Fořt Jan, Afolayan Ayodele, Kočí Václav, Scheinherrová Lenka, Jan Jiří, Borovec Jakub, Černý Robert
Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29, Prague 6, Czech Republic.
Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology and Biogeochemistry, Branišovská 1160/31, 370 05, České Budějovice, Czech Republic.
Heliyon. 2024 Dec 11;11(1):e41121. doi: 10.1016/j.heliyon.2024.e41121. eCollection 2025 Jan 15.
Human activities result in sediment accumulation, so the reservoirs gradually lose their functionality, impacting their ability to manage large flood inflows, supply water, and generate hydroelectric power. Therefore, periodic removal of sediments from water reservoirs is essential to maintain functionality. Notwithstanding, the management of dredged sediments is a multifaceted process that involves careful consideration of environmental, regulatory, and economic factors to ensure their responsibility and sustainable handling. In this regard, the search for synergies represents an important development factor in the current industrial world, which can bring several benefits, especially in the construction industry. By reusing sediments, the environmental externalities typically associated with building materials production can be reduced by transforming sediments from waste material into valuable resources. The consolidated knowledge in this review emphasizes the advances in the upcycling of dredged sediments into building materials in various ways, including aggregate production, brick manufacturing, traditional binder replacement, and alkaline activation. The provided summary of benefits, disadvantages, challenges, and future potential of freshwater dredged sediments (FDS) use can stimulate the rationalization of material flows, reduce the dependence on primary raw materials in the construction industry, and at the same time contribute to maintaining the functionality of water reservoirs.
人类活动导致沉积物堆积，因此水库逐渐失去其功能，影响其管理大洪水流入、供水和发电的能力。因此，定期清除水库中的沉积物对于维持其功能至关重要。尽管如此，疏浚沉积物的管理是一个多方面的过程，需要仔细考虑环境、监管和经济因素，以确保对其进行负责任和可持续的处理。在这方面，寻求协同效应是当前工业界的一个重要发展因素，它可以带来诸多益处，尤其是在建筑行业。通过再利用沉积物，将沉积物从废料转化为有价值的资源，可以减少通常与建筑材料生产相关的环境外部性。本综述中的综合知识强调了以各种方式将疏浚沉积物升级循环利用为建筑材料方面的进展，包括骨料生产、制砖、替代传统粘结剂以及碱激发。所提供的关于淡水疏浚沉积物（FDS）使用的益处、缺点、挑战和未来潜力的总结，可以促进物质流的合理化，减少建筑行业对初级原材料的依赖，同时有助于维持水库的功能。
