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标题：Studies of Biogas Production from Green Seaweeds
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作者：Johnner P. Sitompul ; Asep Bayu ; Tatang H. Soerawidjaja 等
期刊名称：International Journal of Environment and Bioenergy
电子版ISSN：2165-8951
出版年度：2012
卷号：3
期号：3
页码：132-144
语种：English
出版社：Modern Scientific Press
摘要：Marine biomasses such as green seaweeds are reported to contain far less lignin than terrestrial biomass and thus conceptually making them good feedstock for biogas production. The objective of this research is to investigate the potential of green seaweed Ulva lactuca from Indonesia as a feedstock for biogas production. A semi-pilot scale experiment with 5-L digester was set up to study the potential of the green seaweed as feedstock to produce biogas. Wet biomass was mixed and blended with water in 1:2 ratios to produce feedstock juice. The juice was then mixed with inoculums prepared from earlier processes and 3.5 L of this mixture was added to a 5 L-bioreactor or digester. The initial inoculums were prepared from cow manure and water. The semi-continuous process was applied for the anaerobic biodegradation of slurry in the digester. The biogas generated was measured daily to study the biodegradability of the biomass and further, chemically oxygen demand (COD) of the slurry was measured. The flammability test was also conducted to check the combustibility of the produced biogas. The methane and carbon dioxide contents of the generated biogas were around 49.90% and 43.93%, respectively. The gas was flammable and has calculated high heating value (HHV) 15.3 kJ/g-biogas, based on methane content. This research has thus shown that green seaweeds are quite promising feedstock for biogas production in coastal areas.
关键词：seaweeds;macroalgae;Ulva lactuca;banana stem waste;anaerobic biodegradability;biogas production;high heating value