电致泳力对电絮凝中海洋微藻（三角褐指藻）收获的影响。
Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation.
机构信息
Department of Civil and Architectural Engineering, College of Engineering, Qatar University, 2713, Doha, Qatar.
Department of Civil and Architectural Engineering, College of Engineering, Qatar University, 2713, Doha, Qatar.
出版信息
J Environ Manage. 2020 Apr 15;260:110106. doi: 10.1016/j.jenvman.2020.110106. Epub 2020 Jan 24.
In this study, a new electrocoagulation electrode configuration has been investigated in order to induce dielectrophoretic (DEP) force for the enhanced harvesting of marine microalgae (Tetraselmis sp.). Asymmetrical aluminum electrodes with an alternative current power supply were used. The impact of electrode configuration, current density and electrolysis time were evaluated. A maximum algal harvesting efficiency of 90.9% was achieved using 7.1 mA/cm current density and 10 min electrolysis time. The energy consumption was found to be 4.62 kWh/kg of microalgae. The major significance of using the new electrode configuration was found in the aluminum content in the harvested biomass which decreased by 52% compared to the conventional symmetrical electrocoagulation electrodes.
本研究旨在探索一种新型的电凝电极结构，以产生介电泳（DEP）力，从而增强海洋微藻（Tetraselmis sp.）的收获效率。采用了带有交流电源的不对称铝电极。评估了电极结构、电流密度和电解时间的影响。使用 7.1 mA/cm 的电流密度和 10 分钟的电解时间，可实现最高 90.9%的藻细胞收获效率。发现能量消耗为 4.62 kWh/kg 的微藻。与传统的对称电凝电极相比，使用新型电极结构的主要意义在于收获生物质中的铝含量降低了 52%。
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