Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent

The effects of varying operating conditions on metals removal from aqueous solution using a novel nano-size composite adsorbent are reported in this paper. Characterization of the composite adsorbent material showed successful production of carbon nanotubes on granular activated carbon using 1 % n...

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Main Authors: Onundi, Yusuf Bamidele, Al-Mamun, Abdullah, Al-Khatib, Ma'an Fahmi Rashid, Al-Saadi, M. A., Muyibi, Suleyman Aremu
Format: Article
Language:English
Published: Center for Environmental and Energy Research and Studies 2011
Subjects:
Online Access:http://irep.iium.edu.my/6278/
http://irep.iium.edu.my/6278/1/45__1316088395_6278.pdf
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author Onundi, Yusuf Bamidele
Al-Mamun, Abdullah
Al-Khatib, Ma'an Fahmi Rashid
Al-Saadi, M. A.
Muyibi, Suleyman Aremu
author_facet Onundi, Yusuf Bamidele
Al-Mamun, Abdullah
Al-Khatib, Ma'an Fahmi Rashid
Al-Saadi, M. A.
Muyibi, Suleyman Aremu
author_sort Onundi, Yusuf Bamidele
building IIUM Repository
collection Online Access
description The effects of varying operating conditions on metals removal from aqueous solution using a novel nano-size composite adsorbent are reported in this paper. Characterization of the composite adsorbent material showed successful production of carbon nanotubes on granular activated carbon using 1 % nickel as catalyst. In the laboratory adsorption experiment, initial mixed metals concentration of 2.0 mg/L Cu2+, 1.5 mg/L Pb2+ and 0.8 mg/L Ni2+ were synthesized based on metals concentration from samples collected from a semiconductor industry effluent. The effects of operation conditions on metals removal using composite adsorbent were investigated. Experimental conditions resulting in optimal metals adsorption were observed at pH 5, 1 g/L dosage and 60 min contact time. It was noted that the percentage of metals removal at the equilibrium condition varied for each metal, with lead recording 99 %, copper 61 % and nickel 20 % , giving metal affinity trend of Pb2+ > Cu2+ > Ni2+ on the adsorbent. Langmuir’s adsorption isotherm model gave a higher R2 value of 0.93, 0.89 and 0.986 for copper, nickel and lead, respectively, over that of Freundlich model during the adsorption process of the three metals in matrix solution.
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spelling iium-62782024-05-02T08:18:17Z http://irep.iium.edu.my/6278/ Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent Onundi, Yusuf Bamidele Al-Mamun, Abdullah Al-Khatib, Ma'an Fahmi Rashid Al-Saadi, M. A. Muyibi, Suleyman Aremu TA170 Environmental engineering. Sustainable engineering The effects of varying operating conditions on metals removal from aqueous solution using a novel nano-size composite adsorbent are reported in this paper. Characterization of the composite adsorbent material showed successful production of carbon nanotubes on granular activated carbon using 1 % nickel as catalyst. In the laboratory adsorption experiment, initial mixed metals concentration of 2.0 mg/L Cu2+, 1.5 mg/L Pb2+ and 0.8 mg/L Ni2+ were synthesized based on metals concentration from samples collected from a semiconductor industry effluent. The effects of operation conditions on metals removal using composite adsorbent were investigated. Experimental conditions resulting in optimal metals adsorption were observed at pH 5, 1 g/L dosage and 60 min contact time. It was noted that the percentage of metals removal at the equilibrium condition varied for each metal, with lead recording 99 %, copper 61 % and nickel 20 % , giving metal affinity trend of Pb2+ > Cu2+ > Ni2+ on the adsorbent. Langmuir’s adsorption isotherm model gave a higher R2 value of 0.93, 0.89 and 0.986 for copper, nickel and lead, respectively, over that of Freundlich model during the adsorption process of the three metals in matrix solution. Center for Environmental and Energy Research and Studies 2011-09-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/6278/1/45__1316088395_6278.pdf Onundi, Yusuf Bamidele and Al-Mamun, Abdullah and Al-Khatib, Ma'an Fahmi Rashid and Al-Saadi, M. A. and Muyibi, Suleyman Aremu (2011) Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent. International Journal of Environmental Science and Technology , 8 (4). pp. 799-806. ISSN 1735-1472 (P), 1735-2630 (O) http://www.ijest.org/jufile?c2hvd1BERj01NDM=&ob=d10c2e9a4ff0aac8c862908caec7859f&fileName=full_text.pdf
spellingShingle TA170 Environmental engineering. Sustainable engineering
Onundi, Yusuf Bamidele
Al-Mamun, Abdullah
Al-Khatib, Ma'an Fahmi Rashid
Al-Saadi, M. A.
Muyibi, Suleyman Aremu
Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title_full Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title_fullStr Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title_full_unstemmed Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title_short Heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
title_sort heavy metals removal from synthetic wastewater by a novel nano-size composite adsorbent
topic TA170 Environmental engineering. Sustainable engineering
url http://irep.iium.edu.my/6278/
http://irep.iium.edu.my/6278/
http://irep.iium.edu.my/6278/1/45__1316088395_6278.pdf