泥沙资源化利用技术研究进展

Research progress on the technologies for sediment utilization

泥沙堆积会导致河流淤积堵塞、防洪遇阻、水资源利用困难等问题,清淤后大量堆存不仅造成土地资源的巨大浪费,还会带来严重的生态环境和安全问题。泥沙具有资源属性,如何实现泥沙资源化综合利用,保护生态环境,已成为本领域的重要研究方向。近年来,国内外科研工作者针对流域泥沙的资源化利用进行了大量研究。系统介绍了泥沙在陶瓷、微晶玻璃、板材、砖、备防石、固化土、混凝土等建筑材料,以及在土壤修复、环境治理、采空区充填等方面的资源化利用技术研究进展,展望了泥沙资源化利用技术的发展方向。研究成果可为泥沙资源化利用技术的开发和应用提供参考。

Sediment accumulation results in many problems such as river blockage,the obstruction of flood control and difficulties in use of water resources.After dredging,massive stockpiling of sediment not only causes a tremendous waste of the limited land,but also brings about serious ecological&environmental and security issues.How to utilize the sediment as a resource for protecting ecological conditions has become the subject of a large number of research programs conducted by scientists at home and abroad in recent years.In this paper the applications of sediment in building materials such as ceramics,glass creamics,plates,bricks,anti-rocks,solidified soil,concrete as well as the research progress in soil reclamation,environmental management,filling of gob area were discussed.At last the development trend of sediment utilization technologies was prospected.The results from the research work can be provided as reference for development and application of sediment as a resource.