Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide

Lead (Pb), cadmium (Cd), and chromium (Cr) have been classified as heavy metals that have polluted the environment, mainly water sources. Therefore, the aim of this present study is to remove heavy metals, specifically Pb, Cd, and Cr ions from aqueous solutions using iron(III) oxide while, also cont...

Full description

Saved in:

Bibliographic Details
Main Author:	Munusamy, Shiva Shanthini
Format:	Thesis
Language:	English
Published:	2022
Subjects:	TD419-428 Water pollution
Online Access:	http://eprints.usm.my/58529/1/SHIVA%20SHANTHINI%20AP%20MUNUSAMY-24%20pages.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.58529
record_format	uketd_dc
spelling	my-usm-ep.585292023-05-18T01:18:36Z Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide 2022-09 Munusamy, Shiva Shanthini TD419-428 Water pollution Lead (Pb), cadmium (Cd), and chromium (Cr) have been classified as heavy metals that have polluted the environment, mainly water sources. Therefore, the aim of this present study is to remove heavy metals, specifically Pb, Cd, and Cr ions from aqueous solutions using iron(III) oxide while, also contributing to the reduction of waste products that might ultimately cause environmental pollution. This study was designed to adopt adsorption technique to remove Pb, Cd, and Cr ions from the aqueous solutions with the help of low-cost adsorbent, iron(III) oxide, Fe2O3. The concentrations of Pb, Cd, and Cr ions in the aqueous solutions were then detected by Flame Atomic Absorption Spectroscopy (FAAS) instrument. Various parameters such as calcination temperatures of adsorbents, adsorbent dosages, and contact time were used to carry out the removal process of Pb ions. The effects of adsorption on different types of heavy metals, Cd and Cr as well as repeatability of adsorbents were also studied in this research. The FTIR findings revealed that certain heavy metals were more likely to bind to these adsorbents due to the presence of crucial functional groups such as hydroxyl (-OH) and carbonyl (C=O). From this study, the optimum removal conditions were calcination temperature of adsorbents of 400ºC, 0.2 g dose of adsorbent, and 60 minutes of contact time. The results showed that Fe2O3 adsorbents removed 0.912 mg/L, 0.540 mg/L, and 0.489 mg/L of Pb, Cd, and Cr ions from the aqueous solutions, suggesting that it was more efficient towards the removal of Pb ions. Repeatability study demonstrated that Fe2O3 adsorbent can be reused for three consecutive periods and thus, has a great potential for eliminating heavy metals from aqueous solutions. Hence, this study showed that the adsorption technique using Fe2O3 adsorbents was capable of removing Pb, Cd, and Cr ions from aqueous solutions. The reduction of these heavy metals' concentration by adsorbents can also assist to preserve good water quality that does not exceed the permissible limit by WHO. 2022-09 Thesis http://eprints.usm.my/58529/ http://eprints.usm.my/58529/1/SHIVA%20SHANTHINI%20AP%20MUNUSAMY-24%20pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kesihatan
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TD419-428 Water pollution
spellingShingle	TD419-428 Water pollution Munusamy, Shiva Shanthini Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
description	Lead (Pb), cadmium (Cd), and chromium (Cr) have been classified as heavy metals that have polluted the environment, mainly water sources. Therefore, the aim of this present study is to remove heavy metals, specifically Pb, Cd, and Cr ions from aqueous solutions using iron(III) oxide while, also contributing to the reduction of waste products that might ultimately cause environmental pollution. This study was designed to adopt adsorption technique to remove Pb, Cd, and Cr ions from the aqueous solutions with the help of low-cost adsorbent, iron(III) oxide, Fe2O3. The concentrations of Pb, Cd, and Cr ions in the aqueous solutions were then detected by Flame Atomic Absorption Spectroscopy (FAAS) instrument. Various parameters such as calcination temperatures of adsorbents, adsorbent dosages, and contact time were used to carry out the removal process of Pb ions. The effects of adsorption on different types of heavy metals, Cd and Cr as well as repeatability of adsorbents were also studied in this research. The FTIR findings revealed that certain heavy metals were more likely to bind to these adsorbents due to the presence of crucial functional groups such as hydroxyl (-OH) and carbonyl (C=O). From this study, the optimum removal conditions were calcination temperature of adsorbents of 400ºC, 0.2 g dose of adsorbent, and 60 minutes of contact time. The results showed that Fe2O3 adsorbents removed 0.912 mg/L, 0.540 mg/L, and 0.489 mg/L of Pb, Cd, and Cr ions from the aqueous solutions, suggesting that it was more efficient towards the removal of Pb ions. Repeatability study demonstrated that Fe2O3 adsorbent can be reused for three consecutive periods and thus, has a great potential for eliminating heavy metals from aqueous solutions. Hence, this study showed that the adsorption technique using Fe2O3 adsorbents was capable of removing Pb, Cd, and Cr ions from aqueous solutions. The reduction of these heavy metals' concentration by adsorbents can also assist to preserve good water quality that does not exceed the permissible limit by WHO.
format	Thesis
qualification_level	Master's degree
author	Munusamy, Shiva Shanthini
author_facet	Munusamy, Shiva Shanthini
author_sort	Munusamy, Shiva Shanthini
title	Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
title_short	Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
title_full	Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
title_fullStr	Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
title_full_unstemmed	Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide
title_sort	removal of lead, cadmium, and chromium ions from aqueous solutions using iron (iii) oxide
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kesihatan
publishDate	2022
url	http://eprints.usm.my/58529/1/SHIVA%20SHANTHINI%20AP%20MUNUSAMY-24%20pages.pdf
_version_	1776101226389176320

Removal of lead, cadmium, and chromium ions from aqueous solutions using iron (III) oxide

Similar Items