Environmental Engineering and Water Technology Department, UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands; Faculty of Civil Engineering and Geosciences, Department of Water Management, Delft University of Technology, PO Box 5048, 2600 GA Delft, The Netherlands.
Environmental Engineering and Water Technology Department, UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands.
Bioresour Technol. 2015 Jun;186:252-260. doi: 10.1016/j.biortech.2015.03.073. Epub 2015 Mar 19.
A feasibility study was carried out to assess the cultivation of Anammox bacteria in lab-scale closed sponge-bed trickling filter (CSTF) reactors, namely: CSTF-1 at 20°C and CSTF-2 at 30°C. Stable conditions were reached from day 66 in CSTF-2 and from day 104 in CSTF-1. The early stability of CSTF-2 is attributable to the influence of temperature; nevertheless, by day 405, the nitrogen removal performed by CSTF-1 increased up to similar values of CSTF-2. The maximum total nitrogen removal efficiency was 82% in CSTF-1 and 84% in CSTF-2. After more than 400 days of operation, CSTF-1 and CSTF-2 were capable to attain a total nitrogen removal efficiency of 74±5% and 78±4% with a total nitrogen conversion rate of 1.52 and 1.60kg-N/m(sponge)(3)d, respectively. The proposed technology could be a suitable alternative for mainstream nitrogen removal in post-treatment units via the Anammox conversion pathway.
进行了一项可行性研究，以评估 Anammox 细菌在实验室规模封闭海绵床滴滤器（CSTF）反应器中的培养，即：20°C 下的 CSTF-1 和 30°C 下的 CSTF-2。CSTF-2 在第 66 天、CSTF-1 在第 104 天达到稳定状态。CSTF-2 的早期稳定性归因于温度的影响；然而，到第 405 天，CSTF-1 的氮去除率增加到与 CSTF-2 相似的值。CSTF-1 的最大总氮去除效率为 82%，CSTF-2 为 84%。经过 400 多天的运行，CSTF-1 和 CSTF-2 能够分别以 74±5%和 78±4%的总氮去除效率和 1.52 和 1.60kg-N/m（海绵）（3）d 的总氮转化率实现 74±5%和 78±4%的总氮去除效率。该技术可作为后处理单元主流氮去除的一种合适替代方法，通过 Anammox 转化途径。
