Response mechanisms of microalgal-bacterial granular sludge to different loading strategies of copper oxide nanoparticles
This study investigated the effects of copper oxide nanoparticles (CuO NPs) at concentrations of 1–50 mg/L on the microalgal-bacterial granular sludge (MBGS) wastewater treatment process, comparing two nanoparticle addition methods: shock-load (SL) and stepwise (SW) increases. The results demonstrat...
Elmentve itt :
| Szerzők: | |
|---|---|
| Dokumentumtípus: | Cikk |
| Megjelent: |
2025
|
| Sorozat: | ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
89 |
| Tárgyszavak: | |
| doi: | 10.1016/j.algal.2025.104099 |
| mtmt: | 36136994 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/36727 |
| LEADER | 02166nab a2200229 i 4500 | ||
|---|---|---|---|
| 001 | publ36727 | ||
| 005 | 20250515110622.0 | ||
| 008 | 250515s2025 hu o 000 eng d | ||
| 022 | |a 2211-9264 | ||
| 024 | 7 | |a 10.1016/j.algal.2025.104099 |2 doi | |
| 024 | 7 | |a 36136994 |2 mtmt | |
| 040 | |a SZTE Publicatio Repozitórium |b hun | ||
| 041 | |a eng | ||
| 100 | 1 | |a Kedves Alfonz | |
| 245 | 1 | 0 | |a Response mechanisms of microalgal-bacterial granular sludge to different loading strategies of copper oxide nanoparticles |h [elektronikus dokumentum] / |c Kedves Alfonz |
| 260 | |c 2025 | ||
| 300 | |a 9 | ||
| 490 | 0 | |a ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS |v 89 | |
| 520 | 3 | |a This study investigated the effects of copper oxide nanoparticles (CuO NPs) at concentrations of 1–50 mg/L on the microalgal-bacterial granular sludge (MBGS) wastewater treatment process, comparing two nanoparticle addition methods: shock-load (SL) and stepwise (SW) increases. The results demonstrated that the chemical oxygen demand (COD) and ammonia‑nitrogen (NH3-N) removal were more sensitive in the reactor with shock-load (RSL), phosphate concentrations were higher in the effluent from the reactor with stepwise increases (RSW). Accumulation of nitrate‑nitrogen was observed only in the SW method at CuO NP concentrations ≥20 mg/L, likely due to the nanoparticles becoming entrapped within the granule interiors, as evidenced by scanning electron microscopy coupled with energy-dispersive X-ray (SEM-EDX) mapping. Although total EPS levels were highest in both reactors at 20 mg/L CuO NP dosage, the levels were significantly higher in the RSW sludge (191.1 mg/g MLVSS in RSL vs. 218.3 mg/g MLVSS in RSW), primarily due to the long-term exposure leading to increased loosely-bound EPS (LB-EPS) content (75.7 mg/g MLVSS in RSL vs. 102.9 mg/g MLVSS in RSW). Furthermore, CuO NPs interacted with EPS, binding to Nsingle bondH, Csingle bondN, Cdouble bondO, and C-O-C groups in protein (PN) and polysaccharide (PS) structures. | |
| 650 | 4 | |a Nanotechnológia | |
| 700 | 0 | 1 | |a Kónya Zoltán |e aut |
| 856 | 4 | 0 | |u http://publicatio.bibl.u-szeged.hu/36727/1/1-s2.0-S2211926425002085-main.pdf |z Dokumentum-elérés |