SAD工艺在厌氧氨氧化不同运行阶段的启动

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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/（m³·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/（m³·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/（m³·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.

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	李冬
	杨巧云
	曾辉平
	张杰

关键词 ：厌氧氨氧化耦合反硝化, 动力学活性, 启动, 氨氮去除负荷, 生活污水

Abstract：

In order to start up astable simultaneous anammox and heterotrophic denitrification process to treat domestic sewage, the experiment was carried out at different ammonia nitrogen removal of the load (ANR). During the operation period, the variation of ammonia nitrogen (NH₄⁺-N)nitrite nitrogen (NO₂^--N) and nitrate nitrogen (NO₃^--N) and dynamics activities of functional microbes were investigated to elaboratemain factors for the SAD process. The results showed that the reactor could treat domestic wastewater containing 100~150mg/L COD when the ANR was during 0.27~0.40kg/(μ³·d) and it could treat domestic wastewater containing 100~200mg/L COD stably when the ANR was 0.85kg/(m³·d) The reactor could start up stable SAD process if the ratioof ananmmox bacteria dynamics activity (μ_NH₄⁺-N)with heterotrophicbacteria (μ_COD)and denitrificationbacteria (μ_NH₃^--N) was within reasonable limits.The anammox bacteria activity was increased ,meanwhile the heterotrophicbacteria and denitrificationbacteriaactivity were decreased when the hydraulic retention time (HRT) was reduced. According to the cycle experiments,the simultaneous anammox and partial denitrification process

Key words： simultaneous anammox and denitrification process dynamics activities start-up Ammonia nitrogen removal load domestic wastewater

收稿日期: 2016-10-06

PACS:

X703.1

基金资助:

北京市青年拔尖团队项目（2014000026833TD02）

通讯作者: 李冬,教授,lidong2006@bjut.edu.cn E-mail: lidong2006@bjut.edu.cn

作者简介: 李冬(1976-),女,辽宁丹东人,教授,博士,主要从事水质科学与水环境恢复关键技术研究.发表论文100余篇.

引用本文:

李冬, 杨巧云, 曾辉平, 张杰. SAD工艺在厌氧氨氧化不同运行阶段的启动[J]. 中国环境科学, 2017, 37(5): 1775-1782. LI Dong, YANG Qiao-yun, ZENG Hui-ping, ZHANG Jie. The startup of simultaneous anammox and denitrification process atdifferent operational phases of anammox. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(5): 1775-1782.

链接本文:

http://manu36.magtech.com.cn/Jweb_zghjkx/CN/ 或 http://manu36.magtech.com.cn/Jweb_zghjkx/CN/Y2017/V37/I5/1775

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