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Non-Energy Circular Economy Potential of Rice Husks: A Techno-Eco-Environmental Assessment.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Non-Energy Circular Economy Potential of Rice Husks: A Techno-Eco-Environmental Assessment.
Author:	Yeboah, Winfred Oppong.
Published:	Ann Arbor : ProQuest Dissertations & Theses, 2023
Description:	175 p.
Notes:	Source: Masters Abstracts International, Volume: 85-03.
Notes:	Advisor: Wang, Dongyi.
Contained By:	Masters Abstracts International85-03.
Subject:	Agricultural engineering.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30575650
ISBN:	9798380172202

Non-Energy Circular Economy Potential of Rice Husks: A Techno-Eco-Environmental Assessment.
Yeboah, Winfred Oppong.

Non-Energy Circular Economy Potential of Rice Husks: A Techno-Eco-Environmental Assessment. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 175 p.

Source: Masters Abstracts International, Volume: 85-03.

Thesis (M.S.)--University of Arkansas, 2023.

This item must not be sold to any third party vendors.

The non-energy circular bioeconomy potential of rice husks was examined via sustainability assessments, namely life cycle assessment (LCA), life cycle impact cost assessment (LCICA), and techno-economic assessment (TEA). The study was conducted with three objectives. The first objective was to review previous studies on the non-energy utilization potential of rice husks by the method of meta-analysis. This review followed a systematic approach where research papers were collected following a defined set of criteria. The study revealed 16 key utilization pathways, all of which showed promising results. However, a comprehensive sustainability assessment was lacking in all of the pathways. The second objective was to examine the circular bioeconomy potential of rice husks as a resource for bioplastic production. This study evaluated the techno-environmental assessment of three bioplastics, namely carboxymethyl cellulose, cellulose acetate, and cellulose nitrate relative to rice husks combustion. This provided information on the environmental impacts and the environmental impact costs of all three bioplastics. The result suggested that carboxymethylcellulose would be the most sustainable pathway, reducing the impact on human health and the cost of open-air combustion by 82% and 74%, respectively. The third objective was to examine the sustainable production of xylo-oligosaccharide from rice husk via a techno-economic and an environmental performance assessment. The study examined two production methods: autohydrolysis and enzymatic hydrolysis, considering a pilot and a large production scale for each. The results revealed that autohydrolysis is the best method to produce xylo-oligosaccharides, considering the damage to the environment and human health, and profitability (net profits of

ISBN: 9798380172202Subjects--Topical Terms:

766072
Agricultural engineering.
Subjects--Index Terms:

Rice circularity

Non-Energy Circular Economy Potential of Rice Husks: A Techno-Eco-Environmental Assessment.
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506 $a This item must not be sold to any third party vendors.
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520 $a The non-energy circular bioeconomy potential of rice husks was examined via sustainability assessments, namely life cycle assessment (LCA), life cycle impact cost assessment (LCICA), and techno-economic assessment (TEA). The study was conducted with three objectives. The first objective was to review previous studies on the non-energy utilization potential of rice husks by the method of meta-analysis. This review followed a systematic approach where research papers were collected following a defined set of criteria. The study revealed 16 key utilization pathways, all of which showed promising results. However, a comprehensive sustainability assessment was lacking in all of the pathways. The second objective was to examine the circular bioeconomy potential of rice husks as a resource for bioplastic production. This study evaluated the techno-environmental assessment of three bioplastics, namely carboxymethyl cellulose, cellulose acetate, and cellulose nitrate relative to rice husks combustion. This provided information on the environmental impacts and the environmental impact costs of all three bioplastics. The result suggested that carboxymethylcellulose would be the most sustainable pathway, reducing the impact on human health and the cost of open-air combustion by 82% and 74%, respectively. The third objective was to examine the sustainable production of xylo-oligosaccharide from rice husk via a techno-economic and an environmental performance assessment. The study examined two production methods: autohydrolysis and enzymatic hydrolysis, considering a pilot and a large production scale for each. The results revealed that autohydrolysis is the best method to produce xylo-oligosaccharides, considering the damage to the environment and human health, and profitability (net profits of $ 7.1M and $ 42.4M for pilot and large-scale setups) hence, it is viable to thrive in the market.
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