期刊
BIOPROCESS AND BIOSYSTEMS ENGINEERING
卷 37, 期 5, 页码 873-880出版社
SPRINGER
DOI: 10.1007/s00449-013-1058-4
关键词
Photosynthetic algal microbial fuel cells; Immobilized Chlorella vulgaris; Electricity generation wastewater purification; Environmental factors
资金
- Natural Science Foundation of China [51178225, 21273120, 21250110515]
- Fund for the Doctoral Program of Higher Education of China [20110031110025]
- SRF for ROCS, SEM [2009-1001]
- Open Fund of Key Laboratory of Original Agro-environment Quality of Ministry of Agriculture
- Tianjin Key Laboratory of Agro-environment and Agro-product Safety [2012-SZJJ-CYM]
- [GEFC09-12]
- [NCET-08-0296]
A photosynthetic algal microbial fuel cell (PAMFC) was constructed by the introduction of immobilized microalgae (Chlorella vulgaris) into the cathode chamber of microbial fuel cells to fulfill electricity generation, biomass production and wastewater treatment. The immobilization conditions, including the concentration of immobilized matrix, initial inoculation concentration and cross-linking time, were investigated both for the growth of C. vulgaris and power generation. It performed the best at 5 % sodium alginate and 2 % calcium chloride as immobilization matrix, initial inoculation concentration of 10(6) cell/mL and cross-linking time of 4 h. Our findings indicated that C. vulgaris immobilization was an effective and promising approach to improve the performance of PAMFC, and after optimization the power density and Coulombic efficiency improved by 258 and 88.4 %, respectively. Important parameters such as temperature and light intensity were optimized on the performance. PAMFC could achieve a COD removal efficiency of 92.1 %, and simultaneously the maximum power density reached 2,572.8 mW/m(3) and the Coulombic efficiency was 14.1 %, under the light intensity of 5,000 lux and temperature at 25 A degrees C.
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