Development of marco-porous ecotiles from fresh water sludge for cadmium removal
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Date
2019-06
Authors
Yeoh Kar Keat
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Abstract
In this research, investigation on the cadmium removal efficiency of a ecoclay
product is explored. Fresh water sludge obtained from Sungai Dua Water treatment
Plant is used as a partial substitution of the raw material to fabricate a ceramic tiles.
Fresh water sludge is found to have similar chemical component and physical
properties as the raw material of the ceramic tiles, hence sludge could be used as
partial substitution of the clay composition in tiles making. Pore-forming agent, rice
husk, were added into the composition to fabricate a porous ceramic tiles to further
increase the surface area of the sample for the optimum cadmium removal efficiency.
Urea functionalisation is one of the key for a ceramic tiles to increase the removal
efficiency on the cadmium solution. The results shows that functionalised ecoclay
sample with 10 wt% pore-forming agent to have the best cadmium removal
efficiency. The optimum time for the maximum cadmium removal efficiency is found
to be 8 hours.