Zhu Weiqiang, Zhang Peiyu, Yu Deshuang, Dong Huiyu, Li Jin
School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
Biodegradation. 2017 Jun;28(2-3):159-170. doi: 10.1007/s10532-017-9785-x. Epub 2017 Feb 9.
A sequencing batch reactor (SBR) was used to test the nitrogen removal performance of anaerobic ammonium oxidation (ANAMMOX) in presence of organic matter. Mesophilic operation (30 ± 0.5 °C) was performed with influent pH 7.5. The results showed, independent of organic matter species, ANAMMOX reaction was promoted when COD was lower than 80 mg/L. However, specific ANAMMOX activity decreased with increasing organic matter content. Ammonium removal efficiency decreased to 80% when COD of sodium succinate, sodium potassium tartrate, peptone and lactose were 192.5, 210, 225 and 325 mg/L, respectively. The stoichiometry ratio resulting from different OM differed largely and R could be as an indicator for OM inhibition. When COD concentration was 240 mg/L, the loss of SAA resulting from lactose, peptone, sodium potassium tartrate and sodium succinate were 28, 36, 50 and 55%, respectively. Sodium succinate had the highest inhibitory effect on SAA. When ANAMMOX process was used to treat wastewater containing OM, the modified Logistic model could be employed to predict the NRE.
采用序批式反应器（SBR）来测试在存在有机物的情况下厌氧氨氧化（ANAMMOX）的脱氮性能。在进水pH值为7.5的条件下进行中温运行（30±0.5℃）。结果表明，无论有机物种类如何，当化学需氧量（COD）低于80mg/L时，厌氧氨氧化反应均得到促进。然而，厌氧氨氧化的比活性随有机物含量的增加而降低。当琥珀酸钠、酒石酸钠钾、蛋白胨和乳糖的COD分别为192.5、210、225和325mg/L时，氨氮去除效率降至80%。不同有机物产生的化学计量比差异很大，R可作为有机物抑制作用的指标。当COD浓度为240mg/L时，乳糖、蛋白胨、酒石酸钠钾和琥珀酸钠导致的比氨氧化活性损失分别为28%、36%、50%和55%。琥珀酸钠对比氨氧化活性的抑制作用最强。当采用厌氧氨氧化工艺处理含有机物的废水时，修正的逻辑斯蒂模型可用于预测氮去除效率。
