SAD工艺在厌氧氨氧化不同运行阶段的启动

发布时间：2017-12-28 18:46

本文关键词：SAD工艺在厌氧氨氧化不同运行阶段的启动　出处：《中国环境科学》2017年05期 　论文类型：期刊论文

【摘要】：利用SBR反应器在厌氧氨氧化启动过程中脱氮性能达到不同氨氮去除负荷(ANR)时启动厌氧氨氧化耦合反硝化(SAD)工艺处理生活污水.分析对反应器内3氮变化和功能菌活性变化.结果表明,在厌氧氨氧化的ANR达到0.27~0.40kg/(m~3×d)时,启动SAD工艺,反应器可处理COD为100mg/L以下的生活污水;在厌氧氨氧化的氨氮去除去除负荷(ANR)达到0.65~0.85kg/(m~3×d)时,反应器可高效处理COD为100~200mg/L的生活污水,而在ANR达到0.85kg/(m~3×d)时,反应器SAD工艺可稳定处理COD为100~200mg/L的生活污水,反应器内ANAMMOX菌的活性与异养菌活性及反硝化菌活性保持在合理范围内即可稳定启动SAD工艺,缩短SBR反应器的周期,可加速反应器ANAMMOX菌活性的提高,降低异养菌和反硝化菌活性的提高.周期测试分析,表明,控制C/N比和HRT可实现厌氧氨氧化耦合部分反硝化脱氮.
[Abstract]:The performance of denitrification in anaerobic ammonia oxidation starting process to achieve different ammonia nitrogen removal load using SBR reactor (ANR) during the start-up of anammox denitrification coupling (SAD) process for treatment of domestic sewage. The analysis of reactor 3 nitrogen changes and functional bacteria activity. The results showed that reached 0.27~0.40kg/ in the anaerobic ammonia oxidation (ANR m~3 * d), start the SAD process, the reactor can be treated as COD 100mg/L following sewage; removal of ammonia nitrogen removal load in anaerobic ammonia oxidation (ANR) to 0.65~0.85kg/ (m~3 * d), the reactor can be COD 100~200mg/L for efficient processing of sewage, and reached 0.85kg/ in ANR (m~3 * D), the reactor SAD process can be stabilized to COD 100~200mg/L sewage, activated and heterotrophic bacteria and denitrifying bacteria activity of ANAMMOX bacteria in the reactor can be maintained in a reasonable range and stable start SAD process, shorten the cycle of the SBR reactor, can Accelerating the activity of ANAMMOX bacteria increased the activity of heterotrophic bacteria and denitrifying bacteria. Periodic test analysis showed that C/N and HRT could achieve partial nitrification and denitrification by anaerobic ammonium oxidation.
【作者单位】：北京工业大学水质科学与水环境恢复工程北京市重点实验室;哈尔滨工业大学城市水资源与水环境国家重点实验室;
【基金】：北京市青年拔尖团队项目(2014000026833TD02)
【分类号】：X703.1
【正文快照】： 厌氧氨氧化工艺具有无需外加碳源、节约能源和减少污泥产量和二氧化碳排放量等优点[1].反应器内厌氧氨氧化菌以2NO N--为电子受体,以4NH N(10)-为电子受体,反应生成N2并释放,达到脱氮目的.理论上厌氧氨氧化工艺只能达到89%的总氮去除率,产生11%左右的3NO N--.这也使得单独的厌

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