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Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier

Liquid semiconductor waste has become a serious problem to the environment due to the toxicity of heavy metals in the wastewater. However the monetary value of precious metals such as gold, silver and palladium has become a great concern nowadays. Therefore this study is investigating the recovery o...

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Main Authors: Othman, Norasikin, Mohamed Noah, Norul Fatiha, Harruddin, Norlisa, Abdullah, Nurul Ashida, Bachok, Siti Khadijah
Format: Article
Published: Penerbit UTM Press 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/62547/
http://dx.doi.org/10.11113/jt.v69.3386
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spelling my.utm.625472017-06-18T06:12:26Z http://eprints.utm.my/id/eprint/62547/ Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier Othman, Norasikin Mohamed Noah, Norul Fatiha Harruddin, Norlisa Abdullah, Nurul Ashida Bachok, Siti Khadijah TP Chemical technology Liquid semiconductor waste has become a serious problem to the environment due to the toxicity of heavy metals in the wastewater. However the monetary value of precious metals such as gold, silver and palladium has become a great concern nowadays. Therefore this study is investigating the recovery of palladium by emulsion liquid membrane (ELM) process using di-(2-ethylhexyl) phosphoric acid (D2EHPA) as a carrier. The important parameters affecting the extraction of palladium such as concentrations of carrier and stripping agents, extraction time and treat ratio were investigate. This experiment was conducted using a mixer-settler in a batch system. The results showed that more than 90% of palladium was extracted using 0.05M D2EHPA, 0.1 M H2SO4 as a stripping agent, 5 minutes extraction time, and 1:3 treat ratio. However, the study on emulsion stability showed unstable results due to the leakage and swelling occurrence during the extraction process. As a conclusion, the research shows that ELM has the potential to extract palladium from simulated waste solution using D2EHPA as a mobile carrier. Penerbit UTM Press 2014 Article PeerReviewed Othman, Norasikin and Mohamed Noah, Norul Fatiha and Harruddin, Norlisa and Abdullah, Nurul Ashida and Bachok, Siti Khadijah (2014) Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier. Jurnal Teknologi (Sciences and Engineering), 69 (9). pp. 1-4. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v69.3386 DOI:10.11113/jt.v69.3386
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Othman, Norasikin
Mohamed Noah, Norul Fatiha
Harruddin, Norlisa
Abdullah, Nurul Ashida
Bachok, Siti Khadijah
Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
description Liquid semiconductor waste has become a serious problem to the environment due to the toxicity of heavy metals in the wastewater. However the monetary value of precious metals such as gold, silver and palladium has become a great concern nowadays. Therefore this study is investigating the recovery of palladium by emulsion liquid membrane (ELM) process using di-(2-ethylhexyl) phosphoric acid (D2EHPA) as a carrier. The important parameters affecting the extraction of palladium such as concentrations of carrier and stripping agents, extraction time and treat ratio were investigate. This experiment was conducted using a mixer-settler in a batch system. The results showed that more than 90% of palladium was extracted using 0.05M D2EHPA, 0.1 M H2SO4 as a stripping agent, 5 minutes extraction time, and 1:3 treat ratio. However, the study on emulsion stability showed unstable results due to the leakage and swelling occurrence during the extraction process. As a conclusion, the research shows that ELM has the potential to extract palladium from simulated waste solution using D2EHPA as a mobile carrier.
format Article
author Othman, Norasikin
Mohamed Noah, Norul Fatiha
Harruddin, Norlisa
Abdullah, Nurul Ashida
Bachok, Siti Khadijah
author_facet Othman, Norasikin
Mohamed Noah, Norul Fatiha
Harruddin, Norlisa
Abdullah, Nurul Ashida
Bachok, Siti Khadijah
author_sort Othman, Norasikin
title Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
title_short Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
title_full Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
title_fullStr Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
title_full_unstemmed Selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using D2EHPA as a mobile carrier
title_sort selective extraction of palladium from simulated liquid waste solution by emulsion liquid membrane process using d2ehpa as a mobile carrier
publisher Penerbit UTM Press
publishDate 2014
url http://eprints.utm.my/id/eprint/62547/
http://dx.doi.org/10.11113/jt.v69.3386
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score 13.211869

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