有机碳源作用下厌氧氨氧化系统的脱氮效能

发布时间：2018-02-13 18:36

本文关键词： 厌氧氨氧化有机碳源脱氮效能最大比厌氧氨氧化速率化学计量比　出处：《环境科学》2017年02期 　论文类型：期刊论文

【摘要】：采用ASBR厌氧氨氧化反应器,研究不同有机碳源及浓度变化对厌氧氨氧化菌活性与反应器脱氮性能的影响.实验结果表明,当葡萄糖浓度为200 mg·L~(-1)时,厌氧氨氧化活性下降84.2%;当乙酸钠浓度低于120 mg·L~(-1)时不但不会抑制厌氧氨氧化菌的活性,还在一定程度上促进了厌氧氨氧化反应的进行;蔗糖对厌氧氨氧化的促进作用与乙酸钠类似,当浓度为80mg·L~(-1)时,最大比厌氧氨氧化速率提高了25.0%;柠檬酸三钠对厌氧氨氧化反应几乎没有影响,当有机物浓度为80 mg·L~(-1)时,最大比厌氧氨氧化速率达到最大.有机碳源对厌氧氨氧化的促进作用由大到小为:蔗糖乙酸钠柠檬酸三钠葡萄糖.有机碳源作用下,厌氧氨氧化反应可协同反硝化反应去除系统中的硝态氮,提高了系统总氮的去除率.
[Abstract]:The effects of different organic carbon sources and concentrations on the activity of anaerobic ammoxidation bacteria and the denitrification performance of the reactor were studied in ASBR anaerobic ammonia oxidation reactor. The experimental results showed that when the concentration of glucose was 200mg 路L ~ (-1), When the concentration of sodium acetate was lower than 120 mg 路L ~ (-1), the activity of anaerobic ammonia oxidizing bacteria was not inhibited, but the anaerobic ammonia oxidation reaction was promoted to some extent, while the activity of anaerobic ammonia oxidation decreased by 84.2%, and when the concentration of sodium acetate was lower than 120 mg 路L ~ (-1), the activity of anaerobic ammonia oxidizing bacteria was not inhibited. The promoting effect of sucrose on anaerobic ammoxidation was similar to that of sodium acetate. When the concentration of sucrose was 80 mg 路L ~ (-1), the maximum anammoxidation rate was increased 25.0%, while trisodium citrate had little effect on the anaerobic ammonia oxidation, when the concentration of organic matter was 80mg 路L ~ (-1), The maximum specific anaerobic ammoxidation rate reached the maximum. The promoting effect of organic carbon source on anaerobic ammoxidation was as follows: sucrose acetate sodium citrate trisodium glucose. Anaerobic ammoxidation can remove nitrate nitrogen from the system in coordination with denitrification and improve the removal rate of total nitrogen in the system.
【作者单位】：青岛大学环境科学与工程学院;
【基金】：国家自然科学基金项目(51278258,51478229) 山东省自然科学基金项目(BS2015HZ007) 山东省高等学校科技计划项目(J15LC61)
【分类号】：X703.1

【相似文献】