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Updated: Jan 17, 2026

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

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基于反应速率的粒状污泥部分化系统的自化化系统的建造

Lingcong Zeng¹, Jinqiang Guan¹, Shengping Wen¹

¹School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, 341000, People's Republic of China.

Environmental technology

|September 18, 2025

概括

这项研究迅速确定了使用自化化颗粒污泥 (ANGS) 处理稀土采矿废水的部分化. ANGS表现出高活性和抑制酸盐氧化细菌,为氨去除提供了一种高效,绿色的解决方案.

科学领域:

环境科学环境科学
环境工程环境工程
微生物学微生物学

背景情况:

离子稀土采矿废水由于酸性pH值,低有机含量和高氨的气而带来了挑战.
对于这种特定的废水类型,需要有效的绿色处理策略.

研究的目的:

开发一种快速的战略,使用自性化颗粒污泥 (ANGS) 建立部分化.
评估ANGS在处理离子稀土采矿废水中的有效性.
在这个过程中调查微生物社区的动态.

主要方法:

使用了一种配序批量反应器 (SBR),注射了储存的ANGS.
控制空气强度,以调节氨氧化率和酸盐氧化率.
监控的亚酸盐积累率 (NAR),负载率 (NLR) 和微生物群落组成.

主要成果:

ANGS在8天内迅速恢复活动,达到>90%的NAR.
在各种NLR中成功实现了部分化,最佳NO2-N/NH4+-N比率约为1.32.
氨氧化细菌 (AOB) 保持活跃,而酸盐氧化细菌 (NOB) 被抑制.
主导的微生物群落包括Nitrosomonas,Thauera和OLB8,在AOB中增强了amoC和hao基因丰度.

结论:

快速建立部分化是可行的,使用ANGS用于稀土采矿废水.
该过程是高效和成本有效的,转换成本根据NLR而有所不同.
微生物社区分析强调了AOB在治疗过程中的关键作用.

关键词:

离子稀土采矿废水废水离子稀土采矿废水有氧颗粒污泥有氧颗粒污泥负载率是指负载率.部分化部分化反应速度反应速度的反应速度.

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