Experimental research on emission and removal of dioxins in flue gas from a co-combustion of MSW and coal incinerator

Waste Manag. 2006;26(6):580-6. doi: 10.1016/j.wasman.2005.06.002. Epub 2005 Jul 28.

Abstract

This paper describes the experimental study of dioxins removal from flue gas from a co-combustion municipal solid waste and coal incinerator by means of a fluidized absorption tower and a fabric filter. A test rig has been set up. The flow rate of flue gas of the test rig is 150-2000 m3/h. The system was composed of a humidification and cooling system, an absorption tower, a demister, a slurry make-up tank, a desilter, a fabric filter and a measurement system. The total height of the absorption tower was 6.5m, and the diameter of the reactor pool was 1.2 m. When the absorbent was 1% limestone slurry, the recirculation ratio was 3, the jet rate was 5-15 m/s and the submerged depth of the bubbling pipe under the slurry was 0.14 m, the removal efficiency for dioxins was 99.35%. The concentration of dioxins in the treated flue gas was 0.1573 x 10(-13)kg/Nm3 and the concentration of oxygen was 11%. This concentration is comparable to the emission standards of other developed countries.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Air Pollutants / analysis*
  • Air Pollutants / chemistry
  • Air Pollution / prevention & control*
  • Carbon / chemistry*
  • Dioxins / analysis*
  • Dioxins / chemistry
  • Filtration
  • Gases
  • Incineration*
  • Refuse Disposal / methods*

Substances

  • Air Pollutants
  • Dioxins
  • Gases
  • Carbon