FANJun-hao,WANGXiao-jun,ZHOUSong-wei,et al.Application of Anaerobic Ammonia Oxidation in Liquid Ammonia Light Wastewater Treatment Project[J].China Water & Wastewater,2024,40(9):26-30.
厌氧氨氧化在液氨丝光高氨氮废水处理中的应用
- Title:
- Application of Anaerobic Ammonia Oxidation in Liquid Ammonia Light Wastewater Treatment Project
- Keywords:
- anaerobic ammonia oxidation; liquid ammonia light wastewater; high-concentration ammonia nitrogen; engineering application
- 摘要:
- 以纺织液氨丝光高氨氮废水为处理对象，探究厌氧氨氧化工艺对该废水的脱氮工程化应用情况。通过已挂膜填料和污泥连续投加的接种方式，厌氧氨氧化工程化系统仅耗时10 d便完成了启动；通过游离氨（FA）对亚硝酸盐氧化菌（NOB）的选择性抑制，实现了纺织液氨丝光高氨氮废水的稳定亚硝化，平均亚硝态氮积累率达到93%；根据测算，系统的氨氮去除负荷倍增时间仅为9 d，氨氮去除负荷高达0.942 kg/（m3·d）；通过核算药耗以及电耗可知，厌氧氨氧化工艺对纺织液氨丝光高氨氮废水的处理费用仅为15.6 元/kgNH4+-N。
- Abstract:
- This paper investigated the performance of anaerobic ammonia oxidation process for treating textile liquid ammonia light wastewater with high ammonia nitrogen in a full-scale project. The full-scale system was started in only 10 days by continuous inoculation of biofilm-coated filler and anaerobic ammonia oxidation sludge. Through selectively inhibiting nitrite oxidizing bacteria (NOB) with free ammonia (FA), the stable partial nitrification of textile liquid ammonia light wastewater was achieved, and the average nitrite nitrogen accumulation rate (NAR) was 93%. The doubling time of ammonia nitrogen removal load (ARR) of the system was estimated to be only 9 days, and the maximum ARR was 0.942 kg/(m3·d). According to the calculation of chemical and power consumptions, the operational cost of anaerobic ammonia oxidation process for treating textile liquid ammonia light wastewater was only 15.6 yuan/kgNH4+-N.
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