Mercury recovery from mercury-containing wastes using a vacuum thermal desorption system

Woo Rim Lee, Yujin Eom, Tai Gyu Lee

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Mercury (Hg)-containing waste from various industrial facilities is commonly treated by incineration or stabilization/solidification and retained in a landfill at a managed site. However, when highly concentrated Hg waste is treated using these methods, Hg is released into the atmosphere and soil environment. To eliminate these risks, Hg recovery technology using thermal treatment has been developed and commercialized to recover Hg from Hg-containing waste for safe disposal. Therefore, we developed Hg recovery equipment to treat Hg-containing waste under a vacuum of 6.67 kPa (abs) at 400 °C and recover the Hg. In addition, the dust generated from the waste was separated by controlling the temperature of the dust filtration unit to 230 °C. Additionally, water and Hg vapors were condensed in a condensation unit. The Hg removal rate after waste treatment was 96.75%, and the Hg recovery rate as elemental Hg was 75.23%.

Original languageEnglish
Pages (from-to)546-551
Number of pages6
JournalWaste Management
Volume60
DOIs
Publication statusPublished - 2017 Feb 1

All Science Journal Classification (ASJC) codes

  • Waste Management and Disposal

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