Prof.dr. G.J. (Gertjan) Medema
Prof.dr. G.J. (Gertjan) Medema
Profiel
Prof. Gertjan Medema (M) is principal microbiologist at KWR since 1996. He is part-time chair on Water & Health at Delft University of Technology (Sanitary Engineering) since 2009 and was Visiting Hannah Professor on Water & Health at Michigan State University from 2018 to 2022.
His research focuses on understanding the transmission of infectious diseases and antimicrobial resistance via water systems, and how this can be prevented. This includes experimental, field and modelling research: the development of methods for detection and removal of pathogens such as viruses, bacteria, parasites and antimicrobial resistance in water, conducting Quantitative Microbial Risk Assessment, fate and transport and exposure modelling and epidemiological research on the health effects of water systems, and providing advice for the design of safe water systems and policies.
At the start of the COVID-19 pandemic, he initiated research on sewage surveillance of SARS-CoV-2 and has published on this topic and was invited for keynotes by many organizations. The work inspired many research teams to start wastewater surveillance programs in their country or region. He coordinated the ‘second-opinion’ epidemiological investigation of the Legionella outbreak in Flint, Michigan.
He is advisor of WHO on microbiological (drinking) water guidelines and QMRA since 1991 on SARS and WASH in 2003, and via WHO of the European Commission on the EU Drinking Water Directive and water reuse guidelines. He has coordinated the joint research program of the Netherlands water utilities. He is director of KWR’s WHO collaborating centre on Water Quality & Health and advisor to the WHO on waterborne pathogens and QMRA since 1991 on SARS and WASH in 2003 and ebola and WASH in 2014 and on wastewater surveillance since 2020. He is advisor of EU DG Environment on water reuse guidelines and drinking water guidelines.
Expertise
Publicaties
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2024
A new Bayesian approach for managing bathing water quality at river bathing locations vulnerable to short-term pollution
Wolfgang Seis / Marie Claire Ten Veldhuis / Pascale Rouault / David Steffelbauer / Gertjan Medema
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2024
Bacterial communities of planktonic bacteria and mature biofilm in service lines and premise plumbing of a Megacity
Composition, Diversity, and influencing factors
Anran Ren / Mingchen Yao / Jiaxing Fang / Zihan Dai / Xiaoming Li / Walter van der Meer / Gertjan Medema / Joan B. Rose / Gang Liu -
2024
Disruptive effects of sewage intrusion into drinking water
Microbial succession and organic transformation at molecular level
Mengqing Fan / Anran Ren / Mingchen Yao / Xiaoming Li / Walter van der Meer / Guo Yu / Gertjan Medema / Joan Rose / Gang Liu -
2024
Faecal contamination on lettuce irrigated with different water sources in Maputo, Mozambique
C. A. Niquice-Janeiro / A. Marques Arsénio / G. Medema / J. B. van Lier
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2024
Modeling the health impact of wastewater contamination events in drinking water networks
Sotirios Paraskevopoulos / Stelios Vrachimis / Marios Kyriakou / Demetrios G. Eliades / Patrick Smeets / Marios Polycarpou / Gertjan Medema
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Media
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2024-04-16
Gert Jan Medema in the media 2024
Verscheen in: CNA
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2023-07-16
Gertjan Medema in de media 2023
Verscheen in: Magriet
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2022-09-15
Gertjan Medema in de media 2022
Verscheen in: Water online
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2018-09-12
Zonder deze nieuwe meetmethode lagen 2500 City Swim-deelnemers in verontreinigd zwemwater
Verscheen in: de Volkskrant
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2017-08-12
In deze landen kun je beter geen kraanwater drinken
Verscheen in: Nu.nl Reizen
Prijzen
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2024
Lee Kuan Yew Water Prize 2024
The Lee Kuan Yew Water Prize honours outstanding contributions by individuals or organisations towards solving the world’s water challenges by developing or applying innovative technologies, policies or programmes which benefit humanity.
This prestigious international award is named after Singapore’s first Prime Minister Lee Kuan Yew, whose foresight and leadership has enabled Singapore to attain a sustainable water supply.
Since its inception in 2008, the Lee Kuan Yew Water Prize (LKYWP) has gained a standing in the global water arena as the premier Water Prize amongst its peers, by focusing on innovative water technologies, policies or programmes that have been game-changers in their real-world application. The honour roll for the Water Prize includes laureates with ground-breaking solutions in membrane technology, used water treatment, as well as holistic water policies and management that have benefitted the lives of millions. Their achievements represent the pinnacle in sustainable water solutions that have made a difference to cities and people around the world.
Singapore International Water Week 2024 -
2018-9-17
IWA Project Innovation Award-Bronze winner
For Category Performance Improvement and Operational Solutions. For the Project “Thermal energy recovery from drinking water: exploitation of a renewable energy source”
IWA World Water Congress 2018
Nevenwerkzaamheden
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1996-11-15 - 2026-10-01
(Afval)waterbeheer en sanering
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1991-06-01 - 2026-10-02
Gezondheids- en welzijnszorg