Behavior of hazardous and radioactive metals in a laboratory furnace and a demonstration-scale incinerator

Hee Chul Yang, J. H. Kim, W. Z. Oh, H. S. Park, Y. C. Seo

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The behaviors of hazardous and radioactive metals in analytical and real combustion conditions were observed to understand their vaporization and to predict their release into the atmosphere at a real incineration plant. In the laboratory furnace experiment, vaporization fluxes were obtained based on the measurement of weight losses with temperatures. Vaporization fluxes were compared to maximum theoretical fluxes obtained from the Herz-Knudsen's kinetic theory of gas. The vaporization coefficient, α, for volatile metal chloride appears to be a characteristic value of the evaporating substance, not varying with increasing temperatures. With some theoretical considerations on interfacial equilibrium, mass transfer coefficient of vaporization, KG, was determined as a function of absolute temperature. To evaluate the behavior of metals and radionuclides in an incinerator and off-gas treatment system, test burns of simulated waste containing several toxic metals and radioisotopes were performed at the demonstration-scale incineration plant. The previously analyzed characteristics of volatilization of hazardous metals and radioactive nuclides were used to explain their distributions in the demonstration plant. The decontamination factor for low-volatility species was above 105, which was equivalent to the removal efficiency of particulate matter in the plant. The factors for semivolatile components were in the range between 102 and 104, showing the strong dependency on volatility.

Original languageEnglish
Pages (from-to)299-311
Number of pages13
JournalEnvironmental Engineering Science
Volume15
Issue number4
DOIs
Publication statusPublished - 1998 Jan 1

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Fingerprint Dive into the research topics of 'Behavior of hazardous and radioactive metals in a laboratory furnace and a demonstration-scale incinerator'. Together they form a unique fingerprint.

  • Cite this