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Recovery and separation of valuable metals (copper and zinc) from acidic mine waters by ion-exchange resins

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Vecino Bello, XanelMés informacióMés informació
Reig i Amat, MònicaMés informacióMés informacióMés informació
López Rodríguez, JulioMés informacióMés informacióMés informació
Valderrama Ángel, César AlbertoMés informacióMés informacióMés informació
Gibert Agulló, OriolMés informacióMés informacióMés informació
Cortina Pallás, José LuisMés informacióMés informacióMés informació
Document typeConference report
Defense date2019
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Mining wastewaters, containing heavy metals such as copper (Cu) and zinc (Zn), have a huge impact on the environment due to they are not biodegradable and tend to bioaccumulate in plants or living organisms. Therefore, in this work the performance of ion-exchange and solvent-impregnated resins were compared for the separation and recovery of valuable metals (Cu, Zn) from acidic mine waters (AMW). Lewatit 207 as an ion-exchange resin, and an impregnated resin containing Di-2-ethylhexylphosphate, named Lewatit 1026, were evaluated for extract both metal ions. Additionally, the metal extraction was determined as a function of pH (from 1 to 5) when an AMW was used to carry out the experiments. Batch experiments results showed that best extraction of Zn was obtained using Lewatit 1026 being around 96% (pH=2.5-3); whereas Lewatit 207 performance was optimum for Cu extraction (about 99%) at pH=3-4. Moreover, using a fixed-bed configuration column, it was possible to separate and concentrate Zn (10 times) and Cu (40 times) by using Lewatit 1026 and 207, respectively. Overall, the application of an ion-exchange process showed a great potential in the recovery of valuable metals from mine waters to promote a
CitationVecino, X. [et al.]. Recovery and separation of valuable metals (copper and zinc) from acidic mine waters by ion-exchange resins. A: International Conference on Environmental Science and Technology. "16th International Conference on Environmental Science and Technology CEST2019, 4-7 September 2019, Rhodes, Greece". 2019. 
URIhttp://hdl.handle.net/2117/169554
Publisher versionhttps://cest2019.gnest.org/sites/default/files/presentation_file_list/cest2019_00320_posterf_paper.pdf
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  • R2EM - Resource Recovery and Environmental Management - Ponències/Comunicacions de congressos [33]
  • Departament d'Enginyeria Química - Ponències/Comunicacions de congressos [350]
  • Doctorat en Enginyeria de Processos Químics - Ponències/Comunicacions de congressos [32]
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