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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Emission Patterns and Formation Mechanism of PCDDs/PCDFs in Bleaching Wastewater(I) - Inlet and Outlet of the Chlorine Bleaching Stage(Acidic Wastewater) -

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.3, pp.266-273
Chung, Y.H.
Shin, S.K.
Jang, S.K.
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Abstract

One pulp manufacture facility was selected as surveying facilities to examine the discharged rate and generation mechanism of dioxin in bleaching stag wastewater. The analytical method was established in the wastewater and the sample was collected and analyzed. The outlet concentration of bleaching stage was increased 5 times for 2,3,7,8-TCDF and 7 times for OCDD, and the discharged ratio between PCDFs and PCDDs was surveyed about 2:3. The 2,3,7,8-TCDF and 2,3,7,8-TCDD were mainly detected in acid wastewater of bleaching stage that is known as the typical discharged patterns of chlorine bleaching stage.

keywords
acidic wastewater, PCDDs/PCDFs, bleaching stage


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