促进厨余垃圾处理、微生物燃料电池生物电能生成和小球藻油脂生产的协同作用。
Mutual facilitations of food waste treatment, microbial fuel cell bioelectricity generation and Chlorella vulgaris lipid production.
机构信息
School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China.
School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, No. 17923 Jingshi Road, Jinan 250061, China.
出版信息
Bioresour Technol. 2016 Mar;203:50-5. doi: 10.1016/j.biortech.2015.12.049. Epub 2015 Dec 18.
Food waste contains large amount of organic matter that may be troublesome for handing, storage and transportation. A microbial fuel cell (MFC) was successfully constructed with different inoculum densities of Chlorella vulgaris for promoting food waste treatment. Maximum COD removal efficiency was registered with 44% and 25 g CODL(-1)d(-1) of substrate degradation rate when inoculated with the optimal initial density (150 mg L(-1)) of C. vulgaris, which were 2.9 times and 3.1 times higher than that of the abiotic cathode. With the optimum inoculum density of C. vulgaris, the highest open circuit voltage, working voltage and power density of MFC were 260 mV, 170 mV and 19151 mW m(-3), respectively. Besides the high biodiesel quality, promoted by MFC stimulation the biomass productivity and highest total lipid content of C. vulgaris were 207 mg L(-1)d(-1) and 31%, which were roughly 2.7 times and 1.2 times higher than the control group.
食物垃圾含有大量的有机物，在处理、储存和运输方面可能会带来麻烦。采用不同接种密度的普通小球藻成功构建了微生物燃料电池（MFC），以促进食物垃圾处理。当接种最佳初始密度（150mg/L）的普通小球藻时，COD 去除效率最高可达 44%，基质降解速率为 25g COD/L/d，分别是生物阴极的 2.9 倍和 3.1 倍。在普通小球藻的最佳接种密度下，MFC 的开路电压、工作电压和最大功率密度最高分别为 260mV、170mV 和 19151mW/m³。除了 MFC 刺激产生的高质量生物柴油外，普通小球藻的生物量生产率和最高总脂含量也得到了提高，分别为 207mg/L/d 和 31%，分别比对照组高 2.7 倍和 1.2 倍。
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