DOI QR코드

DOI QR Code

Development of Rapid Detection Method for Volatilized Formaldehyde from Wood

목재 폼알데하이드 신속검출 공정개발

  • Kim, Jung-Im (Division of Chemical Safety, National Academy of Agricultural Science, RDA) ;
  • Choi, Geun-Hyoung (Division of Chemical Safety, National Academy of Agricultural Science, RDA) ;
  • Kwon, Oh-Kyung (Division of Chemical Safety, National Academy of Agricultural Science, RDA) ;
  • Hong, Su-Myeong (Division of Chemical Safety, National Academy of Agricultural Science, RDA) ;
  • Park, Yun-Gi (Division of Chemical Safety, National Academy of Agricultural Science, RDA) ;
  • Ok, Yong-Sik (Department of Biological Environment, Kangwon National University) ;
  • Kim, Jin-Hyo (Division of Chemical Safety, National Academy of Agricultural Science, RDA)
  • Received : 2011.11.01
  • Accepted : 2011.12.26
  • Published : 2012.03.31

Abstract

We designed a new rapid detection method for volatilized formaldehyde from wood. The process was installed with volatilizing and collecting parts in an incubator. For rapid sampling of formaldehyde from wood, we pulverized the wood to sawdust, and used 0.15-2.0 mm particles for the tests. The highest sampling rate (94.8%) was obtained at 40 mL/min flow rate and $100^{\circ}C$. Under the optimized condition, we could collect the volatilized formaldehyde with good recovery rate. The developed method was applied to the monitoring of the formaldehyde from wood, and the measured concentrations were 0.7-4.6 ${\mu}g/g$ from natural wood, 5.9-12.3 ${\mu}g/g$ from preserved wood, and 5.9-211.5 ${\mu}g/g$ from chemical adhesive processed wood. From the results, we identified natural wood sawdust and chemically processed wood (medium density fiberboard, high density fiberboard, particle board) by the formaldehyde contents except preserved wood.

본 연구에서는 목재로부터 신속한 폼알데하이드 정량분석 시험법을 개발하고자 챔버법을 변형한 방법을 설계하였으며, 톱밥시료는 0.15-2.0 mm 크기의 입자를 사용하였고, 휘발부와 포집부가 분리된 장치에서 휘발온도 및 질소유량별 폼알데하이드 포집률을 측정하였다. 그 결과 질소유량 40 mL/min, $100^{\circ}C$ 조건에서 30분간 포집 할 경우 94.8%의 최대 포집률이 확인되었으며, 본 공정의 농도별 폼알데하이드 포집률은 71.0-94.8% ($r^2$=0.9968)로 확인되었으며, 목재 중 총 폼알데하이드 농도가 증가 할수록 휘발된 폼알데하이드량이 정량적으로 증가함을 확인할 수 있었다($r^2$=0.8234). 목재종류 별 폼알데하이드 평균 함량은 천연톱밥(0.7-4.6 ${\mu}g/g$), 방부목(3.9-5.6 ${\mu}g/g$), 접착제 사용 가공목재(5.9-211.5 ${\mu}g/g$) 순으로 낮은 함량을 확인하였고, 각 그룹별 폼알데하이드 분석결과에 대한 Duncan's multiple range test 수행결과 천연톱밥과 접착제를 사용하지 않는 방부목은 95% 신뢰수준에서 유의적 차이를 나타내지 않았으나, 천연톱밥과 접착제 사용목재간에는 동일 수준에서 유의차가 확인되었다. 이러한 결과로 볼 때, 접착제가 사용된 목재는 본 시험분석을 통해 신속하게 천연목재와 구분이 가능 할 것으로 판단된다.

Keywords

References

  1. Abdelhafez AA, Awad YM, Abd El-Azeem SAM, Kim M-S, Ham K-J, Lim K-J, Yang J-E, and Ok Y-S (2010) Leaching of chromium, copper and arsenic in soils and rapid identification of CCA-treated woods using modified PAN stain. Korean J Soil Sci Fert 43, 60-67.
  2. Chen L, Hoff SJ, Koziel JA, Cal LS, Zelle B, and Sun G (2008) Performance evaluation of a wood-chip based biofilter using solid-phase microextraction and gas chromatography-mass spectroscopy-olfactometry. Biores Technol 99, 7767-7780. https://doi.org/10.1016/j.biortech.2008.01.085
  3. Chon SS, An L, Kim YK, Ju CS, Kwon EM, Jin CS, and Jung WJ (2003) Study on the effects of selected microorganisms to accelerate the cocomposting of food waste and sewage sludge. Korean Soc Environ Engineers 5, 1398-1402.
  4. Hong JH and Park KJ (2007) Performance characteristics of agitated bed manure composting and ammonia removal from composting using sawdust biofiltration system. J Livestock Housing & Environ 13, 13-20.
  5. Kawamura Y, Funakoshi K, Sugita T, and Yamada T (1995) Residues of formaldehyde in woodenware. J Food Hyg Soc Jpn 36, 731-737. https://doi.org/10.3358/shokueishi.36.731
  6. Kim ST, Yim BB, and Jeong JH (2005) Development of a passive sampler using 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole for measuring indoor formaldehyde. J Korean Soc Atmos Environ 21, 593-603.
  7. Lee SJ, Jang SK, Kim MH, Lee HS, Lim JH, Jang M, and Seo SY (2005) Evaluation of sampling and analytical method for emission experiment of pollutants in building materials using small chamber. Anal Sci & Tech 18, 344-354.
  8. Leena M, Jouni J, and Olli S (1992) The effect of air humidification on symptoms and perception of indoor air quality in office. Arch Environ Health 47, 8-15. https://doi.org/10.1080/00039896.1992.9935938
  9. Michael D and Douglas S (1992) Indoor Air 90': Health effects associated with indoor air contaminants. Arch Environ Health 47, 6-7. https://doi.org/10.1080/00039896.1992.9935937
  10. Park JB, Kim YS, Han SH, Song SY, and Choi SS (1998) The characterization of physico-chemical properties on the composting of municipal organic wastes. KORRA 10, 75-85.