Pathways for Sustainable Utilization of Waste Chicken Eggshell
作者机构：Department of Mechanical and Industrial Engineering TechnologyUniversity of JohannesburgJohannesburgSouth Africa African Centre of ExcellenceACESPED University of NigeriaNsukkaNigeria Faculty of Engineering and the Built EnvironmentUniversity of JohannesburgJohannesburgSouth Africa
出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)
年 卷 期：2022年第10卷第8期
页 面：2217-2246页
核心收录：
学科分类：02[经济学] 0202[经济学-应用经济学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
主 题：Waste chicken eggshells catalysts food supplements medical applications waste utilization biofuel production
摘 要：Chicken eggshell is one of the most common wastes generated from households,restaurants and other food processing outlets.Waste Chicken Eggshells(WCES)also constitutes an environmental nuisance and ends up discarded at dumping site with no consideration of further usage.The main constituent of WCES is calcium carbonate from which calcium or calcium oxide can be extracted for various applications.This current effort reviews recently published literature on the diverse applications of WCES.The considered utilization avenues include catalysts for biofuel production,construction industry,wastewater purification,industrial sector,food industry,medical,and agricultural applications.The specific areas of application apart from the transesterification reactions include cement additives and replacement in concrete,asphalt binder,adsorbent of metals and dyes,production of hydroxyapatite,food supplement and fortification,dentistry,therapeutics,bone formation,drug delivery,poultry feeds as well as organic fertilizer.For most of the identified applications,the WCES is subjected to pretreatment and other modification techniques before utilization.The conversion of WCES to valuable products is a cost-effective,safe,environmentally friendly,non-toxic and viable means of waste disposal and utilization.More investigations are needed to further explore the benefits derivable from this bioresource.
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