@misc{10481/96516,
year = {2018},
url = {https://hdl.handle.net/10481/96516},
abstract = {This research reports the effects of pH increase on contaminant mobility in phosphogypsum leachates by seawater mixing, as occurs with dumpings on marine environments. Acid leachates from a phosphogypsum stack located in the Estuary of Huelva (Spain) were mixed with seawater to achieve gradually pH 7. Concentrations of Al, Fe, Cr, Pb and U in mixed solutions significantly decreased with increasing pH by sorption and/or precipitation processes. Nevertheless, this study provides insight into the high contribution of the phosphogypsum stack to the release of other toxic elements (Co, Ni, Cu, Zn, As, Cd and Sb) to the coastal areas, as 80–100% of their initial concentrations behaved conservatively in mixing solutions with no participation in sorption processes. Stable isotopes ruled out connexion between different phosphogypsum-related wastewaters and unveiled possible weathering inputs of estuarine waters to the stack. The urgency of adopting effective restoration measures in the study area is also stressed.},
organization = {Regional Government of Andalusia FOREVER (P12-RNM-2260)},
organization = {Spanish Ministry of Economy and Competitiveness CAPOTE (CGL2017-86050-R), (FJCI-2014-19582), (RYC-2012-11314)},
organization = {Committee of Experts, City Hall of Huelva},
publisher = {Elsevier},
keywords = {Phosphogypsum},
keywords = {Huelva estuary},
keywords = {Seawater mixing},
keywords = {Geochemical processes},
keywords = {Contaminants mobility},
title = {Effects of seawater mixing on the mobility of trace elements in acid phosphogypsum leachates},
doi = {10.1016/J.MARPOLBUL.2018.01.001},
author = {Papaslioti, Evgenia-Maria and Pérez-López, Rafael and Parviainen, Annika Jenni Johana and Sarmiento, Aguasanta M. and Nieto, José Miguel and Marchesi, Claudio and Delgado-Huertas, Antonio and Garrido, Carlos Jesús},
}