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The Relationship between Gene Activity and Nitrous Oxide Production during Nitrification in Activated Sludge Systems
Abstract
Nitrite is an important factor which inhibits the first stage of the nitrification, the effect is stronger with the decrease of the DO concentrations. NO2- presence at concentration above 15 mg N – NO2 in the aeration tanks stimulates N2O production regardless of the DO concentration. The significant nirS gene induction, observed especially during the experiments with the nitrite addition indicates that N2O production is basically supported by heterotrophic denitrification. The obtained results revealed that the gene activity control may be a useful tool for recognizing the different biochemical pathways of N2O production and developing strategies for N2O control in bioreactors.
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Keywords
Details
- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Title of issue:
- Frontiers in Wastewater Treatment and Modelling strony 470 - 475
- Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Kowal P., Mąkinia J.: The Relationship between Gene Activity and Nitrous Oxide Production during Nitrification in Activated Sludge Systems// / ed. Giorgio Mannina Szwajcaria: Springer, 2017, s.470-475
- DOI:
- Digital Object Identifier (open in new tab) 10,1007/978-3-31958421-8_74
- Verified by:
- Gdańsk University of Technology
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