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U.S. Department of Energy
Office of Scientific and Technical Information

Method for incinerating sewage sludge

Patent ·
OSTI ID:5580331

A method and an apparatus are disclosed for incinerating dewatered sludge without using an auxiliary fuel, comprising pelletizing the partially dewatered sludge having a water content of 70 to 75%, drying the pellets with a heat source obtained by burning gases formed by dry-distillation and gasification, using part of the resulting dry-distilled gas in said drying step, dry-distilling the pellets by the sensible heat of a gas formed by gasification, gasifying the dry-distillation residues with air, water vapor and the remainder of said dry- distilled gas.

Assignee:
Shinryo Air Conditioning Co., Ltd. (Japan)
Patent Number(s):
US 4398476
OSTI ID:
5580331
Country of Publication:
United States
Language:
English