20.500.12556/DKUM-60195 Effect of low-density static magnetic field on the oxidation of ammonium by Nitrosomonas europaea and by activated sludge in municipal wastewater Ammonium removal is a key step in biological wastewater treatment and novel approaches that improve this process are in great demand. The aim of this study is to test the hypothesis that ammonium removal from wastewater can be stimulated by static magnetic fields. This was achieved by analysis of the effects of static magnetic field (SMF) on the growth and activity of Nitrosomonas europaea, a key ammonia-oxidising bacterium, where increased growth and increased ammonia oxidation rate were detected when bacteria were exposed to SMF at 17 mT. Additionally, the effect of SMF on mixed cultures of ammonia oxidisers in activated sludge, incubated in sequencing batch bioreactors simulating wastewater treatment process, was assessed. SMFs of 30 and 50 mT, but not of 10 mT, increased ammonium oxidation rate in municipal wastewater by up to 77 % and stimulated ammonia oxidiser growth. The results demonstrate the potential for use of static magnetic fields in increasing ammonium removal rates in biological wastewater treatment plants. odpadne vode bakterije Nitrosomonas europaea statično magnetno polje biološke čistilne naprave nitrifikacija biological wastewater treatment static magnetic field sequencing batch reactors ammonia-oxidising bacteria nitrification true false true Angleški jezik Slovenski jezik Znanstveno delo 2016-06-09 03:19:05 2017-07-24 12:09:10 2022-06-22 03:06:13 2019-07-11 11:38:27 2015 0 0 str. 201-206 št. 2 Letn. 53 2015 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1330-9862 628.3:631.641:537.63 40116737 4513144 10.17113/ftb.53.02.15.3629 1330-9862 URN:SI:UM:DK:XRTHPXIZ Food_Technology_and_Biotechnology_2015_Filipic_et_al._Effect_of_Low-Density_Static_Magnetic_Field_on_the_Oxidation_of_Ammonium_by_Nitros.pdf Food_Technology_and_Biotechnology_2015_Filipic_et_al._Effect_of_Low-Density_Static_Magnetic_Field_on_the_Oxidation_of_Ammonium_by_Nitros.pdf 1 D76B3121DB04778702595AF0D0A21C7D b2e9735f24e155f940070c3e755732d22993eabc5e3a6e34ffb632aeeb5125ad 726b83d9-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=114503 http://www.ftb.com.hr/index.php/archives/152-volume-53-issue-no-2/1350-effect-of-low-density-static-magnetic-field-on-the-oxidation-of-ammonium-by-nitrosomonas-europaea-and-by-activated-sludge-in-municipal-wastewater 1 https://dk.um.si/Dokument.php?lang=slv&id=94010 Fakulteta za strojništvo 0 0 0