TY - GEN
T1 - Stabilisation and solidification of steel industry sludge
AU - Falayi, Thabo
AU - Ntuli, Freeman
N1 - Export Date: 19 June 2018
PY - 2018
Y1 - 2018
N2 - This report presents the research done on the treatment of steel industry sludge by the solidification /stabilisation (S/S) process using desilicated fly ash (DFA) and lime as the binding agents. The sludge was characterized using X-ray fluorescence, X-ray diffraction, and geotechnical techniques. The main oxides in the sludge were iron oxide and zinc oxide. Unconfined compressed strength of 0.49 MPa was achieved with 40% DFA: lime (70:30) addition, at pH of 12.88. The leachability of Fe was reduced by 94% and Zn by 98.6%. The rate of lime consumption during stabilisation was best described with 2nd order kinetics plot.
AB - This report presents the research done on the treatment of steel industry sludge by the solidification /stabilisation (S/S) process using desilicated fly ash (DFA) and lime as the binding agents. The sludge was characterized using X-ray fluorescence, X-ray diffraction, and geotechnical techniques. The main oxides in the sludge were iron oxide and zinc oxide. Unconfined compressed strength of 0.49 MPa was achieved with 40% DFA: lime (70:30) addition, at pH of 12.88. The leachability of Fe was reduced by 94% and Zn by 98.6%. The rate of lime consumption during stabilisation was best described with 2nd order kinetics plot.
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U2 - 10.1109/HNICEM.2017.8269539
DO - 10.1109/HNICEM.2017.8269539
M3 - Conference contribution
T3 - HNICEM 2017 - 9th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management
SP - 1
EP - 4
BT - HNICEM 2017 - 9th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management, HNICEM 2017
Y2 - 29 November 2017 through 1 December 2017
ER -