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Jennifer Broadhurst   Professor  Other 
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Jennifer Broadhurst published an article in September 2015.
Top co-authors
S.T.L. Harrison

37 shared publications

J.-P. Franzidis

27 shared publications

Y. Hansen

6 shared publications

A.H. Hesketh

3 shared publications

Publication Record
Distribution of Articles published per year 
(1993 - 2015)
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Article 1 Read 1 Citation A mineralogical approach to evaluating laboratory scale acid rock drainage characterisation tests M. Becker, N. Dyantyi, J.L. Broadhurst, Susan T.L. Harrison,... Published: 01 September 2015
Minerals Engineering, doi: 10.1016/j.mineng.2015.06.015
DOI See at publisher website
Article 2 Reads 0 Citations Life cycle assessment of the desulfurisation flotation process to prevent acid rock drainage: A base metal case study J.L. Broadhurst, M.C. Kunene, H. von Blottnitz, J.-P. Franzi... Published: 01 May 2015
Minerals Engineering, doi: 10.1016/j.mineng.2014.10.013
DOI See at publisher website
Article 2 Reads 6 Citations Mineral carbonation of PGM mine tailings for CO2 storage in South Africa: A case study N.A. Meyer, J.U. Vögeli, M. Becker, J.L. Broadhurst, D.L. Re... Published: 01 May 2014
Minerals Engineering, doi: 10.1016/j.mineng.2013.10.014
DOI See at publisher website
Article 1 Read 0 Citations A comparison of pyrrhotite rejection and passivation in two nickel ores T. Chimbganda, M. Becker, J.L. Broadhurst, S.T.L. Harrison, ... Published: 01 June 2013
Minerals Engineering, doi: 10.1016/j.mineng.2013.03.031
DOI See at publisher website
Article 2 Reads 2 Citations Mitigating acid rock drainage risks while recovering low-sulfur coal from ultrafine colliery wastes using froth flotatio... J.-P. Franzidis, J.L. Broadhurst, C. Kazadi Mbamba, S.T.L. H... Published: 01 March 2012
Minerals Engineering, doi: 10.1016/j.mineng.2012.02.001
DOI See at publisher website
ABS Show/hide abstract
Ultrafine coal wastes contain sulfide minerals, particularly pyrite, which oxidize and give rise to acid rock drainage (ARD) resulting in extensive and prolonged contamination of local ground and surface waters. Currently, mining operations emphasise an end-of-pipe approach to ARD management using costly chemical or biological treatment techniques, which do not address the long term problem of achieving sustainable closure solutions within the resource lifetime. Eliminating ARD potential before waste disposal would have a major beneficial impact on water quality and facilitate long term closure solutions. Recovering a saleable coal product would be an added economic incentive.This paper presents the results of an investigation to establish the feasibility of a two-stage flotation process to produce: (i) a low-volume sulfide-rich concentrate, (ii) a high-volume benign (low sulfur) tailings, and (iii) a coal concentrate. Laboratory-scale batch flotation experiments were carried out using an oily collector to float coal from samples of coal ultrafines and a xanthate collector to recover acid-generating sulfides. The results of acid generating potential tests (both static and biokinetic) indicate that a low-sulfur tailings with low ARD potential may be produced, together with a coal ultrafine concentrate stream with a low ash content. Graphical Highlights► We propose a two-stage flotation process to mitigate ARD in ultrafine colliery waste. ► We test the process using an inertinite-rich medium rank bituminous colliery waste. ► Clean coal product and a low-volume sulfide-rich stream are produced as concentrates. ► The low-sulfur tailings have increased acid neutralizing capacity, reducing ARD risk. ► A new biokinetic ARD potential test confirms the tailings as being non-acid forming.
Article 1 Read 4 Citations Mitigating the generation of acid mine drainage from copper sulfide tailings impoundments in perpetuity: A case study fo... A.H. Hesketh, J.L. Broadhurst, S.T.L. Harrison Published: 01 February 2010
Minerals Engineering, doi: 10.1016/j.mineng.2009.09.020
DOI See at publisher website
ABS Show/hide abstract
Acid mine drainage (AMD) is one of the most serious and pervasive challenges facing the minerals industry. Current philosophy in sulfide tailings management takes an end-of-pipe approach which is yet to be shown to be sufficient to prevent post-closure impacts from AMD and guarantee “walk-away” status. An improved, integrated approach to tailings management and AMD mitigation is proposed, whereby conventional tailings are separated with the use of flotation into a largely benign tailings stream and a sulfide-rich product. The key features of this conceptual approach are outlined and partly demonstrated for the case of porphyry-type copper sulfide tailings. The significance of this approach is that it provides a basis for the identification of opportunities for the development of new process designs incorporating waste management systems for mitigating AMD in a manner consistent with the principles of cleaner production and sustainable development.