Cryptogamic Packed Biofilter as Potential Adsorbent for CO2, NH3, and H2S Impurities from Biogas

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dc.contributor.author Temba, Norbert W.
dc.contributor.author Kivevele, Thomas
dc.contributor.author Pogrebnaya, Tatiana
dc.date.accessioned 2020-07-21T08:13:29Z
dc.date.available 2020-07-21T08:13:29Z
dc.date.issued 2020-07-07
dc.identifier.uri https://doi.org/10.1155/2020/8514607
dc.identifier.uri https://dspace.nm-aist.ac.tz/handle/20.500.12479/850
dc.description This research article published by Hindawi, 2020 en_US
dc.description.abstract The presence of elevated concentrations of carbon dioxide, hydrogen sulfide, ammonia, and trace impurities in biogas affect its caloric value as well as causes corrosion and is extremely toxic. There are various methods in existence for removal of these impurities, but most are chemically based and expensive and are limited in use. In our work, cryptogams (moss) integrated with soil and biochar packed in a filter have been employed for simultaneous removal of CO2, H2S, and NH3, from biogas. Different soil types rich in metallic oxides at different masses of 100 g, 150 g, and 200 g with a fixed mass of moss and biochar were tested in an on-site experiment to determine the removal efficiency (RE) and sorption capacity (SC). The adsorption dynamics of the filters were investigated at two flow rates, 80 ml/min and 100 ml/min, by determining removal efficiency. For the contribution of each substrate, sorption capacity and breakthrough time were determined by considering 5 g of each substrate that made up the filter. The soils with a high content of extractable cations showed excellent adsorption capacity for H2S by about 20 g S/100 g, which was higher than other adsorbents tested. It was found that integrated biofilter made up of bed arrangement of the soil, biochar, and moss plant improved the quality of biogas with SC of 11 g S and RE of 93% for H2S, 72% for NH3, and 68% for CO2. en_US
dc.language.iso en en_US
dc.publisher Hindawi en_US
dc.subject Research Subject Categories::NATURAL SCIENCES en_US
dc.title Cryptogamic Packed Biofilter as Potential Adsorbent for CO2, NH3, and H2S Impurities from Biogas en_US
dc.type Article en_US

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