Vips Press service on the results of European research. November 1999

Directorate-General For Translation European Commission

Description

European Commission Innovation Press service on the results oí European research Recycling water from industrial waste Papermaking can cause water pollution. In an effort to eliminate this problem, an Innovation project has validated a new technology - water recycling by waste-water evaporation - which could prove extremely valuable to industry and the environment alike. Keywords: waste treatment, waste water, evaporation, water pollution, recycling Background Enormous amounts of fresh water are contaminated by the paper industry during manufacturing processes. The water is taken from local rivers or lakes and returned as effluent which, in turn, causes water pollution. Separating the water from the industrial waste by evaporation is the best solution to this problem because the water can then be recycled and re­used repeatedly, without the risk of unwanted solids building up in the system. However, there are many technical and economic difficulties associated with using conventional evaporation equipment, including high investment and energy consumption, corrosion and scaling. A new evaporator has been invented in Finland which is able to overcome these drawbacks. The underlying idea was to use thin plastic sheets as the heat-transfer surface instead of metal plates, an innovation which makes it possible to build large, corrosion-resistant heat-exchangers at low cost.

Informations

• Publié par: EUROPEAN-COMMISSION
• Nombre de lectures: 14
• Langue: English
• Poids de l'ouvrage: 2 Mo

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