TY - GEN
T1 - Removal of sulphates from acid mine drainage using TDTMA modified bentonite
AU - Moreroa, Mabatho
AU - Ntuli, Freeman
N1 - Publisher Copyright:
© Copyright International Association of Engineers.
PY - 2017
Y1 - 2017
N2 - Mozambican bentonite (MB) was modified using trimethyldecylammonium bromide (TDTMA) to enhance the removal capacity of sulphates from acid mine drainage (AMD). Through the modification process the surface properties of the clay was rendered organophilic. Batch adsorption experiments of the modified clay were done in a thermostatic shaker at different temperatures, mass loading of adsorbent, and cation exchange capacity (CEC) percentages to investigate the sorption behavior of sulphates from AMD. Characterization of the modified clay was done using XRF, XRD and FTIR to investigate the chemical composition of the clay, removal mechanism and structural change of the clay due to sorption of sulphates. The reaction was endothermic and fitted the Temkin isotherm model and the second order kinetic model. More sulphates were adsorbed at higher temperatures, suggesting that this was an endothermic reaction, which was supported by the positive value of enthalpy.
AB - Mozambican bentonite (MB) was modified using trimethyldecylammonium bromide (TDTMA) to enhance the removal capacity of sulphates from acid mine drainage (AMD). Through the modification process the surface properties of the clay was rendered organophilic. Batch adsorption experiments of the modified clay were done in a thermostatic shaker at different temperatures, mass loading of adsorbent, and cation exchange capacity (CEC) percentages to investigate the sorption behavior of sulphates from AMD. Characterization of the modified clay was done using XRF, XRD and FTIR to investigate the chemical composition of the clay, removal mechanism and structural change of the clay due to sorption of sulphates. The reaction was endothermic and fitted the Temkin isotherm model and the second order kinetic model. More sulphates were adsorbed at higher temperatures, suggesting that this was an endothermic reaction, which was supported by the positive value of enthalpy.
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M3 - Conference contribution
AN - SCOPUS:85054925612
SN - 9789881404848
VL - II
T3 - Lecture Notes in Engineering and Computer Science
SP - 674
EP - 678
BT - Proceedings of the World Congress on Engineering and Computer Science 2017, WCECS 2017
A2 - Ao, S. I.
A2 - Grundfest, W. S.
A2 - Douglas, Craig
PB - Newswood Limited
T2 - 2017 World Congress on Engineering and Computer Science, WCECS 2017
Y2 - 25 October 2017 through 27 October 2017
ER -