Zhang Shu-Jun, Ma Fu-Guo, Cao Xiang-Sheng, Gan Yi-Ping, Meng Xue-Zheng, Zhou Jun, Wang Hong-Chen, Peng Yong-Zhen
Beijing Drainage Group Company Limited, Beijing 100038, China.
Huan Jing Ke Xue. 2009 Jun 15;30(6):1695-700.
The experimental system consisted of anoxic filter and aerobic suspended carrier biofilm reactor. The partial nitrification was achieved and maintained stably in the aerobic reactor under normal temperature (15-29 degrees C) and high DO (6-9 mg/L). The nitritation with 70%-80% nitrite accumulation efficiency was obtained when FA concentration was in the range of 1.0-10.3 mg/L by controlling influent ammonia loading rate (ALR), ratio of alkalinity and ammonia and HRT in the aerobic reactor. The effluent nitrite/ammonia ratio was about 1.25 when the average influent ammonia, influent ALR and influent ratio of alkalinity and ammonia were 315.80 mg/L, 0.43 kg/(m3 x d) and 5.25, respectively. So the effluent of partial nitrification process provided the influent substrate demand for the following ANAMMOX process. The integrative analysis indicated that the proper FA concentration was the main factor achieving the partial nitrification. The study developed a novel partial nitrification technology adapt to water characteristics of digested sludge liquor.
实验系统由缺氧滤池和好氧悬浮载体生物膜反应器组成。在常温（15 - 29摄氏度）和高溶解氧（6 - 9毫克/升）条件下，好氧反应器实现并稳定维持了部分硝化作用。通过控制好氧反应器的进水氨负荷率（ALR）、碱度与氨的比例以及水力停留时间（HRT），当游离氨（FA）浓度在1.0 - 10.3毫克/升范围内时，亚硝酸盐积累效率达到70% - 80%，实现了亚硝化作用。当进水氨平均浓度、进水氨负荷率和进水碱度与氨的比例分别为315.80毫克/升、0.43千克/（立方米·天）和5.25时，出水亚硝酸盐/氨的比例约为1.25。因此，部分硝化过程的出水为后续厌氧氨氧化过程提供了进水底物需求。综合分析表明，合适的FA浓度是实现部分硝化的主要因素。该研究开发了一种适应消化污泥液水质特性的新型部分硝化技术。
