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Processes 2018, 6(10), 186; https://doi.org/10.3390/pr6100186

Experimental Investigation of the Decarburization Behavior of Medical Waste Incinerator Fly Ash (MWIFA)

1
School of Science, Tianjin Chengjian University, Tianjin 300384, China
2
School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, China
*
Author to whom correspondence should be addressed.
Received: 5 September 2018 / Revised: 30 September 2018 / Accepted: 2 October 2018 / Published: 8 October 2018
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Abstract

The objective of the research was to compare the flotation performance of medical waste incinerator fly ash (MWIFA) by considering two methods: the cyclonic-static micro-bubble flotation column (FCSMC) method and conventional flotation cell (CFC) method. The results indicated that for FSCMC, the optimum parameters were kerosene = 3.5 g/kg·ash, methyl isobutyl carbinol (MIBC) = 0.2 g/kg·ash, Tween 80 = 7.5% of kerosene concentration, slurry concentration = 100 g/L, and pump speed = 380 r/min. The optimized conditions resulted in a higher dioxin removal efficiency (90.98%), carbon removal efficiency (91.88%) and lower loss on ignition (LOI) (4.96%). The data obtained from the CFC under different optimum operating conditions were 88.65%, 90.63% and 5.68%, respectively. FSCMC was proven to be more efficient for the flotation of MWIFA than CFC. View Full-Text
Keywords: incinerator fly ash; cyclonic-static micro-bubble flotation column; carbon constituents; dioxins incinerator fly ash; cyclonic-static micro-bubble flotation column; carbon constituents; dioxins
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Wei, G.; Liu, H.; Liu, F.; Zeng, T.; Liu, G.; Zhou, J. Experimental Investigation of the Decarburization Behavior of Medical Waste Incinerator Fly Ash (MWIFA). Processes 2018, 6, 186.

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