Research progress on biological nitrogen removal technology of nitrate-dependent anaerobic ferrous oxidation

doi:10.19965/j.cnki.iwt.2020-1225

Abstract

Abstract:

Biological nitrate removal is an economical and efficient method for the treatment of contaminated water. The nitrate-dependent anaerobic ferrous oxidation(NAFO) process has the characteristics of low cost and low energy consumption. It has become a new type of wastewater biological treatment technology with great development prospects. The discovery of NAFO, reaction mechanism, possible metabolic process and microorganism was systematically summarized. Operation parameters of NAFO, the application progress and the existing problems were discussed. Finally, the research directions of NAFO technology in the future were prospected.

Key words: nitrate-dependent anaerobic ferrous oxidation, biological nitrogen removal, metabolic mechanism, operation parameters

摘要：

生物法去除硝酸盐是一种经济高效的处置污染水体的手段。硝酸盐型厌氧亚铁氧化（NAFO）工艺因其具有低成本和低能耗的特点，已成为极具发展前景的新型污水生物脱氮技术。系统总结了NAFO的发现过程、反应原理、推测的代谢方式及微生物的研究进展。介绍了工艺运行参数及应用方面的进展，探讨了研究中存在的问题，并对未来的研究方向进行展望。

关键词: 硝酸盐型厌氧亚铁氧化, 生物脱氮, 代谢机理, 运行参数

CLC Number:

X703

Chao Shi,Junsheng Hu,Zicheng Fu,Yujia Wang. Research progress on biological nitrogen removal technology of nitrate-dependent anaerobic ferrous oxidation[J]. Industrial Water Treatment, 2021, 41(9): 50-55.

史超,胡俊生,傅梓铖,王宇佳. 硝酸盐型厌氧亚铁氧化生物脱氮工艺研究进展[J]. 工业水处理, 2021, 41(9): 50-55.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2020-1225

https://www.iwt.cn/EN/Y2021/V41/I9/50

Figures/Tables 6

References 39

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电对	电对电势/V
Fe²⁺/Fe³⁺（pH=2）	0.77
FeCO₃/Fe（OH）₃（pH=7）	0.20
NO₃^-/NO₂^-（pH=7）	0.43
NO₃^-/N₂（pH=7）	0.71
NO₃^-/NH₄⁺（pH=7）	0.36

电对	电对电势/V
Fe²⁺/Fe³⁺（pH=2）	0.77
FeCO₃/Fe（OH）₃（pH=7）	0.20
NO₃^-/NO₂^-（pH=7）	0.43
NO₃^-/N₂（pH=7）	0.71
NO₃^-/NH₄⁺（pH=7）	0.36

种属	来源	生长pH	生长温度/℃	参考文献
Paracoccus ferrooxidans strain BDN-1	实验室反硝化生物流化床反应器	5~8.5	10~45	〔15〕
Denitrifying bacterial strain ToN1	淡水底泥样品	7	15~28	〔7〕〔16〕
Pseudomonas stutzeri	土壤及海洋环境	7	15~28	〔7〕〔17〕
Pseudomonas sp. SZF15	水库沉积物	6.5	30	〔18〕
Paracoccus denitrificans	土壤	7	28	〔15〕〔17〕
Ferroglobus placidus	浅层火山海底热液	6~8.5	65~95	〔8〕
Iron-oxidizing bacteria（FeOB）strains F01，F02，F03	海底热液矿物表面	7	不高于30	〔19〕
Azospira bacterium TR1	环境修复现场	7	室温	〔20〕
Citrobacter freundii strain PXL1	污水处理厂厌氧活性污泥	7	30	〔21〕
Thiobacillus denitrificans	土壤、淡水和海洋沉积物	6.8~7.4	28~32	〔7〕〔22〕~〔24〕
Pseudogulbenkiania ferrooxidans strain 2002	淡水湖泊沉积物	6.75~8	15~40	〔25〕〔26〕
Candidatus Kuenina Stuttgartiensis	污水处理厂硝化阶段污泥	8	—	〔27〕
Candidatus Brocadia sinica	污水处理厂活性污泥	5.9~9.8（不低于5）	25~37	〔28〕

种属	来源	生长pH	生长温度/℃	参考文献
Paracoccus ferrooxidans strain BDN-1	实验室反硝化生物流化床反应器	5~8.5	10~45	〔15〕
Denitrifying bacterial strain ToN1	淡水底泥样品	7	15~28	〔7〕〔16〕
Pseudomonas stutzeri	土壤及海洋环境	7	15~28	〔7〕〔17〕
Pseudomonas sp. SZF15	水库沉积物	6.5	30	〔18〕
Paracoccus denitrificans	土壤	7	28	〔15〕〔17〕
Ferroglobus placidus	浅层火山海底热液	6~8.5	65~95	〔8〕
Iron-oxidizing bacteria（FeOB）strains F01，F02，F03	海底热液矿物表面	7	不高于30	〔19〕
Azospira bacterium TR1	环境修复现场	7	室温	〔20〕
Citrobacter freundii strain PXL1	污水处理厂厌氧活性污泥	7	30	〔21〕
Thiobacillus denitrificans	土壤、淡水和海洋沉积物	6.8~7.4	28~32	〔7〕〔22〕~〔24〕
Pseudogulbenkiania ferrooxidans strain 2002	淡水湖泊沉积物	6.75~8	15~40	〔25〕〔26〕
Candidatus Kuenina Stuttgartiensis	污水处理厂硝化阶段污泥	8	—	〔27〕
Candidatus Brocadia sinica	污水处理厂活性污泥	5.9~9.8（不低于5）	25~37	〔28〕

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