Essays about: "zinc recovery"

Showing result 1 - 5 of 6 essays containing the words zinc recovery.

  1. 1. Membrane filtration for the recovery of zinc chloride from wastewater from a recycling process for cellulose textiles

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Ebba Andersson; [2022]
    Keywords : textilåtervinning; membranfiltrering; mikrofiltrering; nanofiltrering; zinkklorid; kemiteknik; Technology and Engineering;

    Abstract : Textilkonsumtionen i världen idag är hög, varje år köpts och slängs textilier långt mer än vad världens resurser tillåter. I ett försök att hitta ett hållbart sätt att återanvända textilierna har institutionen för kemiteknik vid Lunds universitet påbörjat ett forskningsprojekt för att undersöka möjligheterna till att återanvända textilfibrerna från grunden; genom att bryta ner textilierna till fiber ska det gå att återanvända samma textilfiber till nya textilier i en ny åter-vinningsprocess. READ MORE

  3. 2. Investigation of the zinc re-grinding circuit at Boliden Garpenberg

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Nils Merum; [2021]
    Keywords : Flotation; re-grinding; Garpenberg; Boliden;

    Abstract : Boliden’s mineral processing plant in Garpenberg wanted to investigate their zinc-regrinding circuit. The re-grinding circuit had performed subpar when running as the total recovery of zinc was lowered and problem with the dewatering of the final concentrates was also noted. Therefore, the zinc re-grinding circuit is currently not being used. READ MORE

  4. 3. Modelling of Metal Recovery using Sulfate Reducing Bacteria, Simulation in MATLAB and Aspen Plus

    University essay from Lunds universitet/Teknisk mikrobiologi; Lunds universitet/Bioteknik

    Author : Hanna Kvarnström; Erika Lönntoft; [2017]
    Keywords : Sulfate reducing bacteria; Metal sulfides; Metal Recovery; Metal precipitation; Modelling; Simulation; Aspen Plus; Matlab; Technology and Engineering;

    Abstract : This report presents a mathematical kinetic model describing the recovery of metal ions as metal sulfides, using sulfate reducing bacteria (SRB). Metal recovery from industrial waste is a potential beneficial and unused source of metals. READ MORE

  5. 4. Geometallurgical approach to understand how the variability in mineralogy at Zinkgruvan orebodies affects the need for copper activation in the bulk rougher-scavenger flotation

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Ivan Belo Fernandes; [2017]
    Keywords : Geometallurgy; Zinkgruvan; Zn-Pb flotation; ore variability; mineral chemistry; pyrrhotite; magnetic separation;

    Abstract : Zinkgruvan is a Pb-Zn-Ag deposit located in south-central Sweden, owned and operated by Lundin Mining. The ore is beneficiated by a collective-selective flotation circuit, recovering both galena and sphalerite in a bulk rougher-scavenger flotation stage and later on separating them into two final products. READ MORE

  6. 5. Water and carbon footprints of mining and producing Cu, Mg and Zn : a comparative study of primary and secondary sources

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Hanna Angel; [2016]
    Keywords : water footprint; carbon footprint; metal production; fly ash; mining; Physical Geography and Ecosystem Science; Earth and Environmental Sciences;

    Abstract : Finding sustainable alternatives to the current degrading activities associated with metal mining and production is essential in order to meet increased resource demand and stricter environmental regulations. One option that recently has gained interest is to recover metals from fly ash, which is produced when incinerating municipal solid waste. READ MORE