A. Klapwijk

3.6k total citations · 1 hit paper
80 papers, 2.6k citations indexed

About

A. Klapwijk is a scholar working on Pollution, Industrial and Manufacturing Engineering and Water Science and Technology. According to data from OpenAlex, A. Klapwijk has authored 80 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Pollution, 22 papers in Industrial and Manufacturing Engineering and 15 papers in Water Science and Technology. Recurrent topics in A. Klapwijk's work include Wastewater Treatment and Nitrogen Removal (58 papers), Water Quality Monitoring and Analysis (11 papers) and Phosphorus and nutrient management (8 papers). A. Klapwijk is often cited by papers focused on Wastewater Treatment and Nitrogen Removal (58 papers), Water Quality Monitoring and Analysis (11 papers) and Phosphorus and nutrient management (8 papers). A. Klapwijk collaborates with scholars based in Netherlands, Russia and United States. A. Klapwijk's co-authors include G. Lettinga, Willem de Zeeuw, A.F.M. van Velsen, S.W. Hobma, Jan Peter van der Hoek, W.H. Rulkens, E.H. Eding, E.A. Huisman, J.A.J. Verreth and A. Kamstra and has published in prestigious journals such as Water Research, Bioresource Technology and Environmental Pollution.

In The Last Decade

A. Klapwijk

77 papers receiving 2.4k 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, A.F.M. van Velsen et al. Biotechnology and Bioengineering profile →

Peers

Countries citing papers authored by A. Klapwijk

Since Specialization

Citations

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

Fields of papers citing papers by A. Klapwijk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Klapwijk

This figure shows the co-authorship network connecting the top 25 collaborators of A. Klapwijk. A scholar is included among the top collaborators of A. Klapwijk 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 A. Klapwijk. A. Klapwijk 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	BioDeNOx: novel process for NOX removal from flue gases based on chemically enhanced biological NO and iron reduction 2026 ·Socio-Environmental Systems Modeling ·(unknown), A. Klapwijk, Piet N.L. Lens	0
2	Polyurethane rotating disc system for post-treatment of anaerobically pre-treated sewage 2010 ·Journal of Environmental Management ·Ahmed Tawfik, A. Klapwijk	20
3	Sequential anaerobic–aerobic treatment for domestic wastewater – A review 2010 ·Bioresource Technology ·Ghada Kassab, Maha Halalsheh, A. Klapwijk, M. Fayyad, (unknown)	112
4	Development of a test method to assess the sludge reduction potential of aquatic organisms in activated sludge 2008 ·Bioresource Technology ·(unknown), A. Klapwijk, H.J.H. Elissen, W.H. Rulkens	40
5	Potentials of using a rotating biological contactor (RBC) for post-treatment of anaerobically pre-treated domestic wastewater 2005 ·Biochemical Engineering Journal ·Ahmed Tawfik, A. Klapwijk, Fatma A. El‐Gohary, G. Lettinga	30
6	Sustainable Treatment and Reuse of Diluted Pig Manure Streams in Russia: From Laboratory Trials to Full-Scale Implementation 2003 ·Applied Biochemistry and Biotechnology ·S. V. Kalyuzhnyi, V. Sklyar, (unknown), (unknown), (unknown), (unknown), (unknown), А. Н. Ножевникова, A. Klapwijk	8
7	Mesophilic and thermophilic activated sludge post-treatment of paper mill process water 2002 ·Water Research ·(unknown), (unknown), A. Klapwijk, Henri Spanjers, J.B. van Lier	37
8	Phosphate Recycling in the Phosphorus Industry 2001 ·Environmental Technology ·Willem Schipper, A. Klapwijk, (unknown), W.H. Rulkens, (unknown), (unknown), (unknown)	82
9	Reduction of sludge production in an activated sludge system with the use of metazoa and other higher organisms 2000 ·Socio-Environmental Systems Modeling ·A. Klapwijk, (unknown), C.H. Ratsak, (unknown), H.J.H. Elissen	2
10	Feasibility of the Biofix-process for treatment of municipal wastewater 2000 ·Socio-Environmental Systems Modeling ·(unknown), A. Klapwijk, (unknown)	1
11	Research on physical-chemical pretreatment of wastewater in the Netherlands 1999 ·Socio-Environmental Systems Modeling ·A.F. van Nieuwenhuijzen, J.H.J.M. van der Graaf, J. de Koning, (unknown), W.H. Rulkens, A. Klapwijk	1
12	Control of intermittently aerated nitrogen removal plants by detection endpoints of nitrification and denitrification using respirometry only 1998 ·Water Research ·A. Klapwijk, (unknown), (unknown), (unknown)	29
13	Determining Influent Short-Term Biochemical Oxygen Demand by Combined Respirometry and Estimation 1993 ·Water Science & Technology ·Henri Spanjers, Gustaf Olsson, A. Klapwijk	19
14	Biological Early Warning Systems for Toxicity Based on Activated Sludge Respirometry 1993 ·Water Science & Technology ·Hardy Temmink, Peter A. Vanrolleghem, A. Klapwijk, Willy Verstraete	15
15	Validation of On-line Respiration Meter and its Applications by Computer Simulation 1992 ·Water Science & Technology ·(unknown), Henri Spanjers, A. Klapwijk	1
16	Removal of ammonia from waste gas with a rotating biological contactor. 1990 ·Socio-Environmental Systems Modeling ·(unknown), A. Rinzema, A. Klapwijk	4
17	Modelling and optimization of the combined ion exchange/biological denitrification process for nitrate removal from ground water. 1988 ·Jan Peter van der Hoek, (unknown), (unknown), A. Klapwijk	1
18	Combined ion exchange/biological denitrification for nitrate removal from ground water under different process conditions 1988 ·Water Research ·Jan Peter van der Hoek, (unknown), A. Klapwijk	62
19	Een continu respiratiemeter: nieuwe perspectieven voor het beheersen van het actiefslib - proces. 1986 ·Socio-Environmental Systems Modeling ·Henri Spanjers, A. Klapwijk	1
20	Use of the upflow sludge blanket (USB) reactor concept for biological wastewater treatment, especially for anaerobic treatment breakdown → 1980 ·Biotechnology and Bioengineering ·G. Lettinga, A.F.M. van Velsen, S.W. Hobma, Willem de Zeeuw, A. Klapwijk	965

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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