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May 1, 2026Scientia Sinica ChimicaOpen Access

Dewatering performance and mechanism of the combined processes with natural and synthetic polymer flocculants in conditioning of shield slurry

Dapeng Jiang Chunyuan Da Hu Yang

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Key Points

The aim is to explore the dewatering performance and mechanisms of combined flocculants for shield slurry management.
Tested two cationic starch-modified flocculants (NPC-1 and NPCG-1) alongside anionic polyacrylamide (APAM)
Compared single flocculants with their combinations in dewatering processes
Investigated floc structure and rheological properties to elucidate dewatering mechanisms.
Combination processes significantly improved dewatering performance compared to single flocculants
NPCG-1 showed superior dewatering effects, both alone and in combination with APAM
Mechanisms involved include charge neutralization, bridging, and enhanced floc structure.

Implication

Examines dewatering efficiency in shield slurry using natural and synthetic flocculants, suggesting a new approach for waste management.

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Cite This Study

Jiang et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf34dfaef96ed7f055d4a https://doi.org/10.1360/ssc-2026-0099

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