Understanding the influence of free nitrous acid on microalgal-bacterial consortium in wastewater treatment: A critical review

The biocidal effects of free nitrous acid (FNA) have found applications in multiple units in an urban wastewater system, including sewer networks, wastewater treatment processes, and sludge treatment processes. However, these applications are associated with chemical costs as both nitrite and acid are needed to produce FNA at the required levels. The recent discovery of novel acid-tolerant ammonia oxidizers offers the possibility to produce FNA from domestic wastewater, enabling the development of next-generation FNA-based technologies capable of achieving self-sustaining FNA production. In this study, we focus on the concept of in situ FNA generation facilitated by acid-tolerant ammonia oxidizers and highlight the multiple benefits it creates, after a brief review of the historical development of FNA-based technologies. We will discuss how wastewater systems can be made more energy-efficient and sustainable by leveraging the potential of acid-tolerant ammonia oxidizers.

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Removal of pathogenic indicator microorganisms during partial nitrification: the role of free nitrous acid

Xu,

Chen,

Tang

et al. 2023

Front. Environ. Sci. Eng.

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Understanding the influence of free nitrous acid on microalgal-bacterial consortium in wastewater treatment: A critical review

Cited by 12 publications

References 118 publications

Biofilm formation and EPS production enhances the bioremediation potential of Pseudomonas species: a novel study from eutrophic waters of Dal lake, Kashmir, India

Biofilm formation and EPS production enhances the bioremediation potential of Pseudomonas species: a novel study from eutrophic waters of Dal lake, Kashmir, India

New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Removal of pathogenic indicator microorganisms during partial nitrification: the role of free nitrous acid

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