The new trends in societies towards sustainable development have necessitated a new way of thinking regarding water treatment, the distribution of drinking water and wastewater treatment. A process of implementing new European water directives is ongoing and the consequences and need for coordination of these changes are discussed. Raw water qualities, water treatment technology and drinking water quality have impacts on water quality deterioration in the distribution networks that negatively affect the possibilities for recycling sewage sludge containing valuable nutrients. Measures for coping with these issues are discussed in general terms and suggestions for future strategies and research activities are given.

distribution systems, drinking water, network, pipe material, water quality
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© IWA Publishing 2001
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