66th webinar of the Hebd'Eau series entitled "Water-intensive industries and treatment technologies: opportunities and challenges" with Henri Spanjers
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Speaker: Henri Spanjers is an environmental engineer. He has worked in several research institutes in various EU countries and was a project manager in a consulting company. He is a professor at Delft University of Technology, Faculty of Civil Engineering and Geosciences, where he heads the Industry Water Group, and is currently a visiting professor at Laval University. He is editor-in-chief of the journal Water Resources and Industry.
See the PPT presentation here »
Abstract: Globally, industry is responsible for 20% of total water withdrawals, and in some industrialized countries this figure can be as high as 60%. After use, most water is returned to the environment at a lower quality than when it was extracted. The majority of manufacturing industries are water-intensive, meaning that they require large amounts of water to support the various processes of transforming raw materials into products. The majority of these water-intensive processes are generic across industries. These include processes such as steam generation, cooling, washing, cleaning and many others, each with unique input requirements and varying effluent qualities. Traditionally, effluents from a company's various processes are combined into a mixed waste stream that undergoes treatment to recover water and other valuable resources for reuse, or to remove harmful constituents before the water is discharged. However, the existence of effluents of different qualities offers the possibility of separating them and reusing the water and its components in the same process or in other processes, either without treatment or with intermediate treatment. For this purpose, various innovative technologies have been developed to treat process effluents with specific and often extreme qualities. The purpose of this presentation is to explore water-intensive industries and processes, and to discuss specific treatment technologies, highlighting the challenges and opportunities.
The presentation will be in English
