20.500.12556/RUL-173767 Adsorption and effects of water-soluble acrylic acid-based polymers on activated sludge Synthetic water-soluble polymers are used in agriculture, household cleaners, printing inks, lubricants, paints, adhesives, personal care products, and cosmetics. They often end up in wastewater, which is then treated in wastewater treatment plants before being released into the environment. In this study, we investigated the interactions and effects of synthetic water-soluble polymers, namely a homopolymer and a copolymer of acrylic acid, on activated sludge. The results showed that the homopolymer and copolymer were rapidly adsorbed on the activated sludge (˃70%) immediately after the initial contact and the adsorption process was described by the Freundlich isotherm model. The adsorption of copolymer affected the sedimentation rate of activated sludge. The endogenous and exogenous respiration of the activated sludge was not significantly affected by the presence of homopolymer or copolymer. However, their dose-response effect on exogenous respiration was observed. These results indicated that acrylic acid-based polymers can adhere to a high degree to activated sludge and thus also possibly to other biotic surfaces in the environment. Considering the large amount of synthetic water-soluble polymers released into the environment, their interactions and fate in the environment should be further investigated. adhesion cosmetics hydrophilic polymers polymers in liquid formulations wastewater treatment adhezija kozmetika hidrofilni polimeri polimeri v tekočih formulacijah čiščenje odpadnih vod true false true Angleški jezik Slovenski jezik Članek v reviji 2025-09-22 12:23:44 2025-09-22 12:23:46 2025-10-29 14:58:27 0000-00-00 00:00:00 2025 0 0 Str. 2339-2346 iss. 8 Vol. 44 Aug. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.3:678.744.32 0730-7268 10.1093/etojnl/vgaf144 249765635 RAZ_Novak_Janja_2025.pdf RAZ_Novak_Janja_2025.pdf 1 68563C70B83F42E3BB2DF89CDD1C204C 03c3bd086689bc3b5dfbb7ac3661c4c5d4570ade0d9c6ad261aea6e537bb4a52 ce06c0af-979e-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218419 https://academic.oup.com/etc/article/44/8/2339/8158398 1 114467fc-979e-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218418 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0