World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
34
Citations
3287
World Ranking
9295
National Ranking
23

Environmental Sciences

D-Index
38
Citations
4782
World Ranking
8705
National Ranking
24

Overview

George A. Ekama was affiliated with the University of Cape Town in South Africa. Their research primarily focused on Environmental Science and Engineering, contributing notably to several specialized subfields such as Industrial and Manufacturing Engineering, Water Science and Technology, Pollution, Building and Construction, and Food Science.

Their work addressed key topics including Wastewater Treatment and Nitrogen Removal, Anaerobic Digestion and Biogas Production, Membrane Separation Technologies, Wastewater Treatment and Reuse, Municipal Solid Waste Management, Food Waste Reduction and Sustainability, and Constructed Wetlands for Wastewater Treatment.

Ekama authored multiple papers, with significant publications appearing in the journal Water Research and Water SA. Among recent works were:

  • Integrated food waste management with wastewater treatment in Hong Kong: Transformation, energy balance and economic analysis, 2020, Water Research
  • Potential for co-disposal and treatment of food waste with sewage: A plant-wide steady-state model evaluation, 2020, Water Research
  • Ground food waste discharge to sewer enhances methane gas emission: A lab-scale investigation, 2020, Water Research
  • Identifying the mechanisms of sludge reduction in the sulfidogenic oxic-settling anaerobic (SOSA) process: Side-stream sulfidogenesis-intensified sludge decay and mainstream extended aeration, 2020, Water Research
  • A novel approach for rapidly measuring volatile fatty acids in anaerobic process, 2020, Water Research

Frequent co-authors in their research included Guanghao Chen, Feixiang Zan, Asad Iqbal, Xiaoming Liu, and Ji Dai. Collaborations with these colleagues contributed to advancements across multiple publications.

Best Publications

  • Biological Wastewater Treatment: Principles, Modelling and Design

    Mogens Henze;M.C.M. van Loosdrecht;G.A. Ekama;D. Brdjanovic

  • A GENERAL MODEL FOR THE ACTIVATED SLUDGE PROCESS

    Unknown

  • Anoxic growth of phosphate-accumulating organisms (PAOs) in biological nutrient removal activated sludge systems

    Zhi-rong Hu;M.C Wentzel;G.A Ekama

  • Integrated chemical–physical processes modelling—II. simulating aeration treatment of anaerobic digester supernatants

    E.V. Musvoto;M.C. Wentzel;G.A. Ekama

  • Greenhouse gases from wastewater treatment - A review of modelling tools.

    Giorgio Mannina;George Ekama;Donatella Caniani;Alida Cosenza

  • Processes and Modelling of Nitrification Denitrification Biological Excess Phosphorus Removal Systems – A Review

    M. C. Wentzel;G. A. Ekama;G. v. R. Marais

  • Large-scale demonstration of the sulfate reduction autotrophic denitrification nitrification integrated (SANI(®)) process in saline sewage treatment.

    Di Wu;George A. Ekama;Ho Kwong Chui;Bo Wang

  • Biological excess phosphorus removal - steady state process design.

    M. C. Wentzel;G. A. Ekama;P. L. Dold;G. V. R. Marais

  • Plant-wide modelling of phosphorus transformations in wastewater treatment systems: Impacts of control and operational strategies

    K Solon;X Flores-Alsina;C Kazadi Mbamba;D Ikumi

  • New framework for standardized notation in wastewater treatment modelling

    Lluis Corominas;L. Rieger;I. Takács;G. Ekama

  • Modelling multiple mineral precipitation in anaerobic digester liquor

    P van Rensburg;E.V Musvoto;M.C Wentzel;G.A Ekama

  • Secondary settling tanks : theory, modelling, design and operation

    Unknown

  • Considerations in the Process Design of Nutrient Removal Activated Sludge Processes

    G A Ekama;I P Siebritz;G V R Marais

  • A steady state model for anaerobic digestion of sewage sludges

    SW Sötemann;NE Ristow;MC Wentzel;GA Ekama

  • Coupling of sulfur(thiosulfate)-driven denitratation and anammox process to treat nitrate and ammonium contained wastewater.

    Yang-Fan Deng;George A. Ekama;Yan-Xiang Cui;Cong-Jian Tang

  • A 5 pH Point Titration Method for Determining the Carbonate and SCFA Weak Acid/Bases in Anaerobic Systems

    R. E. Moosbrugger;M. C. Wentzel;G. A. Ekama;G. v. R. Marais

  • Heterotroph anoxic yield in anoxic aerobic activated sludge systems treating municipal wastewater.

    A. Muller;M.C. Wentzel;R.E. Loewenthal;G.A. Ekama

  • Design and start-up of a high rate anaerobic membrane bioreactor for the treatment of a low pH, high strength, dissolved organic waste water

    P. J. Van Zyl;M. C. Wentzel;G. A. Ekama;K. J. Riedel

  • A new general methodology for incorporating physico-chemical transformations into multi-phase wastewater treatment process models.

    I. Lizarralde;T. Fernández-Arévalo;C. Brouckaert;P. Vanrolleghem

  • Towards a generalized physicochemical framework.

    Damien J. Batstone;Youri Amerlinck;George Ekama;Rajeev Goel

  • Biodegradability of activated sludge organics under anaerobic conditions.

    G.A. Ekama;S.W. Sötemann;M.C. Wentzel

  • DENITRIFICATION KINETICS IN BIOLOGICAL N AND P REMOVAL ACTIVATED SLUDGE SYSTEMS TREATING MUNICIPAL WASTEWATERS

    George A. Ekama;Mark C. Wentzel

  • Simultaneous nitrogen and phosphorus removal in the sulfur cycle-associated Enhanced Biological Phosphorus Removal (EBPR) process.

    Di Wu;George A. Ekama;Hai Guang Wang;Li Wei

  • Difficulties and developments in biological nutrient removal technology and modelling

    George A. Ekama;Mark C. Wentzel

  • SANI® process realizes sustainable saline sewage treatment: Steady state model-based evaluation of the pilot-scale trial of the process

    Hui Lu;George A. Ekama;Di Wu;Jiang Feng;Jiang Feng

  • 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

    Unknown

  • A Hypothesis for the Causes and Control of Anoxic-Aerobic (AA) Filament Bulking in Nutrient Removal Activated Sludge Systems

    T. G. Casey;M. C. Wentzel;G. A. Ekama;R. E. Loewenthal

  • Advances in sulfur conversion-associated enhanced biological phosphorus removal in sulfate-rich wastewater treatment: A review

    Gang Guo;Geortge A. Ekama;Yayi Wang;Ji Dai

  • Modelling biological nutrient removal activated sludge systems - a review.

    Zhi-rong Hu;M.C Wentzel;G.A Ekama

  • Steady-state model-based evaluation of sulfate reduction, autotrophic denitrification and nitrification integrated (SANI) process.

    Hui Lu;Jin Wang;Shen Li;Guang-Hao Chen

  • Principles in the design of single-sludge activated-sludge systems for biological removal of carbon, nitrogen, and phosphorus

    Mark C. Wentzel;George A. Ekama

Frequent Co-Authors

Guanghao Chen
Guanghao Chen Hong Kong University of Science and Technology
Giorgio Mannina
Giorgio Mannina University of Palermo
M. C. Wentzel
M. C. Wentzel University of Cape Town
Damir Brdjanovic
Damir Brdjanovic IHE Delft Institute for Water Education
Daniele Di Trapani
Daniele Di Trapani University of Palermo
Hallvard Ødegaard
Hallvard Ødegaard Norwegian University of Science and Technology
Wen-Tso Liu
Wen-Tso Liu University of Illinois at Urbana-Champaign
M.C.M. van Loosdrecht
M.C.M. van Loosdrecht Delft University of Technology
Mogens Henze
Mogens Henze Technical University of Denmark
Yves Comeau
Yves Comeau Polytechnique Montréal

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Best Scientists Citing George A. Ekama