Pous Narcís, Korth Benjamin, Osset-Álvarez Miguel, Balaguer Maria Dolors, Harnisch Falk, Puig Sebastià
Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurèlia Capmany, 69, E-17003 Girona, Spain.
Department of Environmental Microbiology, Helmholtz-Centre for Environmental Research - UFZ, Permoser Str. 15, 04318 Leipzig, Germany.
Bioresour Technol. 2021 Jan;319:124221. doi: 10.1016/j.biortech.2020.124221. Epub 2020 Oct 10.
This work aimed to study the electrification of biotrickling filters by means of Microbial electrochemical technologies (MET) to develop an easy-to-assemble and easy-to-use MET for nitrogen removal without external aeration nor addition of chemicals. Four different designs were tested. The highest ammonium and nitrate removal rates (94 gN·m·d and 43 gN·m·d, respectively) were reached by combining an aerobic zone with an electrified anoxic zone. The standards of effluent quality suitable for hydroponics were met at low energy cost (8.3 × 10 kWh·gN). Electrified biotrickling filters are a promising alternative for aquaponics and a potential treatment for organic carbon-deficient ammonium-contaminated waters.
这项工作旨在通过微生物电化学技术（MET）研究生物滴滤池的电气化，以开发一种易于组装和使用的MET，用于在不进行外部曝气和不添加化学物质的情况下进行脱氮。测试了四种不同的设计。通过将好氧区与带电缺氧区相结合，实现了最高的铵和硝酸盐去除率（分别为94 gN·m·d和43 gN·m·d）。在低能源成本（8.3×10 kWh·gN）下达到了适合水培的出水水质标准。带电生物滴滤池是水产养殖的一种有前途的替代方案，也是处理有机碳缺乏的铵污染水的一种潜在方法。
