Separation of Heavy Metals From Contaminated Sediments Using Knelson Concentrator

Go, Byung-Hun; Kim, Jonggul; Jeon, Sanghee; Yoo, Kyoungkeun; Kim, Soo-Gon; Baek, S.

doi:10.12972/ksmer.2015.52.6.587

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…However, the migration law and physical property changes of mud caused by artificial irritation are primarily analysed from an experimental point of view, but few theoretical studies have been conducted. Only some scholars [8][9][10][11] have made in-depth discussions on the particle migration law of waves to riverbed from different angles, such as riverbed wave height, riverbed resistance and riverbed morphology, and further understood the movement law of sand waves. However, it is still lacking to combine probability statistics theory with sand wave motion research method to quantitatively study the migration law of disturbed particles, such as the flow field structure (particle motion state and migration process) and the probability of particle hovering position (internal seepage hovering or free fall hovering) after physical disturbance of silty mud.…”

Section: Introductionmentioning

confidence: 99%

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The study of the separation and deposition of dredging soil slurry under physical disturbance

Yanzhao¹

2023

PLoS ONE

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Most existing research uses experimental designs for testing, which cannot efficiently analyse the migration and sorting rules of particles in the disturbed slurry. Therefore, based on the fluidized bed flow film theory, a slurry flow film structure system is established according to the disturbance state of the fluid. On this basis, the particle size and distribution law of the disturbing force formed by slurry disturbance are analyzed, and the calculation model of single particle lift in the flowing film is also analyzed. On this basis, using Markov probability model, the probability of particle lifting and sorting between layers is theoretically deduced. Then, according to the particle ratio of the original mud, the settlement gradation of the particles in the disturbance is analyzed. It can also predict the separation degree of particle in natural turbulence, fluidized beds, and sludge mechanical dewatering. Finally, according to the particle flow software PFC (Particle Flow Code), the main influencing parameters (disturbing force and gradation) were verified and analyzed. The results show that the particle flow simulation results are in good agreement with the calculation results. The model of slurry membrane separation proposed in this paper can provide a basis for studying the mechanism of slurry disturbance separation and particle deposition.

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Section: Introductionmentioning

confidence: 99%

“…The suspension of fine particles is mainly caused by the collision between turbulent buoyancy and particles. In contrast, the floating of coarse particles needs to generate gradient pressure and spin lift to cause the suspension and separation of coarse particles [11].…”

mentioning

confidence: 99%

The study of the separation and deposition of dredging soil slurry under physical disturbance

Yanzhao¹

2023

PLoS ONE

View full text Add to dashboard Cite

show abstract

Separation of Heavy Metals From Contaminated Sediments Using Knelson Concentrator

Cited by 1 publication

References 6 publications

The study of the separation and deposition of dredging soil slurry under physical disturbance

The study of the separation and deposition of dredging soil slurry under physical disturbance

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