Influence of the hydrophobicity of mineral particles on the energy of interaction with air bubbles during flotation. Part I. Interaction within framework of extended DLVO theory

2012 ◽  
Vol 47 (9-10) ◽  
pp. 575-579
Author(s):  
V. E. Vigdergauz ◽  
G. Yu. Golberg
Keyword(s):  
Dlvo Theory ◽  
Air Bubbles ◽  
Mineral Particles ◽  
Extended Dlvo Theory ◽  
Energy Of Interaction

scholarly journals Communication: On the Stability and Necessary Electrophoretic Mobility of Bare Oil Nanodroplets in Water

2020 ◽  
Author(s):  
Saranya Pullanchery ◽  
Sergey Kulik ◽  
halil okur ◽  
Hilton. B. de Aguiar ◽  
Sylvie Roke
Keyword(s):  
Electrophoretic Mobility ◽  
Dlvo Theory ◽  
Air Bubbles ◽  
Oil Droplets ◽  
Cleaning Procedure ◽  
Charged Droplets ◽  
Oil In Water ◽  
The Creation ◽  
The Stability ◽  
The 19Th Century

Hydrophobic oil droplets, particles and air bubbles can be dispersed in water as kinetically stabilized dispersions. It has been established since the 19th century that such objects harbor a negative electrostatic potential roughly twice larger than the thermal energy. The source of this charge continues to be one of the core observations in relation to hydrophobicity and its molecular explanation is still debated. What is clear though, is that the stabilizing interaction in these systems is understood in terms of electrostatic repulsion via DLVO theory. Recent work [Carpenter et al., PNAS 116 (2019) 9214] has added another element into the discussion, reporting the creation of bare near-zero charged droplets of oil in water that are stable for several days. Key to the creation of the droplets is a rigorous glassware cleaning procedure. Here, we investigate these conclusions and show that the cleaning procedure of glassware has no influence on the electrophoretic mobility of the droplets, that oil droplets with near-zero charge are unstable, and provide an alternative possible explanation for the observations involving glass surface chemistry.

Evaluation of modified basalt fiber as biological carrier media for wastewater treatment with the extended DLVO theory model

2019 ◽  
Vol 26 (29) ◽  
pp. 29789-29798
Author(s):  
Xiaoying Zhang ◽  
Jing Wei ◽  
Xiangtong Zhou ◽  
Akihiro Horio ◽  
Shanwei Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Basalt Fiber ◽  
Dlvo Theory ◽  
Theory Model ◽  
Extended Dlvo Theory

Application of Extended DLVO Theory

1993 ◽  
Vol 157 (2) ◽  
pp. 434-441 ◽  
Author(s):  
Hiroki Yotsumoto ◽  
Roe-Hoan Yoon
Keyword(s):  
Dlvo Theory ◽  
Extended Dlvo Theory
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