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1 2024

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Effect of bulk nanobubbles on flocculation of kaolin in the presence of cationic polyacrylamide

Sha Jie, Yuan Shuai, Chen Xinbo, Chen Wenmao, Wang Jin, Alheshibri Muidh, Bu Xiangning

Physicochemical Problems of Mineral Processing

2024

Vol. 60, iss. 2

art. no. 186729

The study explores the impact of nanobubble flotation technology on fine mineral processes, focusing on its interaction with cationic polyacrylamide (CPAM) in kaolin flocculation. Nanobubbles influence particle size and promote aggregation. Experimental procedures involve bulk nanobubble preparation, kaolin suspension, and CPAM solutions, with analysis of sedimentation rates, turbidity, and zeta potential. Results show accelerated sedimentation and reduced turbidity with nanobubbles compared to traditional methods. Zeta potential measurements and DLVO theory support nanobubbles' role in reducing electrostatic interaction, facilitating flocculation. This research advances understanding in nanobubble-mediated mineral processing, highlighting eco-friendly flocculants and practical implications for optimization.