Related Experiment Video
Updated: Aug 20, 2025
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Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
Published on: December 6, 2018
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Systematic review: External carbon source for biological denitrification for wastewater
Sanjrani Manzoor Ahmed1,2, Saeeda Rind3, Keenjhar Rani4
1College of Environmental Science and Engineering, Donghua University, Shanghai, China.
Biotechnology and Bioengineering
|November 24, 2022
Summary
Biological denitrification, using external carbon sources, is a cost-effective solution for nitrogen mitigation in wastewater. Textile waste is recommended as a sustainable carbon source for this crucial environmental process.
Area of Science:
- Environmental Science
- Environmental Engineering
- Water Treatment
Background:
- Nitrogen mitigation is a critical global environmental challenge.
- Biological denitrification in wetlands is a recommended wastewater treatment method.
- The efficiency of denitrification relies heavily on the external carbon source.
Purpose of the Study:
- To review and evaluate biological denitrification processes.
- To identify and assess cost-effective external carbon sources for denitrification.
- To highlight the benefits of biological denitrification in nitrogen mitigation.
Main Methods:
- Systematic literature review of scientific databases (Science Direct, Web of Science).
- Analysis of 625 review articles and 3084 research articles published between 2015 and 2021.
- In-depth literature survey with defined exclusion criteria.
Main Results:
- Both nitrification and denitrification are vital for biological wastewater treatment.
- The carbon source significantly enhances and boosts the denitrification process.
- Biological denitrification with external carbon sources is confirmed as cost-effective.
Conclusions:
- Biological denitrification with external carbon addition is the optimal strategy for nitrogen mitigation.
- External carbon sources are essential boosters for efficient denitrification.
- Textile waste is identified as a promising source for carbon recovery in wastewater treatment.
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