Fermentative hydrogen production from tofu-processing waste and anaerobic digester sludge using microbial consortium
Fermentative hydrogen production from tofu-processing waste and anaerobic digester sludge using microbial consortium
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DOI：
10.1016/j.biortech.2009.03.040
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发表时间：
2010-01-01
影响因子：
11.4
通讯作者：
Lee, Dong-Yeol
中科院分区：
文献类型：
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作者：
Kim, Mi-Sun;Lee, Dong-Yeol
豆腐加工废物和厌氧消化污泥的组合进行了研究，其发酵H-2生产能力在分批和连续模式中使用嗜热混合培养热处理（110 ℃，30分钟）在0.5%的HCl的存在下，豆腐废物的可溶性碳水化合物含量从2.2增加到10.4克/升。将厌氧消化污泥添加到豆腐渣中作为营养物质的补充，在间歇条件下，厌氧消化污泥的最佳添加比例为20%（v/v）。在连续实验中，HRT（水力停留时间）和pH值的影响进行了研究的范围为2-6小时和5.0-6.0，分别。在HRT 4 h和pH 5.5下获得最大H-2生产速率（12.0 I H-2/I/天）和产率（2.3 mol H-2/mol葡萄糖当量），同时保持顶空气体为50-60%（v/v）的H-2而不含CH 4。本研究表明，豆腐加工废物和消化池污泥的组合可以被认为是最有前途的有机废物的连续H-2生产的形式之一。(C)2009爱思唯尔有限公司版权所有。
The combination of tofu-processing waste and anaerobic digester sludge was studied for its fermentative H-2 production capacity in batch and continuous modes using a thermophilic mixed culture Heat-treatment (110 degrees C, 30 min) in the presence of 0.5% HCl increased the soluble carbohydrate content of the tofu waste from 2.2 to 10.4 g/l. Anaerobic digester sludge was added to the tofu waste for Supplementary nutrients with the optimal mixing ratio of 20% (v/v) under batch conditions. In continuous experiments, the effects of HRT(hydraulic retention time) and pH were investigated for the ranges of 2-6 h and 5.0-6.0, respectively. The maximal H-2 production rate (12.0 I H-2/I/day) and yield (2.3 mol H-2/mol glucose equivalent) were obtained at HRT 4 h and pH 5.5 while maintaining the head space gas at 50-60% (v/v) of H-2 without CH4. This study indicates that the combination of tofu-processing waste and digester sludge can be considered to be one of the most promising forms of organic waste for continuous H-2 production. (C) 2009 Elsevier Ltd. All rights reserved.