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洞察温室气体排放和去除性能:在无毒条件下对脱和anammox进行比较研究

Tan Tan^1,2, Yiming Yang^3,4, Xueying Wang^1,2

¹PowerChina Environmental Engineering Co. Ltd., Hangzhou, China.

Water environment research : a research publication of the Water Environment Federation

|July 13, 2025

概括

废水处理产生的温室气体 (包括甲和氧化物) 的排放量,通过使用一种与anammox (PD/A) 工艺相结合的新型部分脱法,减少了94%. 这种先进的方法增强了的去除,并减轻了N2O排放.

科学领域:

环境科学环境科学
微生物学微生物学
化学工程是化学工程的重要组成部分.

背景情况:

污水处理设施是温室气体 (GHG) 的重要来源,特别是甲 (CH4) 和氧化 (N2O).
脱,一个关键的废水过程,可以排放N2O,同时减少它,使直接测量N2O减少具有挑战性.

研究的目的:

开发和评估一种测试方法,用于监测废水处理过程中的温室气体排放.
为了比较部分脱加上anammox (PD/A) 与常规脱在减轻N2O和CH4排放方面的有效性.

主要方法:

开发了一种检测方法来监测温室气体排放,包括天然同位素分析来追踪N2O转化.
使用家庭和合成废水的PD/A和脱工艺之间的温室气体排放和除率的比较.

主要成果:

与家用污水的脱化相比,PD/A工艺实现了94%的N2O排放减少,具有类似的CH4排放因子 (0.06%).
在合成废水中,PD/A和脱法显示了NO3--N去除率的翻倍,PD/A实现了67%-78%的N2O和67%-83%的CH4排放减少.
同位素分析显示PD/A更高的15N位点偏好和N2O减少率,表明优越的N2O缓解潜力.

结论:

与传统的脱化相比,PD/A过程显著减少了废水处理产生的N2O排放量.
特定的脱和anammox细菌之间的协同作用增强了PD/A过程中的去除和N2O缓解.

关键词:

无氧氨氧化氧化无氧氨.脱化过程中的化.一种功能性微生物.它是天然同位素的同位素.去除除去除的方法

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