Leon Downing

626 total citations
35 papers, 487 citations indexed

About

Leon Downing is a scholar working on Pollution, Industrial and Manufacturing Engineering and Water Science and Technology. According to data from OpenAlex, Leon Downing has authored 35 papers receiving a total of 487 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Pollution, 10 papers in Industrial and Manufacturing Engineering and 9 papers in Water Science and Technology. Recurrent topics in Leon Downing's work include Wastewater Treatment and Nitrogen Removal (22 papers), Membrane Separation Technologies (8 papers) and Water Treatment and Disinfection (7 papers). Leon Downing is often cited by papers focused on Wastewater Treatment and Nitrogen Removal (22 papers), Membrane Separation Technologies (8 papers) and Water Treatment and Disinfection (7 papers). Leon Downing collaborates with scholars based in United States, Netherlands and Italy. Leon Downing's co-authors include Robert Nerenberg, Fabrizio Sabba, Gonzalo Pizarro, Kelly J. Martin, James Barnard, Teng Zeng, Glen T. Daigger, Kathleen Esposito, Kyle Bibby and George Wells and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Science of The Total Environment and Water Research.

In The Last Decade

Leon Downing

32 papers receiving 465 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Leon Downing United States 10 369 196 161 144 139 35 487
I. Zekker Estonia 11 445 1.2× 152 0.8× 152 0.9× 152 1.1× 163 1.2× 22 592
Maxime Rattier Australia 9 329 0.9× 141 0.7× 223 1.4× 96 0.7× 111 0.8× 13 476
Kozet Yapsaklı Türkiye 12 338 0.9× 188 1.0× 219 1.4× 100 0.7× 147 1.1× 20 505
Anni Mandel Estonia 9 436 1.2× 128 0.7× 146 0.9× 151 1.0× 167 1.2× 10 515
John W. Shanahan United States 7 364 1.0× 195 1.0× 150 0.9× 150 1.0× 100 0.7× 9 413
Chalermraj Wantawin Thailand 12 548 1.5× 153 0.8× 164 1.0× 123 0.9× 206 1.5× 22 641
Pongsak Noophan Thailand 15 373 1.0× 158 0.8× 148 0.9× 110 0.8× 171 1.2× 36 510
Abdul Mohammed Canada 14 401 1.1× 143 0.7× 122 0.8× 84 0.6× 262 1.9× 25 529
Liis Loorits Estonia 11 526 1.4× 161 0.8× 203 1.3× 180 1.3× 169 1.2× 13 606
Cheng-Shan Duan China 7 278 0.8× 143 0.7× 133 0.8× 93 0.6× 87 0.6× 7 374

Countries citing papers authored by Leon Downing

Since Specialization
Citations

This map shows the geographic impact of Leon Downing's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Leon Downing with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Leon Downing more than expected).

Fields of papers citing papers by Leon Downing

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leon Downing. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Leon Downing. The network helps show where Leon Downing may publish in the future.

Co-authorship network of co-authors of Leon Downing

This figure shows the co-authorship network connecting the top 25 collaborators of Leon Downing. A scholar is included among the top collaborators of Leon Downing based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Leon Downing. Leon Downing is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Downing, Leon, et al.. (2025). Making waves: Rethinking our mission for N2O emissions at WRRFs. Water Research X. 28. 100320–100320.
3.
Sabba, Fabrizio, et al.. (2024). PFAS in landfill leachate: Practical considerations for treatment and characterization. Journal of Hazardous Materials. 481. 136685–136685. 25 indexed citations
4.
Sabba, Fabrizio, et al.. (2024). Improving carbon management through maximizing hydrolysis and fermentation at water resource recovery facilities. SHILAP Revista de lepidopterología. 3. 1 indexed citations
5.
6.
Sabba, Fabrizio, Francesco Di Capua, James Barnard, et al.. (2022). Impact of operational strategies on a sidestream enhanced biological phosphorus removal (S2EBPR) reactor in a carbon limited wastewater plant. The Science of The Total Environment. 857(Pt 1). 159280–159280. 21 indexed citations
7.
Sabba, Fabrizio, et al.. (2022). Enhancing resource recovery via cranberry syrup waste at the Wisconsin Rapids WRRF: An experimental and modeling study. Journal of Environmental Management. 323. 116190–116190. 7 indexed citations
8.
Downing, Leon, et al.. (2020). First Full-Scale Activated Sludge Retrofit Using a Spirally-Wound MABR: Results and Model Evaluation. 1 indexed citations
9.
Downing, Leon, et al.. (2018). Complexity versus Simplicity: A Time and a Place for All Models. Proceedings of the Water Environment Federation. 2018(8). 4706–4722. 1 indexed citations
10.
Daigger, Glen T., et al.. (2018). Enhanced settling in activated sludge: design and operation considerations. Water Science & Technology. 78(2). 247–258. 9 indexed citations
11.
Montenegro‐Johnson, Thomas D., et al.. (2018). Lost Crystals– Impacts of Struvite Recovery Performance on Plant Capacity for Achieving Low-P Effluent.. Proceedings of the Water Environment Federation. 2018(5). 511–516. 1 indexed citations
12.
Downing, Leon, et al.. (2014). Floc or Granule? Evidence of Granulation in a Continuous Flow System. Proceedings of the Water Environment Federation. 2014(19). 2891–2897. 3 indexed citations
13.
Pizarro, Gonzalo, et al.. (2012). The Air-based Membrane Biofilm Reactor (MBfR) For Energy Efficient Wastewater Treatment. Proceedings of the Water Environment Federation. 2012(10). 5458–5485. 8 indexed citations
14.
Downing, Leon, et al.. (2010). Nitrogen Removal from Wastewater Using a Hybrid Membrane‐Biofilm Process: Pilot‐Scale Studies. Water Environment Research. 82(3). 195–201. 16 indexed citations
15.
Martin, Kelly J., Leon Downing, & Robert Nerenberg. (2009). Evidence of specialized bromate-reducing bacteria in a hollow fiber membrane biofilm reactor. Water Science & Technology. 59(10). 1969–1974. 10 indexed citations
16.
Downing, Leon & Robert Nerenberg. (2008). Effect of bulk liquid BOD concentration on activity and microbial community structure of a nitrifying, membrane-aerated biofilm. Applied Microbiology and Biotechnology. 81(1). 153–162. 38 indexed citations
17.
Downing, Leon & Robert Nerenberg. (2008). Effect of oxygen gradients on the activity and microbial community structure of a nitrifying, membrane‐aerated biofilm. Biotechnology and Bioengineering. 101(6). 1193–1204. 117 indexed citations
18.
Downing, Leon & Robert Nerenberg. (2008). Total nitrogen removal in a hybrid, membrane-aerated activated sludge process. Water Research. 42(14). 3697–3708. 86 indexed citations
19.
Downing, Leon, et al.. (2008). Pilot-Scale Testing of the Hybrid Membrane Biofilm Process (HMBP) for Total Nitrogen Removal from Municipal Wastewater. Proceedings of the Water Environment Federation. 2008(9). 6236–6244. 1 indexed citations
20.
Downing, Leon & Robert Nerenberg. (2007). Kinetics of microbial bromate reduction in a hydrogen‐oxidizing, denitrifying biofilm reactor. Biotechnology and Bioengineering. 98(3). 543–550. 40 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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