A microbial desalination process with microalgae biocathode using sodium bicarbonate as an inorganic carbon source
A microbial desalination process with microalgae biocathode using sodium bicarbonate as an inorganic carbon source
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DOI：
10.1016/j.ibiod.2018.04.003
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发表时间：
2018-05
影响因子：
4.8
通讯作者：
Thomas J. Arana;V. Gude
中科院分区：
文献类型：
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作者：
Thomas J. Arana;V. Gude
本研究调查了一种新的平台，用于产生能量的废水处理和脱盐方案，其中废水中存在的有机物被故意喂给产电细菌，以在称为光合微生物脱盐电池（PMDC）的三室生物电化学系统中产生生物电。研究了无机碳源在微藻生物阴极中的作用。添加碳酸氢钠（NaHCO 3）增加了发电量、微藻生长和脱盐速率。测得的功率密度为660 mW/m3，比不含NaHCO 3的PMDC高约7.5倍。72 h后脱盐率大于40%。总的来说，该过程可以是能源积极的，同时产生4.21千瓦时每立方米的废水处理，包括脱盐节能和微藻生物质能源潜力。
This research investigates a novel platform for an energy-yielding wastewater treatment and desalination scheme in which the organic matter present in wastewater is purposely fed to the exoelectrogenic bacteria to produce bioelectricity in a three-compartment bioelectrochemical system called photosynthetic microbial desalination cell (PMDC). The role of an inorganic carbon source in the microalgae biocathode was studied. Addition of sodium bicarbonate (NaHCO3) increased power production, microalgae growth and desalination rate. A power density of 660 mW/m3was measured which is about 7.5 times higher than the PMDCs without NaHCO3. Desalination rate was more than 40% after 72 h. Overall, the process could be energy-positive while producing 4.21 kWh per m3of wastewater treated including desalination energy savings and microalgae biomass energy potential.