Comparison of start-up strategies and process performance during semi-continuous anaerobic digestion of sugarcane filter cake co-digested with bagasse 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Waste Management
年/卷/期
2000 / 48 /
页码
199-208
出版商
Elsevier Ltd
ISSN号
0956053X
作者
Janke, Leandro 1;Leite, Athaydes F. 2;Nikolausz, Marcell 2;Radetski, Claudemir M. 3;Nelles, Michael 1;Stinner, Walter 4 1 Department of Biochemical Conversion, Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347, Germany, Faculty of Agricultural and Environmental Sciences, Department of Waste Management, University of Rostock, Justus-von-Liebig-Weg 6, 18059, Germany leandro.janke@dbfz.de 2 Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318, Germany 3 Laboratório de Remediação Ambiental, Universidade do Vale do Itajaí, Rua Uruguai 458, 88302-202, Brazil 4 Department of Biochemical Conversion, Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347, Germany;
摘要
The anaerobic digestion of sugarcane filter cake and the option of co-digestion with bagasse were investigated in a semi-continuous feeding regime to assess the main parameters used for large-scale process designing. Moreover, fresh cattle manure was considered as alternative inoculum for the start-up of biogas reactors in cases where digestate from a biogas plant would not be available in remote rural areas. Experiments were carried out in 6 lab-scale semi-continuous stirred-tank reactors at mesophilic conditions (38±1°C) while the main anaerobic digestion process parameters monitored. Fresh cattle manure demonstrated to be appropriate for the start-up process. However, an acclimation period was required due to the high initial volatile fatty acids concentration (8.5gL-1). Regardless the mono-digestion of filter cake presented 50% higher biogas yield (480mLgVS-1) than co-digestion with bagasse (320mLgVS-1) during steady state conditions. A large-scale co-digestion system would produce 58% more biogas (1008m3h-1) than mono-digestion of filter cake (634m3h-1) due to its higher biomass availability for biogas conversion. Considering that the biogas production rate was the technical parameter that displayed the most relevant differences between the analyzed substrate options (0.99-1.45m3biogasm3d-1). The decision of which substrate option should be implemented in practice would be mainly driven by the available construction techniques, since economically efficient tanks could compensate the lower biogas production rate of co-digestion option.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
关键词/主题词
Anaerobic digestion (major);Bagasse;Biogas;Fatty acids;Manures;Reactor startup;Substrates;Tanks (containers);Volatile fatty acids;
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部