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篇目详细内容 |
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【篇名】 |
Effect of illumination on the hydrogen-production capability of anaerobic activated sludge |
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【刊名】 |
Frontiers of Environmental Science and Engineering |
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【刊名缩写】 |
Front.Environ.Sci.Eng. |
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【ISSN】 |
2095-2201 |
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【EISSN】 |
2095-221X |
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【DOI】 |
10.1007/s11783-011-0384-5 |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2012 |
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【卷期】 |
6
卷1期 |
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【页码】 |
125-130
页,共
6
页 |
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【作者】 |
Guochen ZHENG;
Jianzheng LI;
Feng ZHAO;
Liguo ZHANG;
Li WEI;
Qiaoying BAN;
Yongsheng ZHAO;
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【关键词】 |
biohydrogen production; dark fermentation; anaerobic activated sludge; light; dehydrogenase |
【摘要】 |
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To investigate the influence of illumination on the fermentative hydrogen production system, the hydrogen production efficiencies of two kinds of anaerobic activated sludge (floc and granule) from an anaerobic baffled reactor were detected under visible light, dark and light-dark, respectively. The 10？mL floc sludge or granular sludge was respectively inoculated to 100？mL diluted molasses (chemical oxygen demand of 8000？mg·L？1) in a 250？mL serum bottle, and cultured for 24？h at 37°C under different illumination conditions. The results showed that the floc was more sensitive to illumination than the granule. A hydrogen yield of 19.8？mL was obtained in the dark with a specific hydrogen production rate of 3.52？mol·kg？1MLVSS·d？1 (floc), which was the highest among the three illumination conditions. Under dark condition, the hydrogen yield of floc sludge reached the highest with the specific hydrogen production rate of 3.52？mol·kg？1MLVSS·d？1, and under light-dark, light, the specific hydrogen production rate was 3.11 and 2.21？mol·kg？1MLVSS·d？1, respectively. The results demonstrated that the illumination may affect the dehydrogenase activity of sludge as well as the activity of hydrogen-producing acetogens and then impact hydrogen production capacity. |
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