Mulopo, JZvimba, JNSwanepoel, HBologo, LTMaree, J2013-01-082013-01-082012-01Mulopo, J, Zvimba, JN, Swanepoel, H, Bologo, LT and Maree, J. 2012. Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage. Water Science and Technology, vol. 65(2), pp 324-3310273-1223http://www.iwaponline.com/wst/06502/wst065020324.htmhttp://hdl.handle.net/10204/6414Copyright: 2012 IWA Publishing. This is an ABSTRACT ONLY. The definitive version is published in Journal of Water Science and Technology, vol 65(2), pp 324-331Batch regeneration of barium carbonate (BaCO3) from barium sulphide (BaS) slurries by passing CO2 gas into a pilot-scale bubbling column reactor under ambient conditions was used to assess the technical feasibility of BaCO3 recovery in the Alkali Barium Calcium (ABC) desalination process and its use for sulphate removal from high sulphate Acid Mine Drainage (AMD). The effect of key process parameters, such as BaS slurry concentration and CO2 flow rate on the carbonation, as well as the extent of sulphate removal from AMD using the recovered BaCO3 were investigated. It was observed that the carbonation reaction rate for BaCO3 regeneration in a bubbling column reactor significantly increased with increase in carbon dioxide (CO2) flow rate whereas the BaS slurry content within the range 5–10% slurry content did not significantly affect the carbonation rate. The CO2 flow rate also had an impact on the BaCO3 morphology. The BaCO3 recovered from the pilot-scale bubbling column reactor demonstrated effective sulphate removal ability during AMD treatment compared with commercial BaCO3.enAcid mine drainageAMDBarium carbonateBarium sulphideCarbonationArticleMulopo, J., Zvimba, J., Swanepoel, H., Bologo, L., & Maree, J. (2012). Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage. http://hdl.handle.net/10204/6414Mulopo, J, JN Zvimba, H Swanepoel, LT Bologo, and J Maree "Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage." (2012) http://hdl.handle.net/10204/6414Mulopo J, Zvimba J, Swanepoel H, Bologo L, Maree J. Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage. 2012; http://hdl.handle.net/10204/6414.TY - Article AU - Mulopo, J AU - Zvimba, JN AU - Swanepoel, H AU - Bologo, LT AU - Maree, J AB - Batch regeneration of barium carbonate (BaCO3) from barium sulphide (BaS) slurries by passing CO2 gas into a pilot-scale bubbling column reactor under ambient conditions was used to assess the technical feasibility of BaCO3 recovery in the Alkali Barium Calcium (ABC) desalination process and its use for sulphate removal from high sulphate Acid Mine Drainage (AMD). The effect of key process parameters, such as BaS slurry concentration and CO2 flow rate on the carbonation, as well as the extent of sulphate removal from AMD using the recovered BaCO3 were investigated. It was observed that the carbonation reaction rate for BaCO3 regeneration in a bubbling column reactor significantly increased with increase in carbon dioxide (CO2) flow rate whereas the BaS slurry content within the range 5–10% slurry content did not significantly affect the carbonation rate. The CO2 flow rate also had an impact on the BaCO3 morphology. The BaCO3 recovered from the pilot-scale bubbling column reactor demonstrated effective sulphate removal ability during AMD treatment compared with commercial BaCO3. DA - 2012-01 DB - ResearchSpace DP - CSIR KW - Acid mine drainage KW - AMD KW - Barium carbonate KW - Barium sulphide KW - Carbonation LK - https://researchspace.csir.co.za PY - 2012 SM - 0273-1223 T1 - Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage TI - Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage UR - http://hdl.handle.net/10204/6414 ER -