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Estimation of polycyclic aromatic hydrocarbons emission from sewage sludge of sewerage treatment plants in Korea
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  • Estimation of polycyclic aromatic hydrocarbons emission from sewage sludge of sewerage treatment plants in Korea
  • Estimation of polycyclic aromatic hydrocarbons emission from sewage sludge of sewerage treatment plants in Korea
저자명
Kim. Dong-Hwan,Hwang. Jong-Seob,Lee. Min-Hee,Ok. Gon
간행물명
한국환경과학회지
권/호정보
2003년|12권 11호|pp.1167-1171 (5 pages)
발행정보
한국환경과학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic contaminants present in sewage sludge, due to their persistence, toxic, bioaccumulative and long range transfer. These characters make themselves as Persistent Organic Pollutants(POPs) in Long Range Transboundary Air Pollutions convention(LRTAP) of Europe. A method of the gas chromatographicmass spectrometric (GCMS) determination of PAHs present in sewage sludge was developed and applied to analyzed samples from five sewerage treatment plants (SWTPs), having different treatment types. PAHs were extracted from freeze-dried samples by toluene 16 hours in a soxhlet extraction system. The sludge extracts were cleaned-up by an activated silica gel column chromatography. The sum of the 16 US Environmental Protection Agency PAHs sewage sludge samples varied from 2.44 to 4.82 $mu extrm{g}$/g. Concentration of emission carcinogen PAHs(PAHcarc), such as Benzo(a)anthracene, Benzo(b)f1uoranthene, Benzo(k)f1uoranthene, Benzo(a)pyrene, Dibenzo(a,h)anthracene and Indeno( 1,2,3-cd)pyrene ranged from 0.62 to 1.03 $mu extrm{g}$/g. The total amount of PAHs emission from sewage sludge in Korea was calculated as a top-down approach. PAHs and $Sigma$PAHcarc from sewage treatment plants had emitted to environment by several pathway. The highest amount of emission to the environment was remarked in the ocean dumping(PAHs and $Sigma$PAHcarc emissions were 1155.95 kg/year and 5040.32 kg/year, respectively).