CHINESE JOURNAL OF ENERGETIC MATERIALS
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Restoration of TNT Red Water Contaminated Soil Using High Temperature Sintering Resourcing Technology
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1.Beijing North Energy Conservation and Environmental Protection Co., Ltd., Beijing 100070, China;2.Yuhuan Environmental Science and Technology Co., Ltd., Shijiazhuang 050000, China;3.Gansu Yinguang Chemical Industry Group Co., Ltd., Baiyin 730090, China

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    Abstract:

    To select an optimum treatment technology to solve the TNT red water contaminated soil problem in explosive industry, the high temperature sintering resourcing technology was developed. Contaminated soil and clay soil were mixed in a volume ratio of 4∶6, dried for 26 h in the drying section of a tunnel kiln by residual heat from the roasting section, and then roasted for 24 h in the roasting section at 1100 ℃. Sintering tail gas of the tunnel kiln was emitted into ambient air from its 43 m high funnel after treatment of desulfurization and denitrification facilities. Finished bricks were cooled down naturally out of the kiln. The featured pollutant-dinitrotoluene sulfonate in contaminated soil is completely decomposed, sintering tail gas reaches the emission standards, resource-based products meet the quality standard of building material bricks without any featured pollutant residue, and soil restoration target (the content of dinitrotoluene sulfonate in soil less than 100 mg·kg-1) is met. The effectiveness and practicability of the high temperature sintering resourcing technology in TNT red water contaminated soil restoration was verified through engineering application.

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姜鑫,刘珣,张峥,等.采用高温烧结资源化技术修复TNT红水污染土壤[J].含能材料,2021,29(6):552-556.
JIANG Xin, LIU Xun, ZHANG Zheng, et al. Restoration of TNT Red Water Contaminated Soil Using High Temperature Sintering Resourcing Technology[J]. Chinese Journal of Energetic Materials,2021,29(6):552-556.

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History
  • Received:November 09,2020
  • Revised:April 25,2021
  • Adopted:April 15,2021
  • Online: April 19,2021
  • Published: June 25,2021