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KMID : 0385520120250060421
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Analytical Science & Technology
2012 Volume.25 No. 6 p.421 ~ p.428
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Characteristics of organic pollutants in discharged industrial waste in Korea - Focuse on metallic and plastic manufacturing processes and wastewater treatment plants -
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Yeon Jin-Mo
Kang Young-Yeul
Kim Woo-Il
Shin Sun-Kyoung
Jeong Seong-Kyeong
Cho Yoon-A
Jin Na
Kim Min-Sun
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Abstract
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In this study, PCDD/PCDFs, PAHs and PCBs in wastes from metal, plastic and wastewater treatment facilities were analyzed. The concentrations of PCDD/PCDFs ranged from 7.37~432.20 ng-TEQ/kg in fly ash, 0.51~855.01 ng-TEQ/kg in incinerated ash and 0.37~385.81 ng-TEQ/kg in dust. Dioxin content was lower, compared to data in foreign countries. PAHs concentration was in the range of 0.0075~2.9225 mg/kg for process sludge and 0.0035~1.6716 mg/kg for wastewater sludge, which satisfied all of the two standards (Nap, Ant, B(a)F:4/0.8, Phen, B(a)A:5/1, Flt:10/2.5, B(a)P:4.5/0.9) of the Marine Environment Management Act. PAHs concentration in process sludge and wastewater sludge were slightly lower than those abroad. According to the analysis of seven types of PCBs (in comparison with the first standard, 0.15 mg/kg), concentration was found in the range of 0.0~0.65 mg/kg, while PCB-52, PCB-101, PCB-138, PCB-153 and PCB-180 isomers were detected in excessive value in some machine oil and hydraulic fluid.
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KEYWORD
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PCDD/PCDFs, PAHs, PCBs, sludge, dust, ash
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