Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 539741
Title Re-using bauxite residues : benefits beyond (critical raw) material recovery
Author(s) Ujaczki, Éva; Feigl, Viktória; Molnár, Mónika; Cusack, Patricia; Curtin, Teresa; Courtney, Ronan; O'Donoghue, Lisa; Davris, Panagiotis; Hugi, Christoph; Evangelou, Michael W.H.; Balomenos, Efthymios; Lenz, Markus
Source Journal of Chemical Technology and Biotechnology 93 (2018)9. - ISSN 0268-2575 - p. 2498 - 2510.
DOI https://doi.org/10.1002/jctb.5687
Department(s) Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) hydrometallurgy - life-cycle assessment (LCA) - metals - recovery - sustainable processing - waste treatment and waste minimization
Abstract

Since the world economy has been confronted with an increasing risk of supply shortages of critical raw materials (CRMs), there has been a major interest in identifying alternative secondary sources of CRMs. Bauxite residues from alumina production are available at a multi-million tonnes scale worldwide. So far, attempts have been made to find alternative re-use applications for bauxite residues, for instance in cement / pig iron production. However, bauxite residues also constitute an untapped secondary source of CRMs. Depending on their geological origin and processing protocol, bauxite residues can contain considerable amounts of valuable elements. The obvious primary consideration for CRM recovery from such residues is the economic value of the materials contained. However, there are further benefits from re-use of bauxite residues in general, and from CRM recovery in particular. These go beyond monetary values (e.g. reduced investment / operational costs resulting from savings in disposal). For instance, benefits for the environment and health can be achieved by abatement of tailing storage as well as by reduction of emissions from conventional primary mining. Whereas certain tools (e.g. life-cycle analysis) can be used to quantify the latter, other benefits (in particular sustained social and technological development) are harder to quantify. This review evaluates strategies of bauxite residue re-use / recycling and identifies associated benefits beyond elemental recovery. Furthermore, methodologies to translate risks and benefits into quantifiable data are discussed. Ultimately, such quantitative data are a prerequisite for facilitating decision-making regarding bauxite residue re-use / recycling and a stepping stone towards developing a zero-waste alumina production process.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.