Improved efficiency and slag quality at waste incineration plants

Investigations making it possible to evaluate and further develop concepts to improve electrical efficiency in a waste combustion plant were performed. Furthermore, it was the objective to investigate the possibilities of improving waste bottom ash leaching properties by use of a rotary kiln treatment.
Project description

Investigations making it possible to evaluate and further develop concepts to improve electrical efficiency in a waste combustion plant were performed. Furthermore, it was the objective to investigate the possibilities of improving waste bottom ash leaching properties by use of a rotary kiln treatment. The project work included construction of a bech-scale rotary kiln. As a result of the tests, the rotary kiln thermal treatment of bottom ashes can be recommended for reducing the leaching of Cu, Pb, Cl, Zn and DOC; however, an increased leaching of Cr and Mo should be expected. (Energy 11)

Results
Investigations making it possible to evaluate and further develop concepts to improve electrical efficiency in a waste combustion plant were performed. Furthermore, it was the objective to investigate the possibilities of improving waste bottom ash leaching properties by use of a rotary kiln treatment. The project work included construction of a bech-scale rotary kiln. As a result of the tests, the rotary kiln thermal treatment of bottom ashes can be recommended for reducing the leaching of Cu, Pb, Cl, Zn and DOC; however, an increased leaching of Cr and Mo should be expected. (Energy 11)

Key figures

Period:
2006 - 2010
Funding year:
2006
Own financial contribution:
0.00 mio. DKK
Grant:
4.07 mio. DKK
Funding rate:
100 %
Project budget:
4.07 mio. DKK

Category

Oprindelig title
Forbedret elvirkningsgrad og slagge kvalitet på affaldsforbrændingsanlæg
Programme
ForskEL
Technology
Bio and waste
Project type
Forskning
Case no.
6368

Participants

Danmarks Tekniske Universitet (DTU) (Main Responsible)
Partners and economy
Partner Subsidy Auto financing
BABCOCK & WILCOX VØLUND A/S
I/S VESTFORBRÆNDING

Contact

Kontakperson
Arendt Jensen, Peter
Comtact information
Danmarks Tekniske Universitet. Institut for Kemiteknik (DTU Kemiteknik). CHEC
Søltofts Plads, bygning 229
DK-2800 Kgs. Lyngby
www.chec.kt.dtu.dk
Arendt Jensen, Peter , 45252849, paj@kt.dtu.dk
Øvr. Partnere: Babcock & Wilcox Vølund A/S; Vestforbrænding I/S; Danmarks Tekniske Universitet. Institut for Vand og Miljøteknologi (DTU Miljø)
Contact email
paj@kt.dtu.dk

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