Objective
Avoidance of salinity in waste water by the recovery of the acids and bases applied in the regeneration of ion exchangers
In accordance with present technical standards, ion exchangers combined with other separation processes are applied in the treatment of process water and saline waste water. However, the regeneration of ion exchangers requires the use of large quantities of acids and bases which are neutralized and discharged after the regeneration process has been completed. Consequently the waste water has a considerably high salt concentration.
The demonstration project focuses on the development of a closed, minimum-waste process and a prototype plant for the regeneration of ion exchangers which involves the innovative technology of electrodialysis with bipolar membranes (EDBM). This technological process allows acids and bases to be recovered and recirculated. However, optimum preliminary membrane desalination of the water, before entering the ion exchanger plant, is essential. For this purpose, combinations of low/high pressure reverse osmosis (LPRO/HPRO) and electrodialysis with conventional membranes (ED) are applied for partial desalination of the water and simultaneous concentration of the brine. Feed water must undergo optimum pretreatment in order to extend the operational period of the membranes in the partial desalination state and to reduce operating costs.
The financial and cooperational partners of the upt (Saarber AG, Schwarting KG, Stadtwerke Saarbrucken AG) see great possibilities for the application of this technological process in important operations. Upt's partner is the FuMATech GmbH who is the only European manufacturer of bipolar membranes.
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
66123 Saarbrücken
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.