[1]王冰,高天一,王丽鑫.厌氧铁氨氧化的启动运行与脱氮机理[J].中国给水排水,2024,40(5):69-74.
　WANGBing,GAOTian-yi,WANGLi-xin.Start-up, Operation and Nitrogen Removal Mechanism of Feammox[J].China Water & Wastewater,2024,40(5):69-74.
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厌氧铁氨氧化的启动运行与脱氮机理

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第5期 页码: 69-74 栏目: 出版日期: 2024-03-01
Title:
Start-up, Operation and Nitrogen Removal Mechanism of Feammox
作者:
王冰， 高天一， 王丽鑫
（沈阳建筑大学 市政与环境工程学院，辽宁 沈阳 110000）
Author(s):
WANG　Bing， GAO　Tian-yi， WANG　Li-xin
（School of Municipal and Environmental Engineering， Shenyang Jianzhu University， Shenyang 110000， China）
关键词:
厌氧铁氨氧化;  脱氮机理;  启动运行;  同位素示踪
Keywords:
Feammox;  nitrogen removal mechanism;  star-up and operation;  isotopic tracing
摘要:
为解决传统生物脱氮工艺在污水处理过程中耗能大、成本高及含铁废水脱氮效果不佳的问题，在厌氧序批式反应器（ASBR）内通过梯度提升Fe3+浓度的方式诱导厌氧铁氨氧化（Feammox）反应的发生。对Feammox启动过程中氮浓度变化、铁价态变化及稳定运行中微生物群落等进行了分析；同时，设置不同对照组实验进行同位素示踪以推测Feammox的反应途径，并分析进水COD浓度对Feammox性能的影响。结果表明，经过为期90 d 的Feammox系统启动运行，氨氮去除率为53.03%；Feammox系统中氮元素的去除是由Feammox、厌氧氨氧化（Anammox）和硝酸盐依赖性铁氧化（NDFO）3种反应共同完成的；在Feammox系统稳定运行阶段，脱氮效果较好，实现了铁的循环，这为采用该技术处理高铁含氮废水提供了理论依据。
Abstract:
Feammox reaction was induced by stepwise increasing the Fe3+ concentration in an anaerobic sequencing batch reactor (ASBR), so as to solve the problems of high energy consumption, high cost and poor nitrogen removal performance of traditional biological nitrogen removal process for treating iron-containing wastewater. The characteristic including changes in nitrogen concentration and iron valence during Feammox start-up and microbial community during stable operation were analyzed. In addition, the control groups were set up for isotopic tracing to predict the reaction pathway of Feammox, and the influence of influent COD on the performance of Feammox was analyzed. The ammonia nitrogen removal rate was 53.03% after 90 days of operation. The removal of nitrogen in Feammox system was accomplished by three reactions: Feammox, Anammox and nitrate-dependent Fe(Ⅱ) oxidation (NDFO). In the stable operation stage of the system, Feammox demonstrated good nitrogen removal performance, and the iron cycle was realized. This study provides a theoretical basis for the treatment of wastewater containing high iron concentration and ammonia nitrogen.

相似文献/References:

[1]李啸川,闫昊,苑泉,等.城市污水双泥龄复合脱氮工艺的脱氮机理分析[J].中国给水排水,2023,39(9):10.
　LIXiao-chuan,YANHao,YUANQuan,et al.Analysis on Denitrification Mechanism of Double-SRT Hybrid Denitrification Process for Municipal Wastewater Treatment[J].China Water & Wastewater,2023,39(5):10.

更新日期/Last Update: 2024-03-01