关键词: 清淤泥浆, 脱水, 固化, 泥处理, 泥利用

Abstract: In dredging projects, the water content of dredged mud is typically very high. The conventional method of dewatering and curing into mud cake has relatively low treatment efficiency. To address this issue, a study was conducted on the integrated dewatering-curing process of Taihu dredged mud. Ordinary Portland cement and calcium sulfoaluminate cement were chosen as curing materials, along with flocculants and plate and frame press filter technology. The study analyzed the dewatering performance of the slurry, the pattern of curing effect changes, and the loss of curing materials through specific resistance tests and curing tests. The pathway of curing material loss and its impact on the dewatering performance of the mud were discussed based on the fundamental property changes observed during the integrated process experiments. The results demonstrated that the integrated dewatering-curing process can enhance the dewatering characteristics by improving the particle size and compressibility of the dredged mud. The loss of curing material during the process was found to be less than 9%. The dewatering mud cake exhibited improved properties, resulting in effective curing effects. In practical engineering applications, the use of the integrated dewatering-curing process can enhance the efficiency of mud treatment.

Key words: dredged mud, dehydration, solidification, mud treatment, mud utilization