This paper considers the demineralization of mine water using a lab-scale electrodialysis unit EDR-Z/10-1.0. Experiment were carried out on real mine water from Jeremenko water pit complex (DIAMO s.p., ODRA Ostrava branch, Czech Republic). These mine water greatly affect surface water quality, especially high concentration of dissolved solids, sulfates and chlorides. Aim of research was to treatment of mine water to quality corresponding with legislative limits for surface water. Electrodialysis tests were conducted in the batch and feed-and-bleed modes. It was demonstrated that electordialysis is good way for mine water treatment.
The paper deals with treatment of wastewater produced by the energy industry using a membrane processes (electrodialysis). Prior to application of this technology, the influence of wastewater on the chosen type of membranes is solved. Specifically, it means eliminating the influence of formation soluble (insoluble) salts which could negatively affect water treatment by the chosen technology. The paper also summarizes the results of laboratory tests of electrodialysis with the aim to acquire treated wastewater of such quality meeting legislative limits for discharges to surface water (i.e. total dissolved solids below 1g.l -1 ).
AbstraktPříspěvek se zabývá problematikou úpravy odpadních vod z energetiky s využitím membránových procesů (elektrodialýzy). Před samotnou aplikací této technologie je řešen vliv chemismu upravované vody na použitý typ membrán. Konkrétně jde o eliminaci vlivu tvorby málo rozpustných (nerozpustných) solí, které by úpravu vody zvolenou technologií negativně ovlivnily. Příspěvek dále shrnuje získané výsledky doposud provedených testů elektrodialýzy se zaměřením na získání upravené odpadní vody vyhovující legislativním limitům pro vypouštění do vod povrchových (tj. rozpuštěné látky pod 1 g.l -1 )
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