Author:De Beer, Morris; Maree, JP; Liebenberg, L; Doucet, FJDate:Nov 2014The production of elemental sulphur and calcium carbonate (CaCO(sub3)) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step for the generation ...Read more
Author:Schachtschneider, KDate:Mar 2012Acid mine drainage (AMD) is a serious threat to water quality in South Africa. Questions are being asked to South African government leaders as to what they are doing to mitigate the effects that South Africa’s mining industry is having on ...Read more
Author:Mulopo, J; Mashego, M; Zvimba, JNDate:Jun 2012The conversion of steelmaking slag (a waste product of the steelmaking process) to calcium carbonate (CaCO3) was tested using hydrochloric acid, ammonium hydroxide and carbon dioxide via a pH-swing process. Batch reactors were used to assess ...Read more
Author:Gbadeyan, OJ; Adali, S; Bright, G; Sithole, Bishop B; Awogbemi, ODate:May 2020The present study focuses on the mechanical and absorption properties of composites reinforced by achatina fulica snail (S-shell) and eggshell particles (E-shell). Epoxy composites of snail and eggshell particles were prepared separately with ...Read more
Author:De Beer, Morris; Doucet, FJ; Maree, JP; Liebenberg, LDate:Aug 2015We recently showed that the production of elemental sulphur and calcium carbonate (CaCO3) from gypsum waste by thermally reducing the waste into calcium sulphide (CaS) followed by its direct aqueous carbonation yielded low-grade carbonate ...Read more