Open AccessThe potential of the composite membranes Ch-AgNP to recover silver from X-ray film processing wastes
Author(s) -
Ni Nyoman Rupiasih,
Wayan Gede Suharta,
Made Sumadiyasa,
Decky Danuarta Fernanda,
M. Y. Imas
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1572/1/012081
Subject(s) - membrane , filtration (mathematics) , silver nanoparticle , composite number , materials science , chitosan , chemical engineering , nanoparticle , flux (metallurgy) , analytical chemistry (journal) , nuclear chemistry , chemistry , chromatography , composite material , nanotechnology , metallurgy , biochemistry , statistics , mathematics , engineering
The potential of the composite membranes chitosan-silver nanoparticles (Ch-AgNP) to remove silver (Ag) from X-ray film processing wastes was studied using a filtration method. The study includes the pure water flux (PWF), product flux (PF), and rejection coefficient (R). Several of composite membranes such as Ch-AgNP10, Ch-AgNP100, Ch-AgNP250, Ch-AgNP500, and a pure chitosan membrane (Ch) were used in this study. The filtration was carried out using a dead-end filtration method with a pressure of 260-270 kPa. The concentration of silver waste was determined using Atomic Absorption Spectroscopy (AAS). The results showed that the composite membranes have a better ability to filter silver from X-ray film processing wastes than the pure chitosan membrane. The highest rejection coefficient (R) gave by Ch-AgNP100 of around 95.55% with the pure water flux and product flux of 2051.03 and 1192.28 L/m 2 ·h, respectively. The rejection coefficient of the composite membranes increased with increasing the mass of silver nanoparticles, while the PWF and PF were decreased. These results indicated that chitosan composite membranes are a potential method for recovering silver from X-ray film processing wastes. It’s a safe and environmentally friendly method.