dorsal/arxiv
View SchemaThe effects of solid-liquid interfacial tension on the settlement of sediment flocs
| Authors | Zhao Jianglin |
|---|---|
| Categories | |
| ArXiv ID | physics/0609182 |
| URL | https://arxiv.org/abs/physics/0609182 |
Abstract
In this paper, the effects of interfacial tension between the sediment solid particle and liquid on the settlement of sediment flocs are investigated. After a discussion of mechanical and physical chemistry, we give a settling velocity expression including such dynamical information of the floc growth as interfacial tension and primary particle size \textit{etc.}. The resulting expression indicates the average settling velocity of sediment flocs increases with increasing solid-liquid interfacial tension in a form of power law and deceases with the primary particle size. We report on a general method for analyzing settling behaviors of sediment flocs under different flocculation conditions and verify the rationality of the assumption of tension-induced flocculation by fitting typical experimental data to the electrolyte concentration-dependent sedimentation model which can follow from the relationship between interfacial tension and electrolyte concentration.
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"abstract": "In this paper, the effects of interfacial tension between the sediment solid\nparticle and liquid on the settlement of sediment flocs are investigated. After\na discussion of mechanical and physical chemistry, we give a settling velocity\nexpression including such dynamical information of the floc growth as\ninterfacial tension and primary particle size \\textit{etc.}. The resulting\nexpression indicates the average settling velocity of sediment flocs increases\nwith increasing solid-liquid interfacial tension in a form of power law and\ndeceases with the primary particle size. We report on a general method for\nanalyzing settling behaviors of sediment flocs under different flocculation\nconditions and verify the rationality of the assumption of tension-induced\nflocculation by fitting typical experimental data to the electrolyte\nconcentration-dependent sedimentation model which can follow from the\nrelationship between interfacial tension and electrolyte concentration.",
"arxiv_id": "physics/0609182",
"authors": [
"Zhao Jianglin"
],
"categories": [
"physics.flu-dyn",
"physics.chem-ph"
],
"title": "The effects of solid-liquid interfacial tension on the settlement of sediment flocs",
"url": "https://arxiv.org/abs/physics/0609182"
},
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