BTXs Removal with Transition Metals Coated Beds, Considering the Plausible Reaction Mechanisms

Abstract

In this study, a natural zeolite (i.e., Clinoptilolite) was used as bed of a lab scale packed tower. The bed was coated with two transition metals nano-scale particles (i.e., Fe 0 and Cu 2 O). Each coated metal to bed ratio was 4.6 wt.% and the experiments were conducted in air flow of 1 L minG 1 and temperature of 200°C. The results showed up to 83.83% of BTX (benzene, toluene and xylene) removal for Fe 0 and respectively 32.0 and 56.98% for Cu 2 O and combined Fe 0 -Cu 2 O coated beds. However, the pollutants mineralization/elimination ratio on the combined metals coated bed, with up to 0.83, was greater than the remains which were 0.58 and 0.37 in order for Fe 0 and Cu 2 O coated beds.

Enhanced removal of benzene in non-thermal plasma with ozonation, flow recycling, and flow recirculation

“…Benzene as a strong solvent is widely used in various industrial processes. It easily releases to ambient air given the high vapor pressure of 12 672.20 Pa [1]. The major emission sources of benzene into the atmosphere are industrial processes and gasoline [2,3].…”