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

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

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
Volume101
Issue number3
DOIs
Publication statusPublished - 2003 Aug 1

Fingerprint

Industrial Waste
Refuse incinerators
Industrial wastes
Sewage sludge
Sewage
industrial waste
Nozzles
sludge
Incineration
Gases
incineration
Calorific value
Volatilization
Temperature
vaporization
Carbon Monoxide
Combustion chambers
Exhaust gases
Gas emissions
Vaporization

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "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.",
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Co-firing of paper sludge with high-calorific industrial wastes in a pilot-scale nozzle-grate incinerator. / Lee, Gyo Woo; Lee, Sung Jun; Jurng, Jongsoo; Hwang, Jungho.

In: Journal of Hazardous Materials, Vol. 101, No. 3, 01.08.2003, p. 273-283.

Research output: Contribution to journalArticle

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