20.500.12556/RUL-169547 Impact of microalgal biomass and microplastics on the sorption behaviour of pesticides in soil a comparative study The sustainability of resource recovery and agricultural practices can be enhanced by utilising microalgal biomass from a high-rate algal pond for wastewater treatment to improve soil quality and food yields. However, certain factors should be considered first. The addition of fertilisers and the presence of contaminants such as microplastics (MPs) can modify the behaviour of pesticides, applied to such fields. A sorption study of three model pesticides with different octanol–water partitioning coefficient (log Kow): acetamiprid (ACE, log Kow 0.80), chlorantraniliprole (CAP, log Kow 2.76), and flubendiamide (FLU, log Kow 4.20), was carried out in soils amended with microalgal biomass in the presence and absence of MPs. The surface of the sorbents in the study was characterised by attenuated total reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), water contact angle (CA), and point of zero charge (pHPZC). Overall, the sorption of model pesticides increased with their hydrophobicity: ACE > CAP > FLU. The addition of microalgal biomass to soil increased the sorption of ACE (0.72 ± 0.05 µg g−1), compared to soil only (0.08 ± 0.08 µg g−1). The greater sorption capacity of ACE can be attributed to electrostatic interactions, hydrogen bonding and π–π interactions between ACE moieties and the negatively charged surface of microalgal biomass containing polar functional groups. The presence of MPs (3% w/w, mixture of polyethylene terephthalate (PET), polyethylene (PE), and polystyrene (PS)) did not affect the sorption of ACE, CAP or FLU, regardless of the presence or absence of microalgal biomass. However, FLU sorption was enhanced in the presence of PE and PS in soil, spiked with these individual MP polymers. Microalgal soil amendment can, therefore, influence the behaviour of hydrophilic compounds in soil. agriculture contaminants microalgae wastewater treatment high-rate algal pond soil amendment resource recovery true false true Angleški jezik Ni določen Članek v reviji 2025-06-03 11:22:27 2025-06-03 11:22:29 2025-06-05 04:10:48 0000-00-00 00:00:00 2025 0 0 18 str. art. 57 Vol. 37 Apr. 2025 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 2025-04-01 628.3 2190-4715 10.1186/s12302-025-01100-1 238050819 https://link.springer.com/article/10.1186/s12302-025-01100-1 1 f79a5064-405a-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210999 s12302-025-01100-1_(1).pdf s12302-025-01100-1_(1).pdf 1 2D24FCD2144D971061DBCB5D9A923C3C 3ab269cfb0ee63c4de6ed9fe00a329368b14e05dc7a4a5f6c82bbb717917876f bc97cef3-405c-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211001 Zdravstvena fakulteta Fakulteta za gradbeništvo in geodezijo 0 0 0