Characteristics of soot in domestic waste incineration plant

  1. The flue gas has a large moisture content. This is because the original water content in the domestic waste is large, and some hydrocarbons also generate water vapor during combustion. Generally, the moisture content is 23 to 30%.
  2. Due to the complex composition of waste, the toxic and harmful components in the smoke generated after combustion are also complicated, including some trace metals such as mercury, cadmium, lead, molybdenum, chromium, nickel, copper. Moreover, the resulting particles have a finer particle size and a higher viscosity.
  3. The composition of the smoke is also complicated. Unlike coal-fired boilers, it not only contains O2, SOx, CO2, NOx, etc., but also acid gases such as HCl and HF, water vapor, and total hydrocarbons (THC). This must be carefully studied and considered when selecting the filter material.
  4. Carcinogens such as dioxins and furans may also be produced in the combustion, which is extremely harmful to the human body. It is generally necessary to spray activated carbon in front of the bag filter for adsorption.
  5. The soot has a fine particle size and a high viscosity.

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