Local water treatment and reuse in megacities

Themes: Life Science & Health, Health


A TRL is a measure to indicate the matureness of a developing technology. When an innovative idea is discovered it is often not directly suitable for application. Usually such novel idea is subjected to further experimentation, testing and prototyping before it can be implemented. The image below shows how to read TRL’s to categorise the innovative ideas.

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Small scale decentralised wastewater treatment plants can solve fresh water scarcity in developing megacities, where central wastewater treatment and – infrastructure is typically lacking.


This project aims to integrate different innovative and proven technologies into decentralised water treatment plants. These will recover water of a location-specific and reuse-dictated quality, as well as recover fuels and nutrients.


Pilot projects of this philosophy and technology are (to be) realised in India and Mozambique. The resulting knowhow will be applicable in all megacities with these (waste) water challenges.

Dr. Ir. Merle de Kreuk


Dr. Ir. Ralph Lindeboom

Dr. ir. Doris van Halem

Dr. Andre Marques Arsenio

Prof. Dr. Ir. Luuk Rietveld