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标题：STUDIEREA PROCESULUI DE DIMINUARE A CONCENTRAŢIEI COLORANŢILOR DIRECŢI DIN SOLUŢIILE-MODEL PRIN APLICAREA METODELOR FIZICO-CHIMICE
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作者：Vera MATVEEVICI ; Gheorghe DUCA ; Maria GONŢA 等
期刊名称：Studia Universitatis Moldaviae: Stiinte Exacte si Economice
印刷版ISSN：1857-2073
电子版ISSN：2345-1033
出版年度：2011
期号：1(41)
页码：147-160
出版社：Moldova State University
摘要：The process of removal of textile coloring agents from model solutions by means of consecutive electrochemical andcatalytic oxidative treatment in the presence of hydrogen peroxide, and its dependence of the amount of electrochemicalcoagulant, initial concentration and properties of the coloring agent as well as the iron ions (II) content was discussed incurrent paper.The obtained results prove that the removal of reactive colorants through electrical generation of coagulants is moreeffective and economically sound when carried out from more concentrated model solutions of textile residual waters(the initial concentration should between 150-200 mg/l).The application of catalytic oxidation procedure can be applied in case of removal of reactive colorants of lessconcentrated solutions (the amount of colorants should not exceed 50 mg/l).From the acquired results it was identified that combined methods of electrochemical removal and catalytic oxidationby hydrogen peroxide of reactive colorants assure their effective removal from model solutions of residual waters containingup to 200 mg/l of mentioned colorants. The mineralization and residues content were reduced by 97-98%, while theconsumption of coagulant was lower by a factor of 2-2.5 in comparison with conventional methods of treatment.