The total amount of annual eggshell waste is similar as the amount of plastics waste input in the oceans every year. Hence, the management of this eggshell waste is a major challenge. The last five years have seen a dramatic increase in research dedicated to the use of eggshell waste as source materials for the development of novel sustainable composites. This paper provides a review of the broad range of eggshell waste use in polymer, metal and ceramic composites, and in other applications such as adsorbents, catalysts, additives and functional materials. The different types and sources of CaCO₃ are presented. An overview is given about the eggshell treatment methods and parameters, which fall broadly in two categories, low temperature treatment of CaCO₃ particles, and high temperature treatment involving carbonization or calcination. The mechanical properties of structural composites with eggshell derived particles are discussed for polymer, metal and ceramic matrix materials. A brief view on commercialization is presented, and the paper concludes with the main findings and suggestions for future research developments.

每年蛋壳废物的总量与每年输入海洋的塑料废物量相似。因此，管理这种蛋壳废物是一项重大挑战。在过去五年中，致力于将蛋壳废物用作开发新型可持续复合材料的源材料的研究急剧增加。本文综述了蛋壳废弃物在聚合物、金属和陶瓷复合材料以及其他应用（如吸附剂、催化剂、添加剂和功能材料）中的广泛应用。介绍了 CaCO ₃的不同类型和来源。概述了蛋壳处理方法和参数，大致分为两类，CaCO _{3 的}低温处理颗粒，以及涉及碳化或煅烧的高温处理。针对聚合物、金属和陶瓷基体材料，讨论了具有蛋壳衍生颗粒的结构复合材料的机械性能。介绍了商业化的简要观点，论文最后提出了主要发现和对未来研究发展的建议。