不同光照强度和光照/黑暗周期对光合微藻微生物燃料电池性能的影响。
The effect of different light intensities and light/dark regimes on the performance of photosynthetic microalgae microbial fuel cell.
机构信息
Department of Energy Engineering, Sharif Energy Research Institute, Sharif University of Technology, Tehran, Iran.
Department of Energy Engineering, Sharif Energy Research Institute, Sharif University of Technology, Tehran, Iran.
出版信息
Bioresour Technol. 2018 Aug;261:350-360. doi: 10.1016/j.biortech.2018.04.026. Epub 2018 Apr 10.
This study develops a photosynthetic microalgae microbial fuel cell (PMMFC) engaged Chlorella vulgaris microalgae to investigate effect of light intensities and illumination regimes on simultaneous production of bioelectricity, biomass and wastewater treatment. The performance of the system under different light intensity (3500, 5000, 7000 and 10,000 lx) and light/dark regimes (24/00, 12/12, 16/8 h) was investigated. The optimum light intensity and light/dark regimes for achieving maximum yield of PMMFC were obtained. The maximum power density of 126 mW m, the coulombic efficiency of 78% and COD removal of 5.47% were achieved. The maximum biomass concentration of 4 g l (or biomass yield of 0.44 g l day) was obtained in continuous light intensity of 10,000 lx. The comparison of the PMMFC performance with air-cathode and abiotic-cathode MFCs shows that the maximum power density of air-cathode MFC was only 13% higher than PMMFC.
本研究开发了一种光合微藻微生物燃料电池（PMMFC），利用普通小球藻微藻来研究不同光照强度和光照制度对生物电能、生物量和废水处理的协同生产的影响。研究了不同光照强度（3500、5000、7000 和 10000 lx）和光照/黑暗制度（24/0、12/12、16/8 h）下系统的性能。得出了实现 PMMFC 最大产量的最佳光照强度和光照/黑暗制度。获得了 126 mW/m 的最大功率密度、78%的库仑效率和 5.47%的 COD 去除率。在 10000 lx 的连续光照强度下，获得了 4 g/l 的最大生物质浓度（或 0.44 g/l/d 的生物质产量）。将 PMMFC 的性能与空气阴极和非生物阴极 MFC 进行比较表明，空气阴极 MFC 的最大功率密度仅比 PMMFC 高 13%。
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