Obiettivo Objectives and content Whatever the 21st century requires from industry, mandates to reduce waste are confronting us today. For the countries of the E.U. the new PARCOM limits require especially for the metal finishing industry, an optimized wastewater management. The lower concentration limit for nickel (< 0,5 mg/l) may require a change in wastewater treatment technology. "Zero discharge" is predicted as a future technology, that means no material ever leaves the industrial process except as a product or a byproduct. This project is aimed at the development of an integrated process for the recycling of nickel salts from industrial electroplating nickelbaths and effluents. The programme will make a comparative study between scaled up demonstrators of two developed engineering concepts which are based on Supported Liquid Membranes (SLM) using chemical driving forces for transfer, and Modified Electro-Dialysis (MED) using electrochemical driving forces for transfer. The results will be compared to conventional recycling and treatment systems. The concepts that we wish to exploit are: - Nickel-ion extraction, presents an interesting challenge for the design and synthesis of selective and strong Ni-ligands. - Anion extraction. Three types of reagents will be studied: - quaternary ammonium ions, - macrocyclic metal complexes and - redox switchable anion extractants. - Ion-pairing extractants for nickel salt recovery. - Electro-assisted liquid membrane extraction. The concept of a solid ion exchanger or a liquid membrane supported in a porous matrix as an ion selective membrane in an electrochemical cell will be engineered. The extraction of nickel ions and anions present in industrial nickel plating baths, such as S04-, cr. (SO3NH2)-, BO3-, is of economical and ecological importance. A pilot-scale modified electrodialysis cell and a modular SLM unit for nickel salts recycling will be tested with industrial nickel electrolytes and effluents. The advantage of the proposed research is that the recycled nickel salts can be reused in nickel plating processes, thus saving costs and decreasing downstream processing and environmental problems. The new technology allows for residual nickel concentrations in effluents markedly below the PARCOM legislation. Campo scientifico engineering and technologyenvironmental engineeringwaste managementwaste treatment processesrecyclingnatural scienceschemical scienceselectrochemistryengineering and technologyenvironmental engineeringwater treatment processeswastewater treatment processesnatural scienceschemical sciencesinorganic chemistrytransition metalsengineering and technologychemical engineeringseparation technologiesdesalinationelectrodialysis Programma(i) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Argomento(i) 0102 - Development of clean production technologies Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore Katholieke Industriële Hogeschool Contributo UE Nessun dato Indirizzo 1,Gebroeders Desmetstraat 9000 Gent Belgio Mostra sulla mappa Costo totale Nessun dato Partecipanti (2) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto KERANOR AS Norvegia Contributo UE Nessun dato Indirizzo 1,Brobekkveien 104 A 0582 OSLO Mostra sulla mappa Costo totale Nessun dato Siemens AG Germania Contributo UE Nessun dato Indirizzo 50,Siemensdam 13629 Berlin Mostra sulla mappa Costo totale Nessun dato