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Removal of Lead,Copper,Zinc and Cadmium from Water Using Phosphate Rock

Acta Geologica Sinica(English Edition) 2008年第6期82卷 1223-1228页

作者： alessia corami Silvano MIGNARDI Vincenzo FERRINI Department of Earth Sciences University"La Sapienza"P.le A.Moro 500185 RomeItaly IGG-CNR(Sezione di Roma) c/o Department of Earth SciencesUniversity"La Sapienza"P.le A.Moro 500185 RomeItaly Department of Earth Sciences University "La Sapienza"P.le A.Moro 500185 RomeItaly

Removal of Pb^2＋, Cu^2＋, Zn^2＋ and Cd^2＋ from aqueous solutions by sorption on a natural phosphate rock （FAP） was investigated. The effects of the contact time and initial metal concentration were examined in the batch method. The percentage sorption of heavy metals from solution ranges generally between 50% and 99%. The amount of sorbed metal ions follows the order Cu〉Pb〉Cd〉Zn. Heavy metal immobilization was attributed to both surface complexation of metal ions on the surface of FAP grains and partial dissolution and precipitation of a heavy metal-containing phosphate. The very low desorption ratio of heavy metals further supports the effectiveness of FAP as an alternative and low-cost material to remove toxic Pb^2＋, Cu^2＋, Zn^2＋ and Cd^2＋ from polluted waters.

关键词： heavy metal ions phosphate rock sorption

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Plastic pollution in marine and freshwater biota

Water Biology and Security

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Water Biology and Security 2024年第2期3卷 96-99页

作者： Gabriella Caruso Ilaria Corsi Chenxi Wu Elisa Bergami Fabiana corami Valter M.Azevedo-Santos Institute of Polar Sciences National Research CouncilMessinaItaly Department of Physical Earth and Environmental SciencesUniversity of SienaItaly Institute of Hydrobiology Chinese Academy of SciencesWuhanPR China Department of Life Sciences University of Modena and Reggio EmiliaModenaItaly Institute of Polar Sciences National Research CouncilVeniceItaly Programa de Pὁs-Graduaçao em Biodiversidade Ecologiae ConservaçaoUniversidade Federal do TocantinsPorto NacionalTocantinsBrazil Grupo de Ecologia AquáticaEspaço Innovaçao do Parque de Ciencia e Tecnologia GuamáBelémParáBrazil Faculdade Eduvale de AvaréAvaréSao PauloBrazil

Plastic pollution is now recognised as a growing concern for both the environment and associated ***,a plethora of scientific reports are being produced regarding the occurrence,distribution,and transfer pathways of litter ***,there are scientific gaps that need to be filled regarding micro-and nanoplastic impacts on marine and freshwater *** Special Issue(SI)aimed to provide an update on plastic pollution and its consequences on aquatic ecosystems,with a particular focus on biological domains,by adopting a multidisciplinary *** research articles and reviews were collected,focusing on the origin,fate,and effects of plastics in marine and freshwater environments,along with their interactions with biotic *** believe this SI will contribute to the development of new studies on plastic pollution and the elaboration of science-based policies at different levels of our modern society.

关键词： Biodiversity Ecotoxicity Microplastics Plastic ingestion Sea Rivers

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