期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2018
卷号：9
期号：9
页码：2686-2691
出版社：University of Mohammed Premier Oujda
摘要：Activated carbon has been used for many years for the adsorption of gases fromnatural gas streams, carbon dioxide, and sewage vents. However, in many agriculturalcountries, agricultural by-products are often the problem of environmental pollutionand affect human health. H2S in biogas is very toxic and corrode the equipment.Therefore, there is a critical need for expanding research involving removal of H2Sfrom biogas. Some methods were studied so far: adsorption, absorption, permeationthrough membrane. In this theme, we did recycle of activated carbon used for wastewater treatment’s application .Four alkaline solution based KOH with different ratioswere applied to impregnate activated carbon. The hydrogen sulfide used forapplication was taken from a purge at the chimney of phosphoric units. The molarration of H2S adsorbed to KOH is approximately 1 (mole H2S /mole-MOH). Thedominant reaction may be expressed as H2S MOH ! MHS H2O.Alkalinesactivated carbons were analyzed using Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy (SEM), and BET surface area analysis.
