20.500.12556/RUL-155486 The potential of ozonation to reduce impact of waste sludge-entrapped microplastics to biogas production Due to low degradability of plastic materials, high usage, and low cost, microplastics (MPs) is becoming ubiquitous environmental pollutant. Wastewater treatment plants (WWTP) are one of main sources, where most of the MPs from wastewaters ends in waste sludge. Anaerobic digestion is one of most promised techniques of waste sludge management. The aim of this paper was to evaluate the impact of polyethylene terephthalate (PET) and polypropylene (PP) microplastics in the waste sludge with and without ozonation as possible pretreatment, on biogas and methane production with OxiTop$^®$ method. In the first set of experiments, PET inhibited (up to 6% at 0.1 g $L^{−1}$) or promoted (up to 3% at 1 g $L^{−1}$) methane production but increased cumulative biogas production (up to 38% at 0.5 g $L^{−1}$). PP inhibited methane production (up to 5% at 0.5 g $L^{−1}$) but its impact on biogas production was dependent upon concentration of MPs added. In the second set of experiments, pretreatment of non-contaminated waste sludge by ozonation (3.54 $g_{ozone}$ $h^{−1}$) inhibited methane yield. Longer time of ozonation of PP-contaminated waste sludge reduced inhibition of methane yield, while in the case of PET-contaminated waste sludge, it was increased. biogas production methane yield ozonation polyethylene terephthalate polypropylene waste sludge proizvodnja bioplina donos metana ozonacija polietilenteraftalat polipropilen odpadno blato true false true Angleški jezik Slovenski jezik Članek v reviji 2024-04-04 12:26:10 2024-04-04 12:26:11 2024-05-08 04:01:30 0000-00-00 00:00:00 2024 0 0 Str. 255–266 no. 3 Vol. 46 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.094.3-926.214 0191-9512 10.1080/01919512.2024.2332286 191347203 The_Potential_of_Ozonation_to_Reduce_Impact_of_Waste_Sludge-Entrapped_Microplastics_to_Biogas_Production.pdf The_Potential_of_Ozonation_to_Reduce_Impact_of_Waste_Sludge-Entrapped_Microplastics_to_Biogas_Production.pdf 1 F0C3273669CCFB5E5CB528C4AF39129B 8b1663b5ace6ea858c45a565830ebc244c604a5cbee931866849081dfa3b3573 b9348a94-0c64-11ef-a791-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=183299 https://www.tandfonline.com/doi/full/10.1080/01919512.2024.2332286 1 c0e79acf-f26d-11ee-87dd-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182406 Fakulteta za kemijo in kemijsko tehnologijo Zdravstvena fakulteta 0 0 0