Hydrogen Sulfide Removal by using Zeolite from Coal Bottom Ash in Composite adsorbent for Odor Removal and Wastewater Treatment

Abstract

This paper aim to synthesis zeolite by using coal bottom ash from power plant and used as
adsorbent to remove H2S gas, which as the odor and wastewater adsorbent from leachate in Municipal solid
waste (MSW) Plant. The zeolite was synthesized by fusion and hydrothermal process from coal bottom ash.
The adsorbent was prepared by using zeolite and polyethylene grafted maleic anhydride (PE-g-MA). The
composite was prepared by using twin-screw extrusion process, PE-g-MA used as compatibilizer to study the
effect of Zeolite content (0.25, 0.5, 0.75, 1, 1.5 and 2 phr) and TiO2 used as the additive to study the adsorption
capacity of zeolite composite at various the TiO2 ratio (0.5:0.25, 0.5:0.5, 0.5:0.75 and 0.5:1). The optimum
condition of zeolite composite material is Zeolite : TiO2 ratio of 0.5:0.75 produced the highest adsorption
capacity. Furthermore, the adsorption capacity at equilibrium were increased when the TiO2 and zeolite
loading are increased. The results suggested that the polyethylene composite material filled with zeolite has a
potential to be used as optimum hydrogen sulfide adsorbent, which as odor removal from leachate in MSW
Plant and can be used as adsorbent for wastewater treatment