Autorzy (6)
- AGHSkalny Mateusz
- AGHCzeremuga Jakub
- Rokowska Anna
- AGHGajewska Marta
- Dziewit Łukasz
- AGHBajda Tomasz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 167249 |
|---|---|
| Data dodania do BaDAP | 2026-04-28 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jece.2026.121893 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Environmental Chemical Engineering |
Abstract
Phosphorus (P) is a non-renewable resource essential for agriculture, and as its reserves deplete, wastewater emerges as its promising secondary source. However, the presence of micropollutants in wastewater may compromise the safety of P recovery. To investigate this, we use water treatment residuals (WTRs) as a circular, low-cost adsorbent for P recovery from wastewater, while simultaneously examining the behavior of extracellular DNA (exDNA), which is considered a xenobiotic pollutant. PO43- and exDNA are simultaneously immobilized from wastewater using WTRs during an adsorption process. Pollutant removal efficiency depends on adsorbent composition, with iron-rich WTRs exhibiting higher porosity and reactivity compared to other WTRs due to their greater nanocrystalline ferrihydrite content. PO43- shows a higher adsorption rate than exDNA on WTRs, leading to its greater removal efficiency in the column adsorption experiments. Spent WTRs can be regenerated with alkaline agents, yielding a P-enriched eluate. The PO43- concentration in the eluate and regeneration efficiency are related to the material adsorption capacity and also its initial P content. The elution of spent Fe-rich WTRs with 2.31 % of P2O5, using NaOH, results in an eluate with a concentration of 225 ± 6.4 mg/L of PO43-. Our results indicate that alkaline or acidic regeneration conditions promote exDNA degradation. Thus exDNA is detected in eluates obtained during regeneration as substantially short strands, undetectable by gel electrophoresis. This study provides an integrated framework for P recovery from wastewater using water-sector byproducts, simultaneously elucidating the behavior of exDNA, a potential vector for antibiotic resistance genes.
