RT Journal Article
T1 Long term geochemical variation of brines derived from a major phosphogypsum pond of SW Europe
A1 Torres Sánchez, Raquel
A1 Sánchez-Rodas Navarro, Daniel Alejandro
A1 Sánchez de la Campa Verdona, Ana María
A1 Rosa Díaz, Jesús de la
AB The chemical evolution of brines resulting from an inactive phosphogypsum pond derived of fertilizer industry located in Huelva (Spain, SW Europe) has been studied based on a weekly sampling from 2014 to 2017. Longrange time variation of metals and ions concentrations in brines are expected to depend on environmental parameters such as rainfall and evaporation. The results show that brines are enriched in F (1.7–2.0 g/l), Cl (13–24 g/l), SO42 (7.2–9.3 g/l), V (70–128 mg/l) and U (55–98 mg/l). A great variation of chemical concentrations has been found, due to dilution, recharge and evaporation processes. Most of the elements show peak concentrations in summer, coinciding with the lowest pH values (<1), high conductivity (>133 mS/cm), and high evaporation rates as expected. Nonetheless, F shows an opposite behaviour, varying its concentrations between 0.9 g/l in summer and 3.7 g/l in the rainy season. According to the results, a future restoration plan for PG ponds should include the removal of brines and layered salts during summer in order to avoid the annualgeneration of brines and their impact on the environment.
PB Elsevier
SN 0301-4797
YR 2020
FD 2020
LK https://hdl.handle.net/10272/24812
UL https://hdl.handle.net/10272/24812
LA eng
NO Torres-Sánchez, R., Sánchez-Rodas, D., Sánchez de la Campa, A. M., & de la Rosa, J. D. (2020). Long term geochemical variation of brines derived from a major phosphogypsum pond of SW Europe. In Journal of Environmental Management (Vol. 254, p. 109832). Elsevier BV. https://doi.org/10.1016/j.jenvman.2019.109832
NO This study was supported by the Spanish Autonomous Government and Ministry of Economy and Competitiveness of Spain (Project CGL 2014-54637-P; BES-2015-071239).
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026