Eutrophication decrease: Phosphate adsorption processes in presence of nitrates

Journal of Environmental Management
Susana P BoeykensCristina Vázquez

Abstract

Eutrophication causes aquatic environment degradation as well as serious problems for different purposes of water uses. Phosphorus and nitrogen, mainly as phosphate and nitrate respectively, are considered responsible for eutrophication degradation. The focus of this work was the study of adsorption processes for decreasing phosphate and nitrate concentrations in bi-component aqueous systems. Dolomite and hydroxyapatite were selected as low-cost adsorbents. Obtained results showed that both adsorbents have high capacity for phosphate adsorption which the presence of nitrate does not modify. Hydroxyapatite proved to be the most efficient adsorbent, however, it showed a low percentage of desorption and few possibilities of reuse. Dolomite, on the other hand, allows a desorption of the adsorbed material that favours its reuse.

Citations

May 23, 2018·PloS One·Anna C SchneiderCarmen R Smarandache-Wellmann
Mar 5, 2020·Environmental Science and Pollution Research International·Yin XuRunliang Zhu
Mar 12, 2019·TheScientificWorldJournal·A BattasA Kherbeche
May 18, 2020·Environmental Monitoring and Assessment·Banafsheh FarajiZahra Kolahchi
Nov 17, 2020·ZooKeys·Marina VilenicaZlatko Mihaljević
Nov 5, 2020·Journal of Environmental Management·Hermano M QueirozAngelo F Bernardino
Oct 10, 2020·The Science of the Total Environment·Hareb Al-JabriMohammad AbdulQuadir
Mar 1, 2019·Journal of Environmental Management·M Natalia PiolSusana P Boeykens
May 15, 2021·Journal of Environmental Sciences (China)·Tharindu RitigalaYuansong Wei
Sep 27, 2018·International Journal of Biological Macromolecules·J L MarquesT R S Cadaval

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