Advances in the study of organic matter effects on ANAMMOX performance and its microorganisms

doi:10.19965/j.cnki.iwt.2022-1193

Abstract

Abstract:

The anaerobic ammonia oxidation（ANAMMOX） process is recognized by the industry as an efficient and low-consumption sustainable biological nitrogen removal technology. However，anaerobic ammonia oxidizing bacteria（AnAOB） have long growth period of generations and are sensitive to environmental factors. Organic matter，as the most common material in wastewater，has a more complex effect on the ANAMMOX process for nitrogen removal. It reviewed the effects of organic substance type，organic substance concentration on the nitrogen removal performance of the ANAMMOX process，functional microorganisms and its reasons. The smaller the molecular weight of the organic substance type and the simpler the structure were，the more significant effect on AnAOB was. Under low organic substance concentration conditions，AnAOB had a diverse metabolic pathway that utilized simple organics. Appropriate C/N promoted synergistic symbiosis between denitrifying bacteria and AnAOB，which could promote AnAOB growth to some extent. High concentrations of organics tended to cause denitrifying bacteria to dominate and compete with AnAOB for substrate，and could even alter the normal metabolic pathways of AnAOB. Alcohols had a strong irreversible inhibitory effect on AnAOB，and the inhibitory effect of antibiotics and phenols tended to be reversible. Candidatus Brocadia and Candidatus Jettenia had relatively good adaptability to organic substance. Understanding the effect of organics on AnAOB could provide important reference for process design and engineering applications of ANAMMOX.

Key words: anaerobic ammonia oxidizing bacteria, organic matter, metabolic pathways, microbial species

摘要：

厌氧氨氧化工艺（ANAMMOX）是高效低耗的可持续生物脱氮技术，但厌氧氨氧化菌（AnAOB）世代周期长、对环境因子敏感，有机物作为污水中最常见的物质，对ANAMMOX脱氮有较为复杂的影响。综述了有机物类型、有机物浓度对ANAMMOX脱氮性能及对功能微生物的影响并探讨了原因。有机物分子质量越小、结构越简单，对厌氧氨氧化细菌的影响越显著。在低有机物浓度条件下，AnAOB具有利用简单有机物的多样代谢途径。适当的C/N可促进反硝化菌与AnAOB协同共生，在一定程度上促进AnAOB生长。高浓度有机物易导致反硝化菌占优势，与AnAOB竞争基质，甚至会改变AnAOB正常的代谢途径。醇类对AnAOB有较强的不可逆抑制作用，抗生素和酚类的抑制效果往往是可逆的。Candidatus Brocadia和Candidatus Jettenia对有机物具有相对较好的适应性。理解有机物对AnAOB的影响，可为ANAMMOX的工艺设计和工程应用提供重要参考。

关键词: 厌氧氨氧化菌, 有机物, 代谢途径, 微生物种类

CLC Number:

X703

Zichen LUO, Xingran LI, Jianfang WANG. Advances in the study of organic matter effects on ANAMMOX performance and its microorganisms[J]. Industrial Water Treatment, 2024, 44(2): 39-47.

骆子琛, 李星燃, 王建芳. 有机物对ANAMMOX性能及微生物影响的研究进展[J]. 工业水处理, 2024, 44(2): 39-47.

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References 72

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浓度范围	碳源种类	反应器类型	COD/ （mg·L^-1）	微生物菌属种类及相对丰度变化	性能影响（去除率变化）
低浓度	乙酸盐^〔33〕	UASB	40	Candidatus Brocadia：+2%	NH₄ ⁺-N：+5%以上
	乙酸盐^〔18〕	SBR	82	Candidatus Kuenenia：+0.9% Candidatus Brocadia：+9.5% Candidatus Jettenia：+2.1%	无明显影响
	葡萄糖^〔22〕	UASB	50	Candidatus Brocadia：+10% Candidatus Kuenenia：-11%	TN：+0.8%
	葡萄糖^〔34〕	UASB	70	Candidatus Kuenenia：-7%	NH₄ ⁺-N：-32%
	丙酸盐^〔20〕	UASB	45	Candidatus Kuenenia：-9.06% Candidatus Brocadia：-2.5% Candidatus Jettenia：+3.81%	TN：+3.2%
高浓度	乙酸盐^〔35〕	EGSB	288	Candidatus Brocadia：+1.4% Candidatus Jettenia：-1.2%	NH₄ ⁺-N：-30.29%
	丙酸盐^〔35〕	EGSB	288	Candidatus Brocadia：-1% Candidatus Jettenia：维持在2%，并无明显影响	NH₄ ⁺-N：-43.41%
	葡萄糖^〔36〕	UBF	374.3	Candidatus Kuenenia：-20.58%	NH₄ ⁺-N：-88.2%

浓度范围	碳源种类	反应器类型	COD/ （mg·L^-1）	微生物菌属种类及相对丰度变化	性能影响（去除率变化）
低浓度	乙酸盐^〔33〕	UASB	40	Candidatus Brocadia：+2%	NH₄ ⁺-N：+5%以上
	乙酸盐^〔18〕	SBR	82	Candidatus Kuenenia：+0.9% Candidatus Brocadia：+9.5% Candidatus Jettenia：+2.1%	无明显影响
	葡萄糖^〔22〕	UASB	50	Candidatus Brocadia：+10% Candidatus Kuenenia：-11%	TN：+0.8%
	葡萄糖^〔34〕	UASB	70	Candidatus Kuenenia：-7%	NH₄ ⁺-N：-32%
	丙酸盐^〔20〕	UASB	45	Candidatus Kuenenia：-9.06% Candidatus Brocadia：-2.5% Candidatus Jettenia：+3.81%	TN：+3.2%
高浓度	乙酸盐^〔35〕	EGSB	288	Candidatus Brocadia：+1.4% Candidatus Jettenia：-1.2%	NH₄ ⁺-N：-30.29%
	丙酸盐^〔35〕	EGSB	288	Candidatus Brocadia：-1% Candidatus Jettenia：维持在2%，并无明显影响	NH₄ ⁺-N：-43.41%
	葡萄糖^〔36〕	UBF	374.3	Candidatus Kuenenia：-20.58%	NH₄ ⁺-N：-88.2%

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