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Received January 11, 2006
Accepted March 20, 2006
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오염화석탄산(PCP)으로 방부 처리된 목재로부터 PCP의 용매추출
Solvent Extraction of Pentachlorophenol(PCP) from PCP-treated Wood
국방과학연구소, 305-600 대전시 유성구 유성우체국 사서함 35-1
Agency for Defense Development, P.O. Box 35-1, Yuseong-gu, Daejeon 305-600, Korea
jcleeadd@hanafos.com
Korean Chemical Engineering Research, April 2006, 44(2), 227-233(7), NONE Epub 10 May 2006
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Abstract
오염화석탄산(pentachlorophenol : PCP)으로 방부 처리된 탄약 목상자를 분해한 목재시료로부터 메탄올, 에탄올,아세토니트릴을 추출용매로 사용하여 PCP를 추출하였다. 실험변수로는 용매종류, 건조목재 시료당 용매의 사용비율,시료의 형태 및 크기, 추출온도 및 초음파 효과를 선정하였다. 목재의 PCP 농도는 평균 720 ppm 이었으며 추출효과는 메탄올이 가장 우수하였다. 농도가 가장 큰 시료(초기농도 1297 ppm)를 메탄올로 상온에서 추출한 결과 2시간 이내에 99％까지 제거되었다. 건조시료당 메탄올의 최소 사용비율(v/w)은 10이었으며 이 실험에서 시료의 형상(chip 및 톱밥)이나 추출온도 및 초음파 사용은 PCP 추출에 큰 영향을 미치지 않았다.
Solvent extraction of pentachlorophenol (PCP) from wood chips of the PCP-treated ammunition box hasbeen studied using methanol, ethanol and acetonitrile. Experimental variables were chosen as the composition of sol-vents, the ratio of solvent per dried wood, size of the substance, extraction temperature and sonication applied to thesamples. The average concentration of PCP was 720 ppm and methanol was the most effective for PCP extraction.Above 99％ of PCP were removed from the sample (initial concentration of PCP; 1297 ppm) within 2 h at room tem-perature by methanol. The minimal ratio of methanol per dried wood chip(v/w) was 10. Type of substances(chip or saw-dust), extraction temperature and sonication showed little effects on PCP extraction.
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Tennessee Valley Authority, “Summary of PCP-treated Wood Waste Management at Army Installations,” Prepared for U.S. Army Environment Center(USAEC) APG, MD, U.S.A (1999)
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Ely RL, Langenberg MB, “Method of Removing and Restoring Wood,” U.S. Patent No. 4,734,138 (1988)
Illman BL, Yang VW, Ferge LA, “Fungal Degradation and Bioremediation System for Pentachlorophenol-treated Wood,” U.S. Patent No. 6,727,087 B2 (2004)
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Law WM, Lau WN, Lo KL, Wai LM, Chiu SW, Chemosphere, 52, 1531 (2003)
Khodadoust AP, Suidan MT, Acheson CM, Brenner RC, Chemosphere, 38(11), 2681 (1999)
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U.S. Federal Specification, “Wood Preservative: Water Repellent,” TT-W-572B (1969)
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Hahn A, Park J, Choi H, Hong S, Han H, Jo B, Oh J, J. Korean Ind. Eng. Chem., 16(3), 323 (2005)
ROK Military Specification, Mil-8140-0006-1 (1988)
