Guan Yong-Jie, Yu De-Shuang, Li Jin, Qi Pan-Qing, Wei Si-Jia
School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
Huan Jing Ke Xue. 2017 Feb 8;38(2):654-664. doi: 10.13227/j.hjkx.201603179.
Anaerobic ammonium oxidation (ANAMMOX) has been regarded as an efficient process to treat high-strength wastewater without organic carbon source. To investigate the nitrogen removal performance of ANAMMOX in the presence of organic carbon source can broaden its application in organic wastewater treatment. In this work, an anaerobic sequencing batch reactor (ASBR) was used to study the effect of organic carbon source on ANAMMOX process. The experimental results indicated that the activity of anaerobic ammonia oxidizing bacteria (AAOB) decreased by 84.2% when 200 mg·L COD of glucose was added. When sodium acetate was added, the activity of AAOB was affected little. Besides, it even promoted the activity with COD less than 120 mg·L. The effect of sucrose on ANAMMOX process was similar to that of sodium acetate and the maximum specific ANAMMOX activity (SAA) increased by 25.0% with 80 mg·L COD. When citric acid was added, the maximum SAA peaked with 80 mg·L COD. The order of ANAMMOX promotion resulted from organic carbon source was sucrose, sodium acetate, citric acid and glucose. With addition of organic carbon source, nitrate could also be removed through the synergy of ANAMMOX and denitrification, and the total nitrogen removal efficiency increased.
厌氧氨氧化（ANAMMOX）被认为是一种处理无有机碳源的高浓度废水的有效工艺。研究厌氧氨氧化在有机碳源存在下的脱氮性能可以拓宽其在有机废水处理中的应用。在本研究中，采用厌氧序批式反应器（ASBR）来研究有机碳源对厌氧氨氧化工艺的影响。实验结果表明，添加200mg·L COD的葡萄糖时，厌氧氨氧化菌（AAOB）的活性下降了84.2%。添加乙酸钠时，AAOB的活性受影响较小。此外，当COD小于120mg·L时，它甚至促进了活性。蔗糖对厌氧氨氧化工艺的影响与乙酸钠相似，80mg·L COD时最大比厌氧氨氧化活性（SAA）提高了25.0%。添加柠檬酸时，最大SAA在80mg·L COD时达到峰值。有机碳源对厌氧氨氧化促进作用的顺序为蔗糖、乙酸钠、柠檬酸和葡萄糖。随着有机碳源的添加，硝酸盐也可通过厌氧氨氧化与反硝化的协同作用被去除，总氮去除效率提高。
