유기물자원화 (Journal of the Korea Organic Resources Recycling Association)

  • 제24권3호
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  • Pages.15-21
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  • 2016
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  • 1225-6498(pISSN)
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  • 2508-3015(eISSN)
유기성자원학회 (Korea Organic Resources Recycling Association)
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커피찌꺼기에 흡착된 은 이온의 탈착 및 재생 특성

Characteristics of Desorption and Recycling Capacity for Previously Adsorbed Silver into Waste Coffee Grounds

  • 전충 (강릉원주대학교 생명화학공학과)
  • Jeon, Choong (Department of Biochemical Engineering, Gangneung-Wonju National University)
  • 투고 : 2016.06.28
  • 심사 : 2016.07.13
  • 발행 : 2016.09.30
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초록

질산, ethylene diamine triacetic acid (EDTA) 그리고 nitrilo triacetic acid (NTA)을 이용하여 폐기물인 커피찌꺼기에 흡착된 은 이온에 대한 탈착 특성을 조사하였다. 1.0 M의 질산용액을 이용하였을 때 가장 높은 97.8 %의 탈착율을 얻을 수 있었다. 또한, S/L 비가 1.0 이하일 경우, 커피찌꺼기에 흡착된 은 이온은 약 98~100 % 탈착되어졌으며 약 60분의 시간 내에 대부분의 탈착이 일어났다. 게다가 2번의 반복된 흡착 및 탈착 공정을 거친 후의 재사용된 커피찌꺼기의 은 이온에 대한 흡착능은 약 43.9 mg/g으로서 재사용전의 커피찌꺼기의 흡착능인 45.9 mg/g에 비해서 약 4.4%의 감소율을 보였다.

This experiment was conducted to test desorption and recycling characteristics for silver ion adsorbed into waste coffee grounds by using various desorbing agents such as nitric acid, ethylene diamine triacetic acid (EDTA) and nitrilo triacetic acid (NTA). It is appeared that the highest desorption efficiency for silver ions was obtained as about 97.8 % by 1.0 M of nitric acid solution. Also, in the case of less than 1.0 of the ratio of solid and liquid (S/L) (g/L), silver ions adsorbed onto coffee grounds was desorbed as about 98~100 %, and most of desorption process was completed within 60min. In addition, adsorption capacity of reused waste coffee grounds for silver ions was highly maintained as about 43.9 mg/g until the $2^{nd}$ cycle, as compared with the adsorption capacity with 45.9 mg/g of the adsorption capacity for virgin waste coffee grounds.

키워드

참고문헌

  1. Yan, L. and Zheming, X., "Precious metals recovery from waste printed circuit boards: A review for current status and perspective", Reso. Conserv. Recycl., 113, pp. 28-39. (2016). https://doi.org/10.1016/j.resconrec.2016.05.007
  2. Kovo, G. A., Folasegun, A. D. and Kayode, O. A., "Mechanism on the sorption of heavy metals from binary-solution by a low cost montmorillonite and its desorption potential", Alexandria Eng. J., 54(3), pp. 757-767. (2015). https://doi.org/10.1016/j.aej.2015.03.025
  3. Sekhar, K. C., Kamala, C. T., Chary, N. S., Sastry, A. R. K., Rao, T. N. and Vairamani, M., "Removal of lead from aqueous solutions using an immobilized biomaterial derived from a plant biomass", J. Hazard. Mater., 108, pp. 111-117. (2004). https://doi.org/10.1016/j.jhazmat.2004.01.013
  4. Njikam, E. and Schiewer, S., "Optimization and kinetic modeling of cadmium desorption from citrus peels: A process for biosorbent regeneration", J. Hazard. Mater., 213-214(1), pp. 242-248. (2012). https://doi.org/10.1016/j.jhazmat.2012.01.084
  5. Mata, Y. N., Blazquez, M. L., Ballester, A., Gonzalez, F. and Munoz, J. A., "Studies on sorption, desorption, regeneration and reuse of sugar-beet pectin gels for heavy metal removal", J. Hazard. Mater., 178(1-3), pp. 243-248. (2010). https://doi.org/10.1016/j.jhazmat.2010.01.069
  6. Jeon, C. and Kwon, T. N., "Desorption and regeneration characteristics for previously adsorbed indium ions to phosphorylated sawdust," Environ. Eng. Res., 17(2), pp. 65-67. (2012). https://doi.org/10.4491/eer.2012.17.2.065
  7. Jeon, C., "Desorption and regeneration characteristics for previously adsorbed silver ions onto crab shells using nitric acid," J. of KORRA, 21(4), pp. 82-87. (2013).
  8. Jeon, C., "Adsorption of silver ions from industrial wastewater using waste coffee grounds," Korean J. Chem. Eng., in press (2016).
  9. Yurtsever. M. and Sengil. A., "Adsorption and desorption behavior of silver ions onto valonia tannin resin," Trans. Nonferrous Met. Soc. China, 22, pp. 2846-2854. (2012). https://doi.org/10.1016/S1003-6326(11)61541-0
  10. Mustafa, G., Singh, B. and Kookana, R. S., "Cadmium adsorption and desorption behavior on goethite at low equilibrium concentration", Chemosphere., 57(10), pp. 1325-1333. (2004). https://doi.org/10.1016/j.chemosphere.2004.08.087
  11. Volesky, B., : Biosorption of heavy metals: Environmental impact of heavy metals (1st ed.) CRC Press, Boca Raton, FL (1990).

피인용 문헌

  1. Overview for Coffee Grounds Recycling Technology and Future Concerns vol.35, pp.7, 2018, https://doi.org/10.9786/kswm.2018.35.7.587