The Use of Bauxite as an Arsenic Filter

Show simple item record Agyarko Ndur, Samuel Osei, Henry Abbey, Ebenezer Charles Joe -Asare, Theophilus 2023-08-31T19:21:16Z 2023-08-31T19:21:16Z 2019-06-01
dc.identifier.citation Harvard en_US
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/760
dc.description.abstract Arsenic (As) has the potential to negatively affect soils and groundwater quality, and cause several public health challenges. It is usually concentrated and released during metal mining of ores that contains arsenic-bearing minerals. Remediation strategies are in place to avoid pollution. In this study, bauxite from Awaso, Ghana, was characterised, and its ability to sequester As was tested under varying conditions of temperature, Eh and pH. The study showed that the best particle size in the range utilised was 80% passing 2 mm as it allowed easy percolation, and As removal was about 95%. The reaction is a favourable pseudo-second order reaction that is spontaneous and thermodynamically stable and compares well with the Langmuir Sorption Isotherm. About 80% sorption was achieved within 20 minutes of contact with low desorption rate of less than 1.8%. The study thus concludes that bauxite is a good filter for arsenic. en_US
dc.language.iso en en_US
dc.publisher Ghana Mining Journal en_US
dc.subject Arsenic, Bauxite, Filter, Sorption, Isotherm en_US
dc.title The Use of Bauxite as an Arsenic Filter en_US
dc.type Article en_US

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