Biohydrogen production using an up-flow anaerobic sludge blanket reactor
Biohydrogen production using an up-flow anaerobic sludge blanket reactor
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DOI：
10.1016/s0360-3199(03)00082-x
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发表时间：
2004-01-01
影响因子：
7.2
通讯作者：
Lin, CY
中科院分区：
文献类型：
--
作者：
Chang, FY;Lin, CY
在上流式厌氧污泥床反应器中驯化污泥，建立产氢富集菌，将蔗糖(20gCOD/L)转化为氢气。运行水力停留时间(HRT)为24~4h，试验结果表明该UASB系统可用于制氢。在水力停留时间为8~20h时，产氢率基本保持不变，而在水力停留时间为4或24 h时，产氢率急剧下降，产氢率和比产氢率在水力停留时间为8h时达到最大值，其余各水力停留时间的产氢率均急剧下降。在水力停留时间为8h时，平均颗粒直径达到峰值为0.43 mm，每克生物质每天产生53.5mmolH-2，氢气含量为42.4%(v/v)。丁酸和乙酸酯是主要的发酵挥发性脂肪酸。厌氧颗粒污泥的动力学常数为内源衰减系数(K-d)0.1d(-1)和产率系数(Y-g)0.1gVSS/gCOD。平均细胞停留时间为22.2h，剩余污泥排放速率为3.24 L/天。(C)2003年国际氢能协会。爱思唯尔有限公司出版。保留所有权利。
Sewage sludge was acclimated to establish H-2-producing enrichment cultures for converting sucrose (20 g COD/l) into H-2 in an up-flow anaerobic sludge blanket (UASB) reactor. The operating hydraulic retention times (HRTs) were 24-4 h. The experimental results indicated that this UASB system could be used for hydrogen production. The hydrogen productivity was HRT dependent and nearly constant at the HRT of 8-20 h. However, it drastically decreased at an HRT of 4 or 24 h. The hydrogen production rate (HPR) and specific HPR peaked at the HRT of 8 h and drastically decreased at all other HRTs. At an HRT of 8 h, the average granular diameter peaked at 0.43 mm and each gram of biomass produced 53.5 mmol H-2/day with a hydrogen gas content of 42.4% (v/v). Butyrate and acetate were the main fermentation volatile fatty acids. The anaerobic granule sludge kinetic constants were endogenous decay coefficient (K-d) 0.1 day(-1) and yield coefficient (Y-g) 0.1 g VSS/g COD. The mean cell retention time was 22.2 h and the excess sludge discharge rate was 3.24 l/day. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.