Magnetic Hydroxyapatite for Batch Adsorption of Heavy Metals

In this work, magnetic hydroxyapatite or hydroxyapatite-iron (III) oxide (HAp-Fe 3 O 4 ) composite was used as the adsorbent of heavy metals and the performance was evaluated using the batch test. The presence of heavy metals in the effluent from wastewater discharge can be toxic to many organisms a...

Full description

Saved in:
Bibliographic Details
Published in:E3S Web of Conferences 2021-01, Vol.287, p.4005
Main Authors: Hui, Khee Chung, Kamal, Norashikin Ahmad, Sambudi, Nonni Soraya, Bilad, Muhammad Roil
Format: Article
Language:English
Subjects:
adsorbent
Adsorbents
Aqueous solutions
Cadmium
Calcium nitrate
Chemical precipitation
Chemical synthesis
Heavy metals
heavy metals and batch test
Hydroxyapatite
Iron oxides
magnetic hydroxyapatite
Magnetic properties
Metal ions
Performance evaluation
Pollutants
Wastewater
Wastewater discharges
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, magnetic hydroxyapatite or hydroxyapatite-iron (III) oxide (HAp-Fe 3 O 4 ) composite was used as the adsorbent of heavy metals and the performance was evaluated using the batch test. The presence of heavy metals in the effluent from wastewater discharge can be toxic to many organisms and can even lead to eye burns. Therefore, hydroxyapatite synthesized from the chemical precipitation of calcium nitrate tetrahydrate and diammonium hydrogen phosphate solutions is used to remove heavy metal in aqueous media. Magnetic properties of Fe 3 O 4 can help prevent formation of secondary pollutants caused by the loss of adsorbent. The synthesized HAp-Fe 3 O 4 can remove cadmium, zinc and lead effectively, which is up to 90% removal. Reusability study shows that the adsorbent could retain heavy metal ions even after four cycles. The percentage removal of heavy metals maintains at around 80% after four times of usage. The composite of HAp-Fe 3 O 4 demonstrates good performance and stability which is beneficial for heavy metal removal in the future.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202128704005