Feasibility, system design, and economic evaluation of radiolytic degradation of 2,3,7,8-tetrachlorodibenzo-p-dioxin on soil

Roger J. Hilarides, Kimberly A. Gray*, Joseph Guzzetta, Norma Cortellucci, Christopher Sommer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This research shows that gamma irradiation is both a technically and economically feasible method to degrade chlorinated dioxins on soil. Approximately 99% degradation of dioxin on a model soil was achieved using gamma radiation at a dose of 800 kGy. In addition, this research determined the initial pathway of destruction, identified several controlling parameters, and developed a mass balance on degradation. The general applicability of this model behavior was successfully tested in a native contaminated soil where nearly 75% of the dioxin was destroyed at a dose of 450 kGy. Through a theoretical and conceptual understanding of radiolysis in soil, a sound basis for engineering design was established. Gamma radiation sources are commercially available, and this research outlines a new application of an established technology. A number of irradiator designs are proposed, and preliminary economic estimates are made to demonstrate that radiolysis can be a real alternative to incineration.

Original languageEnglish (US)
Pages (from-to)178-187
Number of pages10
JournalWater Environment Research
Volume68
Issue number2
DOIs
StatePublished - Jan 1 1996

Keywords

  • dioxin
  • gamma irradiation
  • hazardous waste
  • soil

ASJC Scopus subject areas

  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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