GENERAL ENQUIRIES: Tel: + 27 12 841 2911 | Email: callcentre@csir.co.za

Show simple item record

dc.contributor.author Masindi, Vhahangwele
dc.contributor.author Osman, Muhammad S
dc.contributor.author Abu-Mahfouz, Adnan MI
dc.date.accessioned 2017-11-06T12:54:15Z
dc.date.available 2017-11-06T12:54:15Z
dc.date.issued 2017-12
dc.identifier.citation Masindi, V., Osman, M.S. and Abu-Mahfouz, A.M.I. 2017. Integrated treatment of acid mine drainage using BOF slag, lime/soda ash and reverse osmosis (RO): Implication for the production of drinking water. Desalination, vol. 424: 45-52 en_US
dc.identifier.issn 0011-9164
dc.identifier.uri http://dx.doi.org/10.1016/j.desal.2017.10.002
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S0011916417309980
dc.identifier.uri http://hdl.handle.net/10204/9732
dc.description Copyright: 2017 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, kindly consult the publisher's website. en_US
dc.description.abstract Acid mine drainage has been an issue of prime concern to international scientific communities. This is due to the magnitude, nature and extent of its environmental impacts. Acid mine drainage (AMD) contains hazardous and toxic chemical species that require removal prior discharging mine water to different environmental compartments. A number of mine water treatment technologies have been developed but they were reported to contain certain benefits and drawbacks. However, there is a need to come-up with environmental friendly and zeroliquid-discharge technologies. The purpose of this novel study was to produce drinking water and recover valuable minerals from acid mine drainage using an integration of Basic Oxygen Furnace (BOF) slag, lime, soda ash and Reverse Osmosis (RO) system. The process can produce very pure water and recover valuable minerals such as hematite, goethite, gypsum, and limestone. Furthermore, brine will be taken to free desalinator for further recovery of salts. To achieve the goals of this study, semi-pilot experiments were done in the laboratory using the aforementioned integrated approach. Interaction of BOF and AMD increased the pH of mine water to =8.> 99% metals and 75% sulphate were also removal using BOF slag. Residual sulphates and hardness were reduced using lime and soda ash respectively. Gypsum and brucite were recovered as valuable minerals in the lime reactor. Ca as hydrated lime and limestone were recovered in the soda ash reactor. The recovered minerals could be sold as valuable minerals to metallurgical houses and off-set the process/running cost. Reverse Osmosis (RO) was used to further clean the water to meet drinking water quality. A single pass RO system was simulated in Reverse Osmosis System Analysis (ROSA). The produced water meets the requirements of the South African National Standard (SANS) 241 Drinking Water Specifications. As such, it can be concluded that this integrated technology has shown that drinking water and valuable minerals can be recovered from AMD. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;19668
dc.subject Acid mine drainage en_US
dc.subject Basic oxygen furnace slag en_US
dc.subject Lime en_US
dc.subject Soda ash en_US
dc.subject Reverse osmosis en_US
dc.subject Chemical species attenuation and synthesis en_US
dc.title Integrated treatment of acid mine drainage using BOF slag, lime/soda ash and reverse osmosis (RO): Implication for the production of drinking water en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ResearchSpace


Advanced Search

Browse

My Account