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목재방부제(CCA) 오염토양의 소성가공 굴껍질을 이용한 비소 안정화

문덕현;정경훈;김태성;김지형;최수빈;문옥란;옥용식
Moon, Deok-Hyun;Cheong, Kyung-Hoon;Kim, Tae-Sung;Khim, Jee-Hyeong;Choi, Su-Bin;Moon, Ok-Ran;Ok, Yong-Sik

  • 발행 : 2009.12.30

초록

Arsenic (As) is known to be very toxic and carcinogenic to human beings. Arsenic contaminated soil was collected from a timber mill site at Busan Metropolitan City, Korea, where chromated copper arsenate (CCA) had been used to protect wood from rotting caused by insects and microbial agents. The soil was stabilized using both natural oyster shells (NOS) and calcinated oyster shells (POS). The calcination of natural oyster shells was accomplished at a high temperature in order to activate quicklime from calcite. Two different oyster shell particle sizes (-#10 mesh and -#20 mesh) and curing periods of up to 28 days were investigated. The stabilization effectiveness was evaluated based on the Korean Standard Test (KST) method (1N HCl extraction). The stabilization results showed that the POS treatment was more effective than the NOS treatment at immobilizing the As in the contaminated soils. A significant As reduction (96%) was attained upon a POS treatment at 20 wt% and passed the Korean warning standard of 20 mg/kg ('Na' area). However, an As reduction of only 47% (169 mg/kg) was achieved upon a NOS treatment at 20 wt%. The -#20 mesh oyster shells seem to perform better than the -#10 materials. The scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX) results showed that As immobilization was strongly associated with Ca and O in the presence of Al and Si.

키워드

Arsenic;Chromated copper arsenate;Oyster shells;Scanning electron microscopy;Stabilization

참고문헌

  1. Yoshida, T., Yamauchi, H. and Fan, S. G. (2004) Chronic health effects in people exposed to arsenicvia the drinking water: dose-response relationships in review. Toxicol. Appl. Pharm. 198, 243-252 https://doi.org/10.1016/j.taap.2003.10.022
  2. Kim, H. and Kim, D. J. (2007) Characteristics of chromium, copper, and arsenic leaching from CCAtreated wood. J. Environ. Toxicol. 22(4), 339-348
  3. Gezer, E. D., Yildiz, U. C., Temiz, A., Yildiz, S. and Dizman, E. (2005) Cu, Cr and As distribution in soils adjacent to CCA-treated utility poles in Eastern Blacksea Region of Turkey. Build. Environ. 40, 1684-1688 https://doi.org/10.1016/j.buildenv.2004.12.015
  4. Koo, J., Song, B. and Kim, H. (2008) Characteristics of the release of chromium, copper, and arsenic from CCA-treated wood exposed to the natural environment. Anal. Sci. Technol. 21(1), 1-8
  5. Conner, J. R. (1990) Chemical Fixation and Solidification of Hazard Wastes, Van Nostrand Reinhold, New York. p. 692
  6. USEPA, Treatment Technologies for Site Cleanup, 11th ed., EPA-542-R-03-009, Office of Solid Waste and Emergency Response, Washington, DC, 2004
  7. Singh, T. S. and Pant, K. K. (2006) Solidification/ stabilization of arsenic containing solid wastes using Portland cement, fly ash and polymeric materials. J. Hazard. Mater. B131, 29-36
  8. Dermatas, D., Moon, D. H., Menounou, N., Meng, X. and Hires, R. (2004) An evaluation of arsenic release from monolithic solids using a modified semi-dynamic leaching test. J. Hazard. Mater. B116, 25-38
  9. Shin, N. C., Moon, J. I. and Sung, N. C. (2000) Application effect of oyster shell as acidic soil amendment. J. Korean Solid Wastes Eng. Soc. 17(6), 774-780
  10. Dutre, V. and Vandecasteele, C. (1995) Solidification/stabilization of arsenic-containing waste: leach tests and behavior of arsenic in the leachate. Waste Manage. 15, 55-62 https://doi.org/10.1016/0956-053X(95)00002-H
  11. Dutre, V., Vandecasteele, C. and Opdenakker, S. (1999) Oxidation of arsenic bearing fly ash as pretreatment before solidification. J. Hazard. Mater. B68, 205-215
  12. Moon, D. H., Dermatas, D. and Menounou, N. (2004) Arsenic immobilization by calcium-arsenic precipitates in lime treated soils. Sci. Total Environ. 330(1-3), 171-185 https://doi.org/10.1016/j.scitotenv.2004.03.016
  13. Moon, D. H., Wazne, M., Yoon, I. H. and Grubb, D. G. (2008) Assessment of cement kiln dust (CKD) for stabilization/solidification (S/S) of arsenic contaminated soils. J. Hazard. Mater. 159, 512-518 https://doi.org/10.1016/j.jhazmat.2008.02.069
  14. Gilchrist, J.D. (1989) Extraction metallurgy (3rd ed.). Oxford: Pergamon Press. p. 145

피인용 문헌

  1. Stabilization of As Contaminated Soils using a Combination of Hydrated Lime, Portland Cement, FeCl3·6H2O and NaOH vol.29, pp.1, 2010, https://doi.org/10.5338/KJEA.2009.28.4.378
  2. Current research trends for heavy metals of agricultural soils and crop uptake in Korea vol.31, pp.1, 2012, https://doi.org/10.5338/KJEA.2009.28.4.378
  3. Stabilization of Heavy Metal Contaminated Paddy Soils vol.12, pp.2, 2012, https://doi.org/10.5338/KJEA.2009.28.4.378
  4. Heavy Metal Stabilization in Soils using Waste Resources - A Critical Review vol.58, pp.2, 2015, https://doi.org/10.5338/KJEA.2009.28.4.378