Formation of PCDD/Fs from heating polyethylene with metal chlorides in the presence of air.

نویسندگان

  • Ming-Hui Zheng
  • Peng-Yan Liu
  • Ming-Jun Piao
  • Wen-Bin Liu
  • Xiao-Bai Xu
چکیده

This paper investigated the effect of inorganic chlorine on the formation of PCDD/Fs from heating polyethylene (PE) in the presence of air. There was an increase in the formation of PCDD/Fs with an increasing amount of metal chlorides except NaCl, which was not observed to have any effects on the formation of PCDD/Fs without the presence of catalysts. Although the levels of PCDD/Fs formation in this study have no relevance to full scale municipal solid waste incineration, the results of the present experiments can aid understanding of the mechanisms of the formation of PCDD/Fs from heating PE in the presence of metal chlorides.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Polychlorinated dibenzo-p-dioxins and dibenzofurans formed from sucralose at high temperatures

Sucralose is a widely-used artificial high-intensity sweetener. Although doubts have been raised about the safety of sucralose by several researchers, it can still be found in a broad range of foods and beverages worldwide, including in baked goods. Sucralose may decompose at high temperatures, and participate in chlorination reactions, generating highly toxic compounds. Here, we demonstrate th...

متن کامل

Identification the Content of the Windbox Dust Related to the Formation of PCDD/Fs during the Iron Ore Sintering Process

This study measured the contents of the ionic and elemental constituents, and the chemical compounds containing in windbox (WB) dusts collected from a commercial iron ore sintering plant, then the results were used to identify possible PCDD/Fs formation pathways in the WB. We found that the abundance in both KCl and NaCl may provide a suitable condition for de novo synthesis of PCDD/Fs in the W...

متن کامل

Influence of a municipal solid waste incinerator on ambient air and soil PCDD/Fs levels.

To examine the influence of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) emissions from a municipal solid waste incinerator (MSWI) on the environment, we measured the levels of PCDD/Fs in ambient air and soil samples collected near a MSWI in Bucheon, Korea. The PCDD/Fs concentrations in the ambient air samples ranged from 0.22 to 1.16 pg I-TEQm(-3) (13.39-75.16 ...

متن کامل

Decomposition of Two Types of Electric Wires

12 Combustion runs at 700 oC in a horizontal laboratory furnace were carried out on two 13 different electric wires (PVC and halogen-free wire). Tests were performed in the 14 presence and in the absence of the metal conductor of the wires. The analyses of the 15 polycyclic aromatic hydrocarbons (PAHs), chlorobenzenes (CBzs), chlorophenols 16 (CPhs), monoto octa-chlorodibenzo-p-dioxin and diben...

متن کامل

PCDD/Fs levels in indoor environments and blood of workers of three municipal waste incinerators in Taiwan.

This study monitored ambient air concentrations of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in three municipal waste incineration plants. Blood PCDD/Fs levels of 133 workers randomly selected from these plants were also measured. The associations between workers' blood PCDD/Fs concentrations and occupational exposures to PCDD/Fs were assessed. Means of air P...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The Science of the total environment

دوره 328 1-3  شماره 

صفحات  -

تاریخ انتشار 2004