Fabrication and Analysis of an Effective Composite Desiccant for the Rapid Dehydration of Shield Waste Slurry

Huang, Xuquan; Xie, X. X.; Liu, Zhuo; Huang, Anna; Wang, Zaiqian; Wang, Ruzhu; Xin, Zhao

doi:10.1007/s12205-023-0129-6

Cited by 3 publications

(1 citation statement)

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“…At present, the main effective reduction treatment method for engineering waste mud uses * E-mail: 997124222@qq.com dehydration to reduce water content and external displacement [5][6][7]. The main dehydration methods include mechanical pressure filtration dehydration [8,9], direct solidification dehydration [10,11], and flocculant precipitation dehydration [12,13], but mechanical pressure filtration has high mechanical requirements and low treatment efficiency. Direct solidification dehydration is achieved by adding a curing agent to seal and transform a large amount of water into semi-solid or solid, increasing the transportation volume.…”

Section: Introductionmentioning

confidence: 99%

Research on closed-loop utilization of engineering waste mud in engineering sites

Zhan,

Zhao

2023

Materials Science-Poland

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The large amount of waste mud generated during construction projects makes it difficult to implement closed-loop on-site treatment, resulting in the inability to achieve zero emissions, which not only wastes land resources but also pollutes the environment. This article first studied the flocculation effect and mechanism of two flocculants. Then, the treated sediment was used to prepare fluidized solidified soil, and the effect of flocculants in the sediment on the performance of fluidized solidified soil was studied. Finally, this technology of flocculation and re-solidification was applied in engineering. The results showed that the composite effect of adding PAC flocculant first and then APAM flocculant in the mud had the best mud-water separation effect. The soil was combined with the flocculants to prepare fluidized solidified soil that can effectively improve the strength and water stability of the solidified soil. Through engineering applications, it has been proven that closed-loop utilization of engineering waste mud can be achieved on-site. Therefore, this work provides a new method for achieving zero emissions through closed-loop utilization of engineering waste mud on-site and innovative experience for the construction of “waste-free cities”.

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