Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/147853
Title: EXPLORATION OF ECONOMIC AND ENVIRONMENTALLY BENEFICIAL APPROACH FOR WASTE SHELL FRACTIONATION
Authors: YANG HUIYING
Keywords: Biomass, Green chemistry
Issue Date: 29-Aug-2018
Citation: YANG HUIYING (2018-08-29). EXPLORATION OF ECONOMIC AND ENVIRONMENTALLY BENEFICIAL APPROACH FOR WASTE SHELL FRACTIONATION. ScholarBank@NUS Repository.
Abstract: In the last decades, the global fish production has grown vigorously. With such tremendous production, huge quantities of wastes are generated annually, especially the shells from crustacean animals. Every year, around 6-8 million tons of crustacean shells are produced globally-about 1.5 million tons in Southeast Asia alone. Unfortunately, the tremendous amount of crustacean shells are dumped or in landfill without utilization. Nevertheless, a limited portion is used to produce chitin and its derivatives (e.g. chitosan) via problematic methods. Herein, we put forward a newly developed method for the fractionation of waste shells to address the issues of the current industrial extraction method. The proposed method is economically and environmentally beneficial with high efficiency by using water or urea solutions for deproteinization and high pressure CO2 for demineralization. The chitin product after the process has a high purity which was systematically characterized by various techniques. Life cycle analysis has been conducted to examine the economic and environmental impacts of the developed method in comparison with the conventional one.
URI: http://scholarbank.nus.edu.sg/handle/10635/147853
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
YANG_HY.pdf1.93 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

13
checked on Oct 18, 2018

Download(s)

8
checked on Oct 18, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.