The treatment of wastewaters with complex load including dyes and heavy metals is a subject of paramount importance since trace amounts of these compounds lead to an enormous pollution problem. The present research proposes an innovative, fast and efficient microemulsion system for simultaneous extraction of a mixture of dyes (Crystal violet and Rhodamine B) and heavy metals (cobalt(II) and copper(II) ions) from such wastewaters. The used microemulsion is an environmental friendly system containing Brij 30 as nonionic surfactant and butyl acetate as organic phase. The effect of various parameters with significant influence on the dye and metals extraction efficiencies has been investigated in order to find out the optimal compositions for an efficient extraction of dyes – heavy metals mixture from aqueous media. The results show that the optimum extraction conditions for this system corresponds to pH = 5, a water to oil volumetric ratio equal to 9 and a concentration of the complexing agent equal to 2 mol/L.

包括染料和重金属在内的具有复杂负载的废水的处理是最重要的主题，因为痕量的这些化合物会导致巨大的污染问题。本研究提出了一种创新，快速，高效的微乳液系统，用于同时从此类废水中提取染料（结晶紫和若丹明B）和重金属（钴（II）和铜（II）离子）的混合物。所用的微乳液是一种环境友好的体系，其中包含Brij 30作为非离子表面活性剂，乙酸丁酯作为有机相。为了找到从水性介质中有效萃取染料-重金属混合物的最佳组成，已研究了对染料和金属萃取效率有重大影响的各种参数的影响。