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Research progress of novel bio-denitrification technology in deep wastewater treatment

Journal

FRONTIERS IN MICROBIOLOGY
Volume 14, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2023.1284369

Keywords

novel bio-denitrification technology; deep wastewater denitrification; coupling process; denitrification performance; low-carbon

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This paper introduces the advantages and applications of novel bio-denitrification technologies, which can effectively reduce nitrogen levels in wastewater with lower energy consumption and operational costs compared to traditional methods.
Excessive nitrogen emissions are a major contributor to water pollution, posing a threat not only to the environment but also to human health. Therefore, achieving deep denitrification of wastewater is of significant importance. Traditional biological denitrification methods have some drawbacks, including long processing times, substantial land requirements, high energy consumption, and high investment and operational costs. In contrast, the novel bio-denitrification technology reduces the traditional processing time and lowers operational and maintenance costs while improving denitrification efficiency. This technology falls within the category of environmentally friendly, low-energy deep denitrification methods. This paper introduces several innovative bio-denitrification technologies and their combinations, conducts a comparative analysis of their denitrification efficiency across various wastewater types, and concludes by outlining the future prospects for the development of these novel bio-denitrification technologies.

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