A microbial fuel cell driven capacitive deionization technology for removal of low level dissolved ions.
作者： Cuijie Feng , Chia-Hung Hou , Shaohua Chen , Chang-Ping Yu
DOI: 10.1016/J.CHEMOSPHERE.2012.12.068
关键词: Environmental engineering 、 Portable water purification 、 Electrolyte 、 Capacitive deionization 、 Sewage treatment 、 Energy recovery 、 Wastewater 、 Microbial fuel cell 、 Chemical engineering 、 Adsorption 、 Chemistry
摘要: The microbial fuel cell (MFC) is an emerging technology, which uses exoelectrogenic microorganisms to oxidize organic matter in the wastewater produce electricity. However, low energy output limits its application practice. Capacitive deionization (CDI), electrochemically controlled method for by adsorption of ions electrical double layer region at electrode-solution interface, requires a external power supply. Therefore, this study, we investigated MFC driven CDI (MFC-CDI) technology integrate with treatment and electricity production. Taking advantage potential requirement CDI, voltage generated from continuous flow could be used drive achieve removal electrolyte stable status. results indicated that among three connection types MFCs including single-, series-, parallel-configuration, parallel two resulted highest (0.63V) applied conductivity NaCl solution was more than 60%. electrosorption capacities under different concentrations 50, 100 150 mg L(-1) were 150, 346 295 μg g(-1), respectively. These suggest new MFC-CDI utilizes recovery wastewater, has great saving remove level dissolved aqueous solutions water processes.
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