울산산업공단에서 배출되는 coal fly ash로 합성한 제올라이트를 폴리슬폰으로 고정화하여 제조한 PS-FZ 비드의 Sr 및 Cu 제거 특성 = Removal Characteristics of Sr and Cu Ions using PS-FZ Beads fabricated by Immobilization of Zeolite prepared from Coal Fly Ash from an Ulsan Industrial Complex with Polysulfone

다국어 초록 (Multilingual Abstract)

Zeolite (FZ) prepared using coal fly ash from an Ulsan industrial complex was immobilized with polysulfone (PS) to fabricate PS-FZ beads. The prepared PS-FZ beads were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. The optimum ratio for preparing PS-FZ beads was 1 g of PS to 2 g of FZ. The removal efficiencies of Sr and Cu ions by the PS-FZ beads increased as the solution pH increased and nearly reached a plateau at pH 4. A pseudo-second-order model morel fit the adsorption kinetics of both ions by the PS-FZ beads better than a pseudo-first-order model. The Langmuir isotherm model fit the equilibrium data well. The maximum adsorption capacities calculated from the Langmuir isotherm model were 46.73 mg/g and 62.54 mg/g for the Sr and Cu ions, respectively. Additionally, the values of thermodynamic parameters such as free energy (ΔG˚), enthalpy (ΔH˚) and entropy (ΔS˚) were determined. The results implied that the prepared PS-FZ beads could be interesting an alternative material for Sr and Cu ion removal.

참고문헌 (Reference)

1 이창한, "제올라이트를 SAN으로 고정화한 SAN-Zeolite 비드에 의한 Sr과 Cs 이온 제거" 한국환경과학회 24 (24): 1331-1341, 2015

2 이창한, "제올라이트를 PVA로 고정화한 흡착제에 의한 Cs과 Sr 이온 제거" 대한환경공학회 37 (37): 450-457, 2015

3 이창한, "울산지역 공단에서 발생되는 비산재를 이용한 제올라이트 합성" 대한환경공학회 33 (33): 301-306, 2011

4 이창한, "스트론튬과 세슘 이온의 혼합 몰비를 달리한 이성분 용액에서 제올라이트 A에 의한 경쟁 흡착: 흡착등온 및 속도해석" 한국환경과학회 24 (24): 151-162, 2015

5 Ma, B., "Removol of Co2+, Sr2+ and Cs+ from aqueous solution by phosphate-modified montmorillonite (PMM)" 276 : 336-346, 2011

6 Smičiklas, I., "Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite" 35 (35): 139-144, 2007

7 Faghihian, H., "Preparation of a novel PAN -zeolite nanocomposite for removal of Cs+ and Sr2+ from aqueous solutions : Kinetic, equilibrium and thermodynamic studies" 222 (222): 41-48, 2013

8 Gurboga, G., "Preparation of TiO2-SiO2 mixed gel spheres for strontium adsorption" 120 : 135-142, 2005

9 이창한, "Polysulfone으로 제올라이트를 고정화한 새로운 PS-zeolite 비드에 의한 Sr 이온 및 Cs 이온의 흡착 특성" 한국환경과학회 24 (24): 671-678, 2015

10 Richardson, S. D., "Occurrence, genotoxicity, and carcinogenicity of regulated and emerging disinfection by-products in drinking water: A Review and roadmap for research" 636 : 178-242, 2007

11 Pavolova, H., "Modelling of copper and zinc adsorption onto zeolite" 55 (55): 712-714, 2016

12 Panayotova, M. I., "Kinetics and thermodynamics of copper ions removal from wastewater by use of zeolite" 21 : 671-676, 2001

13 Wu, F. C., "Kinetic modeling of liquid-phase adsorption of reactive dyes and metal ions on chitosan" 35 (35): 613-618, 2001

14 Bowen, H. J. M., "Environmental chemistry of the elements" Academic Press 1979

15 Wan Ngah, W. S., "Comparative study on adsorption and desorption of Cu(II) ions by three types of chitosan-zeolite composites" 223 : 231-238, 2013

16 이창한, "Coal Fly Ash로 합성한 제올라이트에 의한 Sr(II)과 Cs(I) 이온의 제거 특성" 한국환경과학회 23 (23): 1987-1998, 2014

17 Karabulut, S., "Batch removal of copper(II) and zinc(II) from aqueous solutions with low-rank Turkish coals" 18 : 177-184, 2000

18 Pandey, P., "Batch adsorption studies for the removal of Cu(II) ions by zeolite NaX from aqueous stream" 2009

19 Wang, S., "Adsorption of Cu, Pb, and humic acid on natural zeolite tuff in single and binary systems" 62 : 64-70, 2008

20 Mimura, H., "Adsorption behavior of cesium and strontium on synthetic zeolite p" 30 (30): 436-443, 1993