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U.S. Department of Energy
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Oxygen-enriched multiple-hearth sewage sludge incineration demonstration. Final report

Technical Report ·
OSTI ID:350497
Oxygen-enhanced multiple-hearth sludge incineration was the focus of a five-month joint study by Praxair and the New York State Energy Research and Development Authority. Testing and demonstration were conducted in Rochester NY, at Monroe County`s Frank E. Van Lare Sewage Treatment Plant. A simple retrofit of high-momentum oxygen lances created a convection hearth in which convective heat and mass transfer with the drying sludge were greatly enhanced, while hearth temperatures were moderated by the wet sludge to prevent overheating. Based on the results of short- and long-term controlled tests discussed in this report, oxygen enhancement of multiple-hearth sludge incinerators can be economically viable, with a savings between $30 and $60 per hour at Van Lare based upon increased sludge throughput and reduced fuel consumption.
Research Organization:
Praxair, Inc., Tarrytown, NY (United States); New York State Energy Research and Development Authority, Albany, NY (United States)
Sponsoring Organization:
New York State Energy Research and Development Authority, Albany, NY (United States)
OSTI ID:
350497
Report Number(s):
PB--99-136319/XAB
Country of Publication:
United States
Language:
English