Environmental Sanitation Engineering ›› 2024, Vol. 32 ›› Issue (3): 54-58.doi: 10.19841/j.cnki.hjwsgc.2024.03.008

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Effect of Sludge Co-incineration on Flue Gas Purification System of Waste Incineration Power Plant:A Case Study of a Sludge Co-incineration Project

LI Juncheng, MAO Mengmei, LONG Jisheng   

  1. Shanghai SUS Environment Co. Ltd.
  • Online:2024-07-02 Published:2024-07-02

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Abstract: A sludge co-incineration project was taken as an example, the effect of mixed sludge on flue gas volume, pollutant concentration in flue gas, material consumption of flue gas purification and incineration ash production rate in waste incineration power plant were analyzed. The results showed that the change of flue gas volume was not significantly with the sludge co-incinerated. The SO2 concentration at the chimney outlet increased while it still could meet the emission standard. The concentration of other pollutants did not change significantly. For every 1% increase in sludge mixing ratio, slaked lime consumption increased by 0.14 kg/t (based on furnace materials), ammonia water consumption decreased by 0.22 kg/t (based on furnace materials), fly ash production rate increased by 0.04%, slag production rate decreased by 0.57%. Mixing one ton of sludge (moisture content was 78%) in this project would increase the operating cost of flue gas purification system by about 19.73 yuan.

Key words: sludge, co-incineration, waste incineration, flue gas purification, economic analysis

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