Physical and chemical characteristics analysis of bottom ash and boiler tappings coming from the Burnaby Incinerator
department or school: Applied Science, Faculty of
department or school: Civil Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Muntasir, Sardar Yafee
issued: 2015-12-17T03:05:17
issued: 2015
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: The primary objective of this research was to update information collected some twenty years ago with a view to revisiting opportunities to enhance the utilization of the bottom ash, emanating from Metro Vancouver’s Burnaby Incinerator, from both as an aggregate and a source of recoverable metals. Bottom ash is made up of three stream; the material coming off the grates, grate siftings and boiler tappings. As review of the literature showed absence of information on boiler tappings characteristics, the opportunity was taken in this study to rectify that information gap to see if there was an opportunity for metal recovery. The work included the determination of grade size distribution, material composition and total metal concentration. In total 56 samples were analyzed; 32 bottom ash and 24 boiler tappings. Results from the grain size distribution samples showed that bottom ash is finer with about 5% fines retained on #200 sieve compared to about 2% some 20 years ago. Almost 50% of the bottom ash samples passed through No. 4 sieve compared to around 30% previously, making the bottom ash more amenable as an aggregate. Almost all (98%) of the boiler tappings passed through No. 4 sieve. Physical sorting of the coarser fractions showed ferrous and non-ferrous metals constitute about 22% of the bottom ash, glass and glass composites about 21% and ceramics about 25%, whereas 22 years ago it was 27%, 50% and 3% respectively. The secondary objective was to find out the dust characteristics. While processing dry bottom ash fractions, dust could come off it, which might contain heavy metals or silica, which may be hazardous when inhaled. To determine whether bottom ash fine fractions, if elevated to airborne concentrations, have substances in them of potential concern, total metals analysis was done on the size fractions less than 100 microns, which were considered to be in the inhalable sizes. Total metals analysis showed that bottom ash fines contain, as expected, a full s…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/55871
note: PHYSICAL AND CHEMICAL CHARACTERISTICS ANALYSIS OF BOTTOM ASH AND BOILER TAPPINGS COMING FROM THE BURNABY INCINERATOR by Sardar Yafee Muntasir B.A.Sc., Bangladesh University of Engineering and Technology, 2011 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in The Faculty of Graduate and Postdoctoral Studies (Civil Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) December 2015 © Sardar Yafee Muntasir, 2015ii Abstract The primary objective of this research was to update information collected some twenty years ago with a view to revisiting opportunities to enhance the utilization of the bottom ash, emanating from Metro Vancouver’s Burnaby Incinerator, from both as an aggregate and a source of recoverable metals. Bottom ash is made up of three stream; the material coming off the grates, grate siftings and boiler tappings. As review of the literature showed absence of information on boiler tappings characteristics, the opportunity was taken in this study to rectify that information gap to see if there was an opportunity for metal recovery. The work included the determination of grade size distribution, material composition and total metal concentration. In total 56 samples were analyzed; 32 bottom ash and 24 boiler tappings. Results from the grain size distribution samples showed that bottom ash is finer with about 5% fines retained on #200 sieve compared to about 2% some 20 years ago. Almost 50% of the bottom ash samples passed through No. 4 sieve compared to around 30% previously, making the bottom ash more amenable as an aggregate. Almost all (98%) of the boiler tappings passed through No. 4 sieve. Physical sorting of the coarser fractions showed ferrous and non-ferrous metals constitute about 22% of the bottom ash, glass and glass composites about 21% and ceramics about 25%, whereas 22 years ago it was 27%, 50% and 3% respectively. The secondary objective was to find out the dust characteristics. Wh…
has type: Thesis/Dissertation
date issued: 2016-02
is shown at: 10.14288/1.0221365
language: eng
degree discipline: Civil Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivs 2.5 Canada
rights URI: http://creativecommons.org/licenses/by-nc-nd/2.5/ca/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/55871