期刊
ENVIRONMENTAL TECHNOLOGY
卷 30, 期 12, 页码 1297-1304出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330902984769
关键词
anaerobic bioreactor; hydrogen production; SRB; sulphur cycle; COD removal efficiency
资金
- Program for New Century Excellent Talents in University [NCET-07-0683]
- National Basic Research Program of China [2009CB220000]
The experiment was conducted to investigate continuous hydrogen production with lower cost and sulphate-rich wastewater treatment. In this paper, both anaerobic bio-treatment of sulphate-rich wastewater and hydrogen production were applied to construct a laboratory-scale combined sulphur cycle based system. The system consisted of two reactors, which were a photocatalytic reactor and an anaerobic bioreactor, respectively. In the anaerobic bioreactor, sulphate-reducing bacteria (SRB) converted SO42- to S2-. The produced S2- yielded by SRB was further used as a sacrificial reagent to produce H2 in the photocatalytic reactor. Then, S2- was changed into SO42-, which returned to the anaerobic bioreactor for treatment again. The present study highlighted an advantage compared with the conventional method, in that no extra S2-was added to the photocatalytic reactor, which reduced the total cost and realized continuous hydrogen production. The average COD removal efficiency was 79.6%.
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