Characterization of chitosan as a coagulant for heavy metals treatment in turbid seawater using scanning electron microscope (SEM)

Wan Azhal, Wan Nur Syazwani and Othman, Siti Amira (2020) Characterization of chitosan as a coagulant for heavy metals treatment in turbid seawater using scanning electron microscope (SEM). In: Heavy Metals in the Environment and Life: Presence and Removal. Penerbit UTHM, pp. 58-64. ISBN 978-967-2916-35-2

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Abstract

Chitosan is a natural polysaccharide that can be derived from deacetylation of chitin which is a natural component obtained from the shell of crustaceans. Chitosan was claimed to have the ability to act as a coagulant to remove water turbidity. Turbid sea water indicate the presence of other element or compound in the sea water which could affect the quality of sea water and disrupt the living of aquatic system. Thus, the purpose of this research were to study the role of chitosan as a coagulant in the treatment of turbid sea water and to study the characteristics of chitosan by using SEM-EDX. The mass of chitosan and turbidity of sea water before and after water treatment were measured and observed respectively. Scanning Electron Microscope (SEM) are used to observe morphology of chitosan and sea water. Energy dispersive X-Ray was used to determine the element presence in the samples. From the data of this research, chitosan only dissolved in hydrochloric acid and showed the highest turbidity removal from sea water of pH 9.0. The morphology of chitosan for pre and post water treatment changed due to the coagulation that occurred.

Item Type:	Book Section
Uncontrolled Keywords:	Heavy metals--Environmental aspects; Runoff--Purification--Heavy metals removal; Water--Pollution; Factory and trade waste--Environmental aspects; Pollution--Experiments; Government publications--Malaysia
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes > TD419-428 Water pollution
Divisions:	Faculty of Applied Science and Technology > Department of Physics and Chemistry
Depositing User:	Mrs. Siti Noraida Miskan
Date Deposited:	03 Jan 2022 03:45
Last Modified:	03 Jan 2022 03:45
URI:	http://eprints.uthm.edu.my/id/eprint/3047

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