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The Middling-scale Study On Biomass Anaerobic Digestion By Underground River

Posted on:2007-10-17Degree:MasterType:Thesis
Country:ChinaCandidate:Y RuanFull Text:PDF
GTID:2121360242962207Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
With the development of agriculture and breed aquatics domestic animals , the biomass wastes is rapidly increasing in China and severity pollute the environment while the energy sources is quickly decreasing. By the way of energy recovery of biomass wastes, not only can we reduce influence of biomass wastes on the environment, but also save and create energy sources.In this paper, the author researches a novel pathway–"UR"anaerobic digestion technology of fluidized biomass wastes, which combines the anaerobic digestion and sewerage disposal - to dispose biomass wastes in the process of flow, anaerobic digestion was completed and continuity and dynamic of biomass wastes disposal were realized.The effects of many factors on the anaerobic digestion from municipal solid waste are studied. Furthermore, as the condition of proper PH value and agitation, the effects of particle diameter, total solid (TS), C/N and inoculation amount on the anaerobic digestion from municipal solid waste are researched by the L9(34) orthogonal design experiment .The optimum technology of anaerobic digestion is found out by orthogonal test analysis with the value: particle diameter 0.4 mm , TS 10% , C/N 20, inoculation amount 20%. Finally, through middling-scale test under the condition of the optimum technology of anaerobic digestion. The study regarded pig excrement and green grass as fermented raw materials, under the condition of proper pH value , total solid content, particle diameter , inoculation amount and C/N to find out the relationship between the methane yield and temperature and methane generation rate . This makes it possible that UR anaerobic digestion technology of fluidized biomass wastes is realized in engineering.Biomass wastes disposal by"UR"anaerobic digestion technology of fluidized biomass wastes is beneficial to realized continuity, automation and industrialization. Furthermore, the technology with wide applied perspective is of great significance for energy recovery of biomass wastes.
Keywords/Search Tags:Horizontal reactor, Biomass, Anaerobic Digestion, Orthogonal Design, Temperature
PDF Full Text Request
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