Journal of Korea Society of Waste Management (한국폐기물자원순환학회지)

Korea Society of Waste Management (한국폐기물자원순환학회)
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Evaluation of Decomposition Characteristics of Organochlorine Pesticides Using Thermal Method

열적방법을 활용한 유기염소계 폐농약의 분해 특성 평가

  • Kwon, Eun-Hye (Waste-to Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Yoon, Young-Sam (Waste-to Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Bea, Ji-Su (Waste-to Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Jeon, Tae-Wan (Waste-to Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Lee, Young-Ki (Waste-to Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research)
  • 권은혜 (국립환경과학원 폐자원에너지연구과) ;
  • 윤영삼 (국립환경과학원 폐자원에너지연구과) ;
  • 배지수 (국립환경과학원 폐자원에너지연구과) ;
  • 전태완 (국립환경과학원 폐자원에너지연구과) ;
  • 이영기 (국립환경과학원 폐자원에너지연구과)
  • Received : 2018.07.13
  • Accepted : 2018.10.30
  • Published : 2018.12.31
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Abstract

The Stockholm Convention, which was adopted in Sweden in 2001 to protect human health and the environment, includes regulations for Persistent Organic Pollutant Rotors such as toxic and bioaccumulatives. Currently, there are 28 types of materials. This prohibits and limits the production, use, and manufacture of products. Korea is a member of the Convention, and it is necessary to prepare management and treatment plans to address the POP trends. Thus, we experimentally investigate whether the environmentally stable incineration is achieved when the sample is thermally treated using the Lab-scale (1 kg/hr). The target samples is pesticides in liquid phase and solid phase. In this study, organic chlorinated pesticides and their thermal characteristics were analyzed. We calculated the theoretical air volume based on the element analysis results. Because the interior of the reactor is small, more than 10 times of the air ratio was injected. The retention time was set to at least 4 seconds using a margin. The incineration temperature was $850^{\circ}C$ and $1100^{\circ}C$. Thus, we experimentally investigated whether the environmentally stable incineration was achieved when the sample was thermally treated using the Lab-scale (1 kg/hr). We analyzed five types of exhaust gas; the 02 concentration was high, but the CO amount decreased. Complete combustion is difficult because of the small size of the furnace due to the nature of Lab-scale. The organic chlorine-containing pesticide had an average decomposition rate of 99.9935%. Considering the decomposition rates of organic chlorine-containing pesticide in this study, the incineration treatment at over 2 ton/hour, which is typical for a conventional incinerator, is possible. Considering the occurrence of dioxins and unintentional persistent organic pollutants, it can operate at more than $1,100^{\circ}C$.

Keywords

Acknowledgement

Supported by : 국립환경과학원

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