Co-firing of paper sludge with high-calorific industrial wastes in a pilot-scale nozzle-grate incinerator

Gyo Woo Lee, Sung Jun Lee, Jongsoo Jurng, Jungho Hwang

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16 Citations (Scopus)


Experiments on the co-firing of high-calorific industrial wastes with paper sludge were performed in a pilot-scale industrial waste incinerator with a nozzle-type grate system. The incineration capacity was approximately 160kg/h. The temporal variations in the temperatures and exhaust gas emissions were monitored and used as parameters for determining the desirable incineration conditions. The high CO emissions that were mainly due to the rapid vaporization of combustibles from high-calorific industrial wastes could be alleviated through the co-firing of sludge with the high-calorific industrial wastes. Because of the high nitrogen content in the sludge, the increase in the co-firing rate caused higher NO emissions in the flue gas. If the total calorific value of the feed was lower than 750,000kcal/h, for 25-30% of sludge co-firing, the temperature of gases exiting the secondary combustion chamber might be lower than that required by regulations.

Original languageEnglish
Pages (from-to)273-283
Number of pages11
JournalJournal of Hazardous Materials
Issue number3
Publication statusPublished - 2003 Aug 1

Bibliographical note

Funding Information:
The authors would like to thank the Ministry of Science and Technology, Korea, for their financial support.

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis


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