Application of a collaborative mixed culture with freshwater- and seawater-anammox bacteria to nitrogen removal technology

点击翻译按钮获取中文摘要

We have successfully established a collaborative mixed culture with freshwater and seawater anammox bacteria, and revealed nitrogen removal property and bacterial community of it. The biomasses of marine anammox bacterial culture and fresh-water anammox bacterial culture were inoculated into a packed bed reactor and continuously cultured under the three kinds of condition of marine, fresh-water, intermediate of marine and fresh-water. A typical anammox reaction was confirmed within 5 days under all the conditions, and stable nitrogen removal performance at 0.1 g/L/d of nitrogen removal rate. The anammox biomass cultured in a continuous stirred-tank reactor under the intermediate condition was used for bacterial community analysis. The abundance ratio of marine- and fresh-water- anammox bacteria was 30:1, suggesting the change of anammox bacterial abundance.