Volume 6 Issue 5
Sep.  2016
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HUANG Wenyou, MENG Yuedong, CHEN Mingzhou, LU Jie, LÜ Yonghong. Pilot Scale Study on Plasma Vitrification of Municipal Waste Incinerator Fly Ash[J]. Journal of Environmental Engineering Technology, 2016, 6(5): 501-508. doi: 10.3969/j.issn.1674-991X.2016.05.073
Citation: HUANG Wenyou, MENG Yuedong, CHEN Mingzhou, LU Jie, LÜ Yonghong. Pilot Scale Study on Plasma Vitrification of Municipal Waste Incinerator Fly Ash[J]. Journal of Environmental Engineering Technology, 2016, 6(5): 501-508. doi: 10.3969/j.issn.1674-991X.2016.05.073

Pilot Scale Study on Plasma Vitrification of Municipal Waste Incinerator Fly Ash

doi: 10.3969/j.issn.1674-991X.2016.05.073
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  • Corresponding author: HUANG Wenyou E-mail: chenmingzhou@cgnpc.com.cn
  • Received Date: 2016-02-19
  • Rev Recd Date: 2016-05-31
  • Publish Date: 2016-09-20
  • The plasma vitrification is one method of detoxification and disposal of municipal waste incinerator (MSWI) fly ash. To obtain key data for engineering application, MSWI fly ash was melted with a pilot scale plasma furnace at the conditions of continuous feeding and discharging. The properties of slag, secondary fly ash and off-gas were analyzed, and the energy consumption calculated. According to the test, the densities of slag quenched by water and air are 3.01 and 2.90 g/cm3, respectively. The leaching test results of heavy metals from the two kinds of slags were all below the limits in Identification standards for hazardous wastes-Identification for extraction toxicity (GB 5085.3-2007). During the pilot scale test, about 280 kg fly ash was melted, and energy consumption of fly ash melting was 1.12 kW·h/kg. The production ratio of secondary fly ash was 7.1%, with NaCl and KCl as its major components.

     

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