gscienceMining Science and Technology (Russia)Горные науки и технологии2500-0632The National University of Science and Technology MISiIS (NUST MISIS)10.17073/2500-0632-2020-1-25-29gscience-205Research ArticleBENEFICIATION AND PROCESSING OF NATURAL AND TECHNOGENIC RAW MATERIALSОБОГАЩЕНИЕ, ПЕРЕРАБОТКА МИНЕРАЛЬНОГО И ТЕХНОГЕННОГО СЫРЬЯSelective Extraction of Cobalt and Copper from Chilean Mine Water by Ion Exchange ResinSelective Extraction of Cobalt and Copper from Chilean Mine Water by Ion Exchange ResinAbeywickramaJ.AbeywickramaJ.

Freiberg.

Freiberg.

HothN.HothN.

Freiberg.

Freiberg.

UssathM.UssathM.

Freiberg.

Freiberg.

DrebenstedtC.DrebenstedtC.

Freiberg.

Freiberg.

Technische Universitat Bergakademie FreibergГерманияTechnische Universitat Bergakademie FreibergGermany202014052020512529Copyright © Abeywickrama J., Hoth N., Ussath M., Drebenstedt C., 20202020Abeywickrama J., Hoth N., Ussath M., Drebenstedt C.Abeywickrama J., Hoth N., Ussath M., Drebenstedt C.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://mst.misis.ru/jour/article/view/205

Heavy metal-containing waste has become one of heavy environmental problems. Processing of such waste accumulated at waste dumps to extract valuable components is commercially beneficial activity and, in addition, decreases environmental impact. In this study, Lewatit MonoPlus TP 207 (TP 207) ion exchange resin was evaluated for its suitability for selective removal of cobalt (Co) and copper (Cu) from mine waste waters, generated by heap leaching waste materials at a Chilean copper mine. In series of laboratory scale fixed-bed ion exchange column tests, the effects of process parameters, such as waste water flow rate and regenerant (sulfuric acid) concentration, were studied in both waste water treatment by the ion exchange resin process and the resin regeneration (metals eluting) process. The regeneration process tests were performed using 1 % and 10 % sulfuric acid. The best separation of the metals (in the eluting process) was achieved with regeneration of TP 207 resin using 1 % sulfuric acid at flow rate of 1 bed volume per hour (BV/h).

Heavy metal-containing waste has become one of heavy environmental problems. Processing of such waste accumulated at waste dumps to extract valuable components is commercially beneficial activity and, in addition, decreases environmental impact. In this study, Lewatit MonoPlus TP 207 (TP 207) ion exchange resin was evaluated for its suitability for selective removal of cobalt (Co) and copper (Cu) from mine waste waters, generated by heap leaching waste materials at a Chilean copper mine. In series of laboratory scale fixed-bed ion exchange column tests, the effects of process parameters, such as waste water flow rate and regenerant (sulfuric acid) concentration, were studied in both waste water treatment by the ion exchange resin process and the resin regeneration (metals eluting) process. The regeneration process tests were performed using 1 % and 10 % sulfuric acid. The best separation of the metals (in the eluting process) was achieved with regeneration of TP 207 resin using 1 % sulfuric acid at flow rate of 1 bed volume per hour (BV/h).

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The authors declare that there are no conflicts of interest present.