作者: Sitong Liu , Harald Horn
DOI: 10.1016/J.BIORTECH.2011.12.131
关键词: Chemistry 、 Anammox 、 Nitrogen removal 、 Biomass 、 Geometry 、 Mass transfer 、 Biofilm
摘要: Abstract Three geometrically different biofilms were investigated for the start-up of deammonification reactor. The planar biofilm with 4 g/L biomass could achieve 0.47 kgN/(m 3 day) nitrogen removal, compared to only and 2 g/L needed cylindrical granular biofilms, respectively. Planar was significantly affected by Dissolved Oxygen (DO) changes, whereas effectively work in a wide range DO. maximum performance 0.49, 0.83 1.27 kgN/(m obtained planar, respectively, reflecting that most capable due its large surface area mass transfer. Cylindrical also effective as denitrifiers growth intimately related anaerobic zone. In addition, DO should be increased abruptly each shortened HRT. This investigation indicates profound influence geometry on process, which might serve input further experimental progress.