Article

Functionalized magnetic particles for water treatment

Christian BareselIVL Swedish Environmental Research Institute AB, Box 210 60, Stockholm, 100 31, SwedenVincent SchallerRISE Acreo, Arvid Hedvalls Backe 4, Gothenburg, SwedenChristian JonassonRISE Acreo, Arvid Hedvalls Backe 4, Gothenburg, SwedenChrister JohanssonRISE Acreo, Arvid Hedvalls Backe 4, Gothenburg, SwedenRomain BordesDepartment of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, SwedenVinay ChauhanDepartment of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, SwedenAbhilash SugunanRISE Surface, Process and Formulation, Box 5607, Stockholm, SE-114 86, SwedenJens SommertuneRISE Surface, Process and Formulation, Box 5607, Stockholm, SE-114 86, SwedenSebastian WellingIVL Swedish Environmental Research Institute AB, Box 210 60, Stockholm, 100 31, Sweden

2019en

ABI

Abstract

In this study, we have taken the concept of water treatment by functionalized magnetic particles one step forward by integrating the technology into a complete proof of concept, which included the preparation of surface modified beads, their use as highly selective absorbents for heavy metals ions (Zinc, Nickel), and their performance in terms of magnetic separation. The separation characteristics were studied both through experiments and by simulations. The data gathered from these experimental works enabled the elaboration of various scenarios for Life Cycle Analysis (LCA). The LCA showed that the environmental impact of the system is highly dependent on the recovery rate of the magnetic particles. The absolute impact on climate change varied significantly among the scenarios studied and the recovery rates. The results support the hypothesis that chelation specificity, magnetic separation and bead recovery should be optimized to specific targets and applications.

Identifiers

DOI: 10.1016/j.heliyon.2019.e02325

Citations and references

Cited by 40 references

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