State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
J Environ Sci (China). 2010;22(11):1683-8. doi: 10.1016/s1001-0742(09)60306-5.
The effect of high-strength ammonia nitrogen acclimation on sludge activity in sequencing batch reactor (SBR) was investigated. Two batch experiments, RUN1 and RUN2, were conducted with the influent ammonia nitrogen concentrations 60 and 500 mg/L, respectively. The sludges inoculated from RUN1 and RUN2 were used to treat a series of influent with ammonia nitrogen concentrations of 59, 232, 368, 604 and 1152 mg/L. It is found that the activated sludge acclimated to higher ammonia nitrogen concentrations revealed higher COD and NH4(+)-N removal efficiencies, and slower DHA decrease. The results confirmed that the activities of the bacteria in activated sludge in SBR were inhibited by high-strength ammonia nitrogen, whereas the activated sludge acclimated to high-strength ammonia nitrogen showed substantial resistance to inhibition by influents containing high levels of ammonia nitrogen.
研究了高强度氨氮驯化对序批式反应器（SBR）中污泥活性的影响。进行了两个批实验，RUN1 和 RUN2，进水氨氮浓度分别为 60 和 500 mg/L。从 RUN1 和 RUN2 接种的污泥用于处理一系列进水氨氮浓度为 59、232、368、604 和 1152 mg/L 的进水。结果发现，适应较高氨氮浓度的活性污泥表现出更高的 COD 和 NH4(+)-N 去除效率，以及较慢的 DHA 下降。结果证实，SBR 中活性污泥中的细菌活性受到高强度氨氮的抑制，而适应高强度氨氮的活性污泥对含有高水平氨氮的进水具有很强的抗抑制能力。
