Перегляд за Автор "Serdiuk, Vasyl"

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Ion exchange membranes for regeneration of hydrochloric acid from etching solutions
(2018) Bolshanina, Svitlana; Serdiuk, Vasyl; Ponomarova, Ludmyla; Yanovska, Anna; Ableev, Alexey
The process of regeneration of utilized hydrochloric acid etching solutions using electrochemical equipment with ion exchange membranes was examined. The products of cathode reactions were studied. It was proved that the waste solution was not only purified from contaminate ions, but the acid content increased during the electrolyzer operation.Розглядається процес регенерації відпрацьованих травильних розчинів на основі хлоридної кислоти з використанням електрохімічних пристроїв з іонообмінними мембранами. Вивчено продукти реакцій на катоді. Доведено, що при роботі електролізера відпрацьований травильний розчин не тільки очищується від забруднюючих його іонів, але і збільшується вміст кислоти.
Laboratory and industrial testing of membrane electrochemical devices for purification and regeneration of chromium-containing galvanic solutions
(2018) Serdiuk, Vasyl; Zaytseva, Kseniya; Sklabinsky, Vsevolod; Ivchenko, Viktoriya; Ponomarova, Ludmyla
The regeneration process of galvanic solutions by transferring the contaminating Сd2 + and Zn2 + cations through a cation exchange membrane RALEX®CM-PES 11-66 in a two-chamber electrolyser has been researched. The cathode processes that are associated with the migration of ions through the membrane and the cathodic deposition have been investigated. Laboratory and industrial testing of devices was carried out. Cathode products were studied using scanning electron microscopy with X-ray phase microanalysis functions to determine the elemental composition of cathodic deposits. This process allows to regenerate galvanic solutions and maintain stable composition of passivation baths.