Magnetic microparticles as a new tool for lake restoration: A microcosm experiment for evaluating the impact on phosphorus fluxes and sedimentary phosphorus pools Álvarez-Manzaneda Salcedo, María Inmaculada Vicente Álvarez De Manzaneda, María Inmaculada De Vicente Álvarez-Manzaneda, Juan De Funes, Ana Inmaculada Cruz Pizarro, Luis José Magnetic particles Lake restoration Eutrophication Phosphorus adsorption Wetlands In the last decades, magnetic particles (MPs) as adsorbents have gained special attention due to their high adsorption capacity and the possibility of recovering them by applying a magnetic separation gradient. For the first time MPs have been tested as P adsorbents in a microcosm experiment in a context of lake restoration. MPs were added to sediment cores from a hypertrophic lake, at Fe:PMobile molar ratio of 285:1 and 560:1 under both, oxic and anoxic conditions. We have found that, under anoxic conditions (anoxic), MPs are able to reduce P release rate from the sediment to the overlying water and to reduce sedimentary PMobile concentration (a 22e25% reduction within 0e4 cm depth compared to controls). Under oxic conditions, the addition of MPs do not affect P fluxes across the sediment and water interface since the lake sediment is naturally rich in iron oxides. However a measured reduction in sedimentary PMobile concentration (12e16% reduction in 0e10 cm depth) contributes to a potential reduction in longterm P efflux. 2018-07-30T06:07:20Z 2018-07-30T06:07:20Z 2016 info:eu-repo/semantics/article Water Research 89:366-374 http://hdl.handle.net/10481/52535 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España