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Recycling of glass and paper found in household refuse is recognized as environmentally desirable but, as yet, little has been done to facilitate the recycling of hard‐wearing consumer goods, the majority of which are either dumped in land‐fill sites or incinerated. Complex consumer durables contain a wide variety of materials, all of which must be separated before efficient recycling can take place. Reports on the Eureka CLEANTECH project which aims to find new technological solutions for cost‐effective reuse of components and sub‐assemblies, as well as waste reduction for products with mainly electrical and electronic components.

We present the concept and first experiences for a Web‐based ecological knowledge management system ILMAX. It manages experience knowledge resulting from an ecological long‐term investigation of the regeneration process of the stream Ilm (Thuringia, Germany). The tools used are iZone, a Web‐based content management system with an emphasis on information retrieval and feedback, and D3, a tool kit for building knowledge‐based systems and for managing case bases. The difficult initializing phase of knowledge management systems was done by a “knowledge champion” gathering and structuring various kinds of text documents, data sheets and unpublished knowledge of domain experts.