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Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis

The production of electric and electronic products is one of the fastest growing businesses in the world. This scenario creates increasing amount of electric and electronic waste in our waste stream and it becomes a common problem facing by the world. In this study, the concentration profile behavio...

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Main Authors: K. S., Mohd Taha, Ali, Salmiaton, Sobri, Shafreeza
Format: Article
Language:English
Published: Asian Network for Scientific Information 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23075/1/Concentration%20profile%20behavioral%20from%20digestate%20television%20printed%20circuit%20board%20for%20metal%20recovery%20via%20electrolysis.pdf
http://psasir.upm.edu.my/id/eprint/23075/
http://www.scialert.net/abstract/?doi=jas.2011.2436.2439
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spelling my.upm.eprints.230752015-11-30T08:56:31Z http://psasir.upm.edu.my/id/eprint/23075/ Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis K. S., Mohd Taha Ali, Salmiaton Sobri, Shafreeza The production of electric and electronic products is one of the fastest growing businesses in the world. This scenario creates increasing amount of electric and electronic waste in our waste stream and it becomes a common problem facing by the world. In this study, the concentration profile behavioral of a television printed circuit board (PCB) is being investigated for future electrolysis treatment. Prior to that, a PCB is cut into several pieces and is digested via aqua-regia. The digestate from the digestion is analyzed using Inductively Coupled Plasma (ICP-MS) to estimate the present of metals with their range of corresponding concentration value and Thermogravimetric Analysis (TGA) is carried out to investigate the thermal decomposition of the filtrate from the digestion. The major metal elements that contain in the digestate are Cu (3,123-6,994 mg L-1), Pb and Fe and traces of two precious metal namely (6.3-13.8 mg L-1) and Au (0.2-5.4 mg L-1). Three degradation stages are observed in the TGA analysis (two days after ovenate at 102°C) namely moisture removal with 10.3 wt %, volatile matters removal with 14.45 wt.% and non-volatile removal with 16.7 wt%. The ash value after 1000oC heating in the TGA is almost 60 wt. %. An electrolysis process is then proposed in order to recover selectively valuable metals, such as Cu, Pb, Ni, Ag and Au. Asian Network for Scientific Information 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23075/1/Concentration%20profile%20behavioral%20from%20digestate%20television%20printed%20circuit%20board%20for%20metal%20recovery%20via%20electrolysis.pdf K. S., Mohd Taha and Ali, Salmiaton and Sobri, Shafreeza (2011) Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis. Journal of Applied Sciences, 11 (13). pp. 2436-2439. ISSN 1812-5654; ESSN: 1812-5662 http://www.scialert.net/abstract/?doi=jas.2011.2436.2439 10.3923/jas.2011.2436.2439
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The production of electric and electronic products is one of the fastest growing businesses in the world. This scenario creates increasing amount of electric and electronic waste in our waste stream and it becomes a common problem facing by the world. In this study, the concentration profile behavioral of a television printed circuit board (PCB) is being investigated for future electrolysis treatment. Prior to that, a PCB is cut into several pieces and is digested via aqua-regia. The digestate from the digestion is analyzed using Inductively Coupled Plasma (ICP-MS) to estimate the present of metals with their range of corresponding concentration value and Thermogravimetric Analysis (TGA) is carried out to investigate the thermal decomposition of the filtrate from the digestion. The major metal elements that contain in the digestate are Cu (3,123-6,994 mg L-1), Pb and Fe and traces of two precious metal namely (6.3-13.8 mg L-1) and Au (0.2-5.4 mg L-1). Three degradation stages are observed in the TGA analysis (two days after ovenate at 102°C) namely moisture removal with 10.3 wt %, volatile matters removal with 14.45 wt.% and non-volatile removal with 16.7 wt%. The ash value after 1000oC heating in the TGA is almost 60 wt. %. An electrolysis process is then proposed in order to recover selectively valuable metals, such as Cu, Pb, Ni, Ag and Au.
format Article
author K. S., Mohd Taha
Ali, Salmiaton
Sobri, Shafreeza
spellingShingle K. S., Mohd Taha
Ali, Salmiaton
Sobri, Shafreeza
Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
author_facet K. S., Mohd Taha
Ali, Salmiaton
Sobri, Shafreeza
author_sort K. S., Mohd Taha
title Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
title_short Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
title_full Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
title_fullStr Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
title_full_unstemmed Concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
title_sort concentration profile behavioral from digestate television printed circuit board for metal recovery via electrolysis
publisher Asian Network for Scientific Information
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23075/1/Concentration%20profile%20behavioral%20from%20digestate%20television%20printed%20circuit%20board%20for%20metal%20recovery%20via%20electrolysis.pdf
http://psasir.upm.edu.my/id/eprint/23075/
http://www.scialert.net/abstract/?doi=jas.2011.2436.2439
_version_ 1643827952989765632
score 13.211869

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