G. Lettinga

28.2k total citations · 4 hit papers
392 papers, 21.4k citations indexed

About

G. Lettinga is a scholar working on Building and Construction, Pollution and Water Science and Technology. According to data from OpenAlex, G. Lettinga has authored 392 papers receiving a total of 21.4k indexed citations (citations by other indexed papers that have themselves been cited), including 191 papers in Building and Construction, 174 papers in Pollution and 94 papers in Water Science and Technology. Recurrent topics in G. Lettinga's work include Anaerobic Digestion and Biogas Production (191 papers), Wastewater Treatment and Nitrogen Removal (139 papers) and Membrane Separation Technologies (52 papers). G. Lettinga is often cited by papers focused on Anaerobic Digestion and Biogas Production (191 papers), Wastewater Treatment and Nitrogen Removal (139 papers) and Membrane Separation Technologies (52 papers). G. Lettinga collaborates with scholars based in Netherlands, Brazil and United States. G. Lettinga's co-authors include Jim A. Field, L.W. Hulshoff Pol, Piet N.L. Lens, G. Zeeman, J.B. van Lier, Alfons J. M. Stams, A. Rinzema, Albert J.H. Janssen, I.W. Koster and Brian Donlon and has published in prestigious journals such as Environmental Science & Technology, Applied and Environmental Microbiology and Water Research.

In The Last Decade

G. Lettinga

387 papers receiving 19.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Use of the upflow sludge blanket (USB) reactor concept for biological wastewater treatment, especially for anaerobic treatment

1980 965 citations G. Lettinga et al. profile →
Anaerobic sludge granulation

2004 524 citations L.W. Hulshoff Pol, G. Lettinga et al. Water Research profile →
Anaerobic digestion and wastewater treatment systems

1995 475 citations G. Lettinga profile →
Biotechnological Treatment of Sulfate-Rich Wastewaters

1998 429 citations Piet N.L. Lens, L.W. Hulshoff Pol et al. profile →

Peers

Countries citing papers authored by G. Lettinga

Since Specialization

Citations

This map shows the geographic impact of G. Lettinga'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 G. Lettinga with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G. Lettinga more than expected).

Fields of papers citing papers by G. Lettinga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G. Lettinga. 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 G. Lettinga. The network helps show where G. Lettinga may publish in the future.

Co-authorship network of co-authors of G. Lettinga

This figure shows the co-authorship network connecting the top 25 collaborators of G. Lettinga. A scholar is included among the top collaborators of G. Lettinga 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 G. Lettinga. G. Lettinga is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Physico-chemical factors affecting the E.coli removal in a rotating biological contactor (RBC) treating UASB effluent 2004 ·Water Research ·Ahmed Tawfik, Bram Klapwijk, (unknown), Fatma A. El‐Gohary, G. Lettinga	32
2	Anaerobic sewage treatment in a one-stage UASB reactor and a combined UASB-Digester system 2004 ·Water Research ·Nidal Mahmoud, G. Zeeman, Huub J. Gijzen, G. Lettinga	83
3	Sewage Characterisation as a Tool for the Application of Anaerobic Treatment in Palestine 2003 ·SSRN Electronic Journal ·Nidal Mahmoud, (unknown), Rashed Al-Sa’ed, G. Zeeman, Huub J. Gijzen, G. Lettinga	0
4	Use of Sulfate Reducing Cell Suspension Bioreactors for the Treatment of SO2 Rich Flue Gases 2003 ·Biodegradation ·Piet N.L. Lens, (unknown), G. Lettinga	21
5	Sewage characterisation as a tool for the application of anaerobic treatment in Palestine 2003 ·Environmental Pollution ·Nidal Mahmoud, (unknown), Rashed Al-Sa’ed, G. Zeeman, Huub J. Gijzen, G. Lettinga	38
6	Optimisation of sulphate reduction in a methanol-fed thermophilic bioreactor 2002 ·Water Research ·Jan Weijma, (unknown), (unknown), Alfons J. M. Stams, L.W. Hulshoff Pol, G. Lettinga	34
7	Low temperature pre-treatment of domestic sewage in an anaerobic hybrid or an anaerobic filter reactor 2002 ·Bioresource Technology ·T.A. Elmitwalli, V. Sklyar, G. Zeeman, G. Lettinga	74
8	Biotransformation and Biodegradation of Selected Nitroaromatics under Anaerobic Conditions 1999 ·Biotechnology Progress ·Elías Razo‐Flores, G. Lettinga, Jim A. Field	35
9	Anaerobic biodegradability of phthalic acid isomers and related compounds 1999 ·Biodegradation ·Robbert Kleerebezem, L.W. Hulshoff Pol, G. Lettinga	77
10	1H-NMR study of the diffusional properties of methanogenic aggregates 1998 ·Water Science & Technology ·Piet N.L. Lens, Frank J. Vergeldt, G. Lettinga, Henk Van As	7
11	Biotransformation and biodegradation ofN-substituted aromatics in methanogenic granular sludge 1997 ·FEMS Microbiology Reviews ·Elías Razo‐Flores, Brian Donlon, G. Lettinga, Jim A. Field	82
12	Anaerobic bioprocessing of organic wastes 1996 ·World Journal of Microbiology and Biotechnology ·Willy Verstraete, Dirk de Beer, Mar Peña, G. Lettinga, Piet N.L. Lens	57
13	Substrate competition between methanogens and acetogens during the degradation of methanol in UASB reactors 1995 ·Water Research ·Lourdinha Florêncio, Jim A. Field, G. Lettinga	64
14	Methanogenesis in granular sludge exposed to oxygen 1993 ·FEMS Microbiology Letters ·Mário T. Kato, Jim A. Field, G. Lettinga	41
15	Biotechnological sulphide removal on pilot scale. 1990 ·Cees J.N. Buisman, (unknown), G. Lettinga	1
16	Anaerobic treatment of vinasse wastewater in a modified UASB system. 1990 ·Hong Yang, G. Lettinga	1
17	Start-up of a UASB reactor on a carbohydrate waste. 1988 ·Socio-Environmental Systems Modeling ·Reyes Sierra‐Álvarez, L.W. Hulshoff Pol, G. Lettinga	1
18	Granular anaerobic sludge; microbiology and technology. Proceedings of the GASMAT workshop Lunteren, The Netherlands, 25-27 October 1987. 1988 ·Socio-Environmental Systems Modeling ·G. Lettinga, Alexander J. B. Zehnder, J.T.C. Grotenhuis, L.W. Hulshoff Pol	21
19	Anaerobic treatment of raw sewage at lower temperatures 1983 ·Socio-Environmental Systems Modeling ·P.C. Grin, R.E. Roersma, G. Lettinga	15
20	Radioactivity and water supplies 1972 ·Research Repository (Delft University of Technology) ·G. Lettinga	7

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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