Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

Synthesis and characterization of epoxy containing hydrogel membrane adsorption system and application to reducing of pollution in chrome tanning and dyeing process

16th World Nano Conference

June 05-06, 2017 Milan, Italy


Sinan Akgol, S Meric Acıkel, R Hilal Senay and Ahmet Aslan

Ege Universitry, Turkey
Istanbul University, Turkey

Posters & Accepted Abstracts : J Nanomater Mol Nanotechnol
DOI : 10.4172/2324-8777-C1-009

Abstract


Trivalent chromium is an important pollutant by a variety of industrial wastewaters like textile, leather tanning and metal industries. Especially the releasing non bounding Cr III ions in water can be reduced to harmful Cr VI ions by the environmental factors (UV, temperature, etc.). So, day by day trivalent chromium removal from waters gains importance. In advance processes such as ozonation, electrochemical and ultrasonic techniques, membrane filtration, photo-catalysis and adsorption have been used for the heavy metal removal. Nowadays, adsorption techniques by polymers have been popular studies because of simplicity of design, ease of usability and effectiveness. However hydrogel membrane systems, which are a separation technique, can adsorb various chemicals with their functional groups and can retain aqueous solutions of up to hundreds of times their own weight. In this presented work, p(HEMA-GMA) poly (hydroxyl-ethyl methacrylate-co-glycidyl methacrylate) hydrogel membrane was produced by UV photo polymerization and the synthesized membrane was coupled with iminodiacetic acid (IDA) in order to chelate the Cr III ions at different concentrations of aqueous Cr III solution (1300- 13000 ppm) at pH 4.3 (adjusted with HCl and NaOH), which was the optimum pH for Cr III chelate formation, at 25oC and the Cr III adsorption capacity of p(HEMA-GMA)-IDA membrane was determined using a UV/Vis spectrophotometer at a wavelength of 601 nm. Also characterization of p (HEMA-GMA)-IDA membrane was researched by SEM imagines, ATRFTIR, Langmuir and Freundlich adsorption isotherms. Finally the results showed that p (HEMA-GMA)-IDA membranes was calculated as 361.21 mg/g (6.95 mmol/g) Cr III ions. So p (HEMA-GMA)- IDA membrane can effectively be used for the removal of trivalent chromium from aqueous solutions. Then p (HEMA-GMA)-IDA-Cr(III) membrane was used for removing acid dye in the dying process effluents in laboratory conditions.

Biography


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