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Adsorption studies of heavy metal solutions using corn cobs adsorbents

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Main Author: Lim, Hooi Peng
Other Authors: Mashitah Hasan
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Heavy metal
Adsorption
Corn cobs
Heavy metals
Environmental pollution
Wastewater pollution
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/23956
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spelling my.unimap-239562019-03-12T01:22:38Z Adsorption studies of heavy metal solutions using corn cobs adsorbents Lim, Hooi Peng Mashitah Hasan Heavy metal Adsorption Corn cobs Heavy metals Environmental pollution Wastewater pollution Access is limited to UniMAP community. In this study, corn cobs were utilized as an adsorbent to remove heavy metals (Cu and Zn) from aqueous solution. The influences of initial Cu (II) and Zn (II) ion concentration (25 - 200 ppm) with contact time, temperature (303K, 313K and 323K) and pH (2 - 6) have been investigated. Experimental tests were conducted in a batch process and percentage of metal ions removal was analyzed by using Atomic Absorption Spectrometer (AAS) with dosage 0.6g and 100mL of metal solution. The adsorption studies were represented by Isotherm, Kinetic and Thermodynamic analysis. Scanning Electron Microscopy (SEM) was used to examine surface morphology and functional group of surface was conducted by using FT-IR techniques. Maximum percentage of metal ions removal for untreated corn cobs with copper achieved 80.95% at 323K and 39.8% for zinc at303K. For treated corn cobs with copper achieved at 58.64% at 323K and 20.8% at 303K for zinc. From isotherm studies, untreated corn cob applied for heterogeneous surface and multilayer sorption, while treated corn is applied to homogeneous surface and monolayer adsorption. Kinetic studies depicted that pseudo second order is better than pseudo first order. Thermodynamic depicted adsorption is non-spontaneous and undergo endothermic with irreversible process. 2013-03-07T02:21:50Z 2013-03-07T02:21:50Z 2012-05 Learning Object http://hdl.handle.net/123456789/23956 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Heavy metal
Adsorption
Corn cobs
Heavy metals
Environmental pollution
Wastewater pollution
spellingShingle Heavy metal
Adsorption
Corn cobs
Heavy metals
Environmental pollution
Wastewater pollution
Lim, Hooi Peng
Adsorption studies of heavy metal solutions using corn cobs adsorbents
description Access is limited to UniMAP community.
author2 Mashitah Hasan
author_facet Mashitah Hasan
Lim, Hooi Peng
format Learning Object
author Lim, Hooi Peng
author_sort Lim, Hooi Peng
title Adsorption studies of heavy metal solutions using corn cobs adsorbents
title_short Adsorption studies of heavy metal solutions using corn cobs adsorbents
title_full Adsorption studies of heavy metal solutions using corn cobs adsorbents
title_fullStr Adsorption studies of heavy metal solutions using corn cobs adsorbents
title_full_unstemmed Adsorption studies of heavy metal solutions using corn cobs adsorbents
title_sort adsorption studies of heavy metal solutions using corn cobs adsorbents
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/23956
_version_ 1643805709008109568
score 13.223943

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