Recovery of Chromium With Membrane Technology
International Natural Science, Engineering and Material Technologies Conference, İstanbul, Türkiye, 9 - 10 Eylül 2019, ss.173, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.173
- Dokuz Eylül Üniversitesi Adresli: Hayır
Özet
Pervaporation, one of the membrane based processes using for separation of liquid mixture, provides
the varius advantages of ease of application and operation, energy efficiency, eco-friendliness, economical,
and high separation efficiency. The pervaporation process consists of 3 stages which based on the solution-
diffusion model. These are the selective sorption of the feed solution on the membrane surface, selective
diffusion through the membrane, and desorption of permeate to a vapor phase [1,2]. Metals accumulate in
human tissues, muscles, bones and joints and cause various diseases. The widespread use of chromium (Cr)
in various industries such as steel production, electroplating, cement, painting, metal and textile processing
has caused pollution of natural waters due to unsuitable treatment techniques. The chromium compounds
consist essentially of Cr (III) and Cr (VI). Cr (III) is a less toxic element in the human body compared to Cr
(VI) [3,4].
In this study, it is aimed to differentiate Cr / water (Cr (III), Cr (VI)) mixtures having different
oxidation step by using pervaporation technique by using poly (vinyl alcohol) (PVA) and sodium Y (NaY)
zeolite mixture membranes.