Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling.

Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Research Abstract Details 

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Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Abstract Text:

I H Hwang,T Matsuto,N Tanaka,Y Sasaki,K Tanaami,

Carbonization is a kind of pyrolysis process to produce char from organic materials under an inert atmosphere. In this work, chars derived from various solid wastes were characterized from the standpoint of fuel recovery and pretreatment of waste before landfilling. Sixteen kinds of municipal and industrial solid wastes such as residential combustible wastes, non-combustible wastes, bulky wastes, construction and demolition wastes, auto shredder residue, and sludges were carbonized at 500 degrees C for 1h under nitrogen atmosphere. In order to evaluate the quality of char as fuel, proximate analysis and heating value were examined. The composition of raw waste had a significant influence on the quality of produced char. The higher the ratio of woody biomass in waste, the higher heating value of char produced. Moreover, an equation to estimate heating value of char was developed by using the weight fraction of fixed carbon and volatile matter in char. De-ashing and chlorine removal were performed to improve the quality of char. The pulverization and sieving method seems to be effective for separation of incombustibles such as metal rather than ash. Most char met a 0.5 wt% chlorine criterion for utilization as fuel in a shaft blast furnace after it was subjected to repeated water-washing. Carbonization could remove a considerable amount of organic matter from raw waste. In addition, the leaching of heavy metals such as chrome, cadmium, and lead appears to be significantly suppressed by carbonization regardless of the type of raw waste. From these results, carbonization could be considered as a pretreatment method for waste before landfilling, as well as for fuel recovery.

Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Publishing Authors By Initials

IH Hwang,T Matsuto,N Tanaka,Y Sasaki,K Tanaami,

For similar complex mixtures: waste products research abstracts see: complex mixtures: waste products research

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Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Waste management (New York, N.Y.)

VOLUME: 27

Page Numbers: 1155-66

Journal Abbreviation:

ISSN: 0956-053X

DAY: 22

MONTH: 08

YEAR: 2006

Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Information

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LANGUAGE: eng

NlmUniqueID: 9884362

Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Keywords Mesh Terms:

KEYWORDS: Waste Products

MESH TERMS: methods

Chemical & Substance for Abstract: Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling. Information

Substance Name: Chlorine

Registry Number: 7782-50-5

Grant and Affiliation Information for Characterization of char derived from various types of solid wastes from the standpoint of fuel recovery and pretreatment before landfilling.

AFFILIATION: Laboratory of Solid Waste Disposal Engineering, Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Sapporo 060-8628, Japan.

Country: United States

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MEDLINETA: Waste Manag

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