Wastewater Treatment and Nitrogen Removal
Wastewater Treatment and Nitrogen Removal is a research topic within Pollution. Science Explorer counts 44k research works in it since 1950. 18.3% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the microbial nitrogen cycle in biological wastewater treatment systems, including the roles of nitrifying and denitrifying bacteria, anammox bacteria, and extracellular polymeric substances. It covers topics such as complete nitrification, partial nitritation/anammox, biological phosphorus removal, and nitrous oxide emission during wastewater treatment.
- Nitrogen-Cycling Network
- Anammox Bacteria
- Extracellular Polymeric Substances
- Nitrifying Bacteria
- Denitrifying Bacteria
- Biological Phosphorus Removal
- Activated Sludge
- Wastewater Treatment
- Nitrous Oxide Emission
- Anaerobic Ammonium Oxidation
- Research works
- 44k fractional, since 1950
- In the world top 10%
- 8k per year above
- Top-10% rate
- 18.3% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- +14% the tick is no change
Which countries lead Wastewater Treatment and Nitrogen Removal research?
By volume, China and the United States publish the most (3.6k and 459 works in 2022–2025).
By volume, 2022–2025
- 1 China 3.6k works
- 2 United States 459 works
- 3 India 312 works
- 4 Japan 168 works
- 5 Spain 131 works
- 6 South Korea 126 works
- 7 Germany 120 works
- 8 Canada 118 works
- 9 Australia 112 works
- 10 Brazil 101 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Wastewater Treatment and Nitrogen Removal research?
By volume in 2022–2025, Beijing University of Technology publishes the most Wastewater Treatment and Nitrogen Removal research, followed by Harbin Institute of Technology and Xi'an University of Architecture and Technology.
By volume, 2022–2025
- 1 Beijing University of TechnologyChina 165 works
- 2 Harbin Institute of TechnologyChina 112 works
- 3 Xi'an University of Architecture and TechnologyChina 84 works
- 4 Chinese Academy of SciencesChina 74 works
- 5 State Key Laboratory of Pollution Control and Resource ReuseChina 64 works
- 6 Tongji UniversityChina 51 works
- 7 South China University of TechnologyChina 49 works
- 8 Suzhou University of Science and TechnologyChina 49 works
- 9 Hohai UniversityChina 43 works
- 10 Chongqing UniversityChina 43 works
Who are the leading researchers in Wastewater Treatment and Nitrogen Removal?
The most-cited researchers publishing on Wastewater Treatment and Nitrogen Removal include Guangming Zeng and Jaap S. Sinninghe Damsté.
- 1 Guangming Zeng China 5.6k citations
- 2 Jaap S. Sinninghe Damsté Netherlands 2.4k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Wastewater Treatment and Nitrogen Removal research done?
The largest centres of Wastewater Treatment and Nitrogen Removal research in 2022–2025 are Beijing (China), Nanjing (China), Shanghai (China) and Guangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Shanghai and Sendai.
Largest cities, 2022–2025
Where it is the local speciality
- Shanghai21.6 works22×
- SendaiJP · 34.1 works6.4×
Location quotient: how much more of its research is in Wastewater Treatment and Nitrogen Removal than the world average.
Where is the best place to study Wastewater Treatment and Nitrogen Removal?
Among universities, judged by research, Harbin Institute of Technology, Hohai University and Xi'an University of Architecture and Technology score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Harbin Institute of TechnologyChina | 66.9 | 27.2% | 10.3× | 112 | -37.4% |
| 2 | Hohai UniversityChina | 64.9 | 29.0% | 11.8× | 43 | -0.0% |
| 3 | Xi'an University of Architecture and TechnologyChina | 63.7 | 24.6% | 41.6× | 84 | -10.3% |
| 4 | Beijing University of TechnologyChina | 63.3 | 19.0% | 35.0× | 165 | -21.6% |
| 5 | Suzhou University of Science and TechnologyChina | 63.0 | 16.8% | 34.1× | 49 | +122.2% |
| 6 | Beijing Forestry UniversityChina | 60.0 | 30.0% | 11.3× | 22 | -2.2% |
| 7 | Southwest UniversityChina | 55.9 | 23.9% | 5.8× | 21 | +193.7% |
| 8 | Ocean University of ChinaChina | 54.7 | 16.2% | 10.4× | 35 | +27.6% |
| 9 | University of Technology SydneyAustralia | 54.4 | 23.3% | 5.5× | 16 | +114.0% |
| 10 | Northwest A&F UniversityChina | 54.4 | 35.7% | 3.5× | 9 | +285.3% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Wastewater Treatment and Nitrogen Removal research growing?
Output in 2018–2022 was 14% higher than in 2013–2017, peaking in 2022. The fastest-growing topics are Wastewater Treatment and Nitrogen Removal.
The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.