This map shows the geographic impact of M. C. Wentzel'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 M. C. Wentzel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites M. C. Wentzel more than expected).
This network shows the impact of papers produced by M. C. Wentzel. 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 M. C. Wentzel. The network helps show where M. C. Wentzel may publish in the future.
Co-authorship network of co-authors of M. C. Wentzel
This figure shows the co-authorship network connecting the top 25 collaborators of M. C. Wentzel.
A scholar is included among the top collaborators of M. C. Wentzel 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 M. C. Wentzel. M. C. Wentzel is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Wentzel, M. C., et al.. (2000). The use of simultaneous chemical precipitation in modified activated sludge systems exhibiting biological excess phosphate removal - Part 2: Method development for fractionation of phosphate compounds in activated sludge. Water SA. 26(4). 453–466.39 indexed citations
9.
Ekama, GA, et al.. (2000). Extension and application of the three-phase weak acid/base kinetic model to the aeration treatment of anaerobic digester liquors. Water SA. 26(4). 417–438.26 indexed citations
10.
Wentzel, M. C., et al.. (2000). The use of simultaneous chemical precipitation in modified activated sludge systems exhibiting biological excess phosphate removal. Part 4 : Experimental periods using ferric chloride : The use of simultaneous chemical precipitation in modified activated sludge systems exhibiting biological excess phosphate removal. Water SA. 26(4). 439–452.80 indexed citations
11.
Wentzel, M. C., et al.. (1999). Filamentous organism bulking in nutrient removal activated sludge systems Paper 9: Review of biochemistry of heterotrophic respiratory metabolism. Water SA. 25(4). 409–424.9 indexed citations
12.
Wentzel, M. C., et al.. (1997). Activated sludge mixed liquor heterotrophic active biomass. Water SA. 23(3). 239–248.12 indexed citations
13.
Ekama, GA, et al.. (1996). Filamentous organism bulking in nutrient removal activated sludge systems. Paper 5: Experimental examination of aerobic selectors in anoxic-aerobic systems. Water SA. 22(2). 139–146.5 indexed citations
14.
Wentzel, M. C., et al.. (1995). Batch test for measurement of readily biodegradable COD and active organism concentrations in municipal waste waters. Water SA. 21(2). 117–124.40 indexed citations
15.
Ekama, GA, et al.. (1995). Filamentous organism bulking in nutrient removal activated sludge systems. I: A historical overview of causes and control. Water SA. 21(3). 231–238.8 indexed citations
16.
Loewenthal, R. E., M. C. Wentzel, GA Ekama, & G. v. R. Marais. (1991). Mixed weak acid/base systems. II : Dosing estimation, aqueous phase. Water SA. 17(2). 107–122.10 indexed citations
17.
Loewenthal, R. E., et al.. (1991). A long-chain fatty acid, oleate, as sole substrate in upflow anaerobic sludge bed (UASB) reactor systems. Water SA. 17(1). 31–36.26 indexed citations
18.
Loewenthal, R. E., et al.. (1990). Growth of biopellets on glucose in upflow anaerobic sludge bed (UASB) systems.. Water SA. 16(3). 151–164.6 indexed citations
19.
Wentzel, M. C., George A. Ekama, Peter Dold, & G. v. R. Marais. (1990). Biological excess phosphorus removal - steady state process design.. Water SA. 16(1). 29–48.70 indexed citations
20.
Loewenthal, R. E., et al.. (1990). Effect of nitrogen limitation on pelletisation in upflow anaerobic sludge bed (UASB) systems.. Water SA. 16(3). 165–170.6 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.