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Over the past twenty years, the knowledge and understanding of wastewater treatment has advanced extensively and moved away from empirically-based approaches to a fundamentally-based ‘first principles’ approach embracing chemistry, microbiology, mathematics, physical and bioprocess engineering. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation by computers.

Constructed wetlands are very important for developing countries for wastewater treatment. They are simple, and easy to design and maintain. Please enter the bridge and discover more about our open educational resources, our online course, and our three weeks short course.


These open educational resources are part of the online course on Water Quality Assessment. This course will first introduce you to UNESCO-IHE and to the teachers of this module. After that we will review the contents of the module. Finally, we will introduce you to the world of Water and Water Quality, with some general information about “Water and Life” and “Sustainable Use of Water”. Time Framework for the Course: 1-2 Weeks.

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This OpenCourseWare is directed to chemical and environmental engineers and scientists working in the urban or industrial water field and wanting to have a better grasp at the efficient dealing with water. For instance, this course will be of interest to participants who would like to get insights into cleaner production practices in process industries with emphasis in the fields of urban, municipal and industrial sanitation, resource recovery, process design and implementation.

The aim of this course is to provide an overview of theory and experience in the benchmarking of water and sanitation services for the purpose of improving performance. The module draws on academic applied research and benchmarking practices worldwide.

This course provides the tools to analyse policy and management challenges of decentralized (peri-)urban sanitation services, and to select and apply instruments and management approaches to address these challenges.

This e-learning module aims to contribute to capacity building of professionals involved in disaster risk management from extreme hydro-meteorological events.  The module represents the means to disseminate the concepts developed within the PEARL project (  
spate irrigation

The Spate Irrigation Network, with support from UNW-DPC and in cooperation with UNESCO-IHE, has produced this series of lectures on Spate Irrigation Systems.

Domestic wastewater

The general objective of the Urban Drainage and Sewerage course is to provide an understanding of the basic principles and knowledge for the planning, design and construction of urban drainage and sewerage systems. The course is structured under 7 topics: introduction to urban drainage and types of sewerage systems, urban hydrology and hydraulics, dry and wet weather flow characterization, data collection and processing, design and modelling of urban drainage systems, advanced topics in urban drainage, case studies.

book cover Faecal Sludge Management

This open courseware set gives an overview of the activities and involvement of UNESCO-IHE in the field of Faecal Sludge Management. Download the new book 'Faecal Sludge Management, systems approach for implementation and operation' below.

toilet Ecological or sustainable sanitation focuses on sanitation beyond providing people with a toilet. It wants to protect and promote human health by providing a clean environment and breaking the cycle of disease. More than that, it aims to be economically viable and socially acceptable; to be technically and institutionally appropriate; and to protect the environment and natural resources.

picture for GIS course

For many studies models are used or developed. During modelling courses not much attention is paid to the preprocessing of input data and parameters needed for the models. A lot of open source software is available for this purpose. Besides desktop tools with graphical user interfaces, scripting is very useful for processing large datasets and timeseries. With the skills learned in this course you will be able to more efficiently process your data and setup and improve your models.

Tidel current modelling, Texel, Netherlands

The Hydrology and Hydraulics course provides lecture notes, presentations and assignments structured under 6 topics: hydrology data, engineering hydrology, free surface hydronamics, hydraulic laboratory, introduction to GIS and introduction to remote sensing.


comupter aquatic model

The Computational Hydraulics course provides lecture notes, presentations and assignments related to the modelling of aquatic. The focus is on problems related to shallow water hydrodynamics and water quality, surges and groundwater. The course focuses in the development and analysis of numerical algorithms for fluid flow problems and the implementation of the computational methods on a PC.