Performance of tiny microbubbles enhanced with “normal cyclone bubbles” in separation of fine oil-in-water emulsions

Le, Tuan Van; Imai, Tsuyoshi; Higuchi, Takaya; Yamamoto, Kōichi; Sekine, Masahiko; Doi, Ryosuke; Vo, Huy Thanh; Wei, Jie

doi:10.1016/j.ces.2013.02.044

Cited by 34 publications

(11 citation statements)

References 19 publications

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“…When the oil droplets gradually gather to be large enough, they will float on their own buoyancy. The cyclone technique can be used in the coagulation separation method to make oily sewage enter the cylinder along the tangential direction at a high speed along the cylinder wall under pressure, and form a high-speed rotating motion in the cylinder to generate centrifugal force, so that the floating oil and dispersed oil can quickly gather in the center of the cyclone to achieve the separation [18]. At present, most ship oil/water separation equipment adopts a gravity-coagulation combination.…”

Section: Coagulation Separation Methodsmentioning

confidence: 99%

Research Progress and Prospects of Marine Oily Wastewater Treatment: A Review

Han

Jin

Chu³

et al. 2019

Water

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Oily wastewater from shipping waste and marine accidents have seriously polluted the marine environment and brought great harm to human production and health. With the increasing awareness of environmental protection, the treatment of marine oily wastewater has attracted extensive attention from the international community. Marine oily wastewater has various forms and complex components, so its treatment technology faces great challenges. Sources, types, supervision, and treatment of marine oily wastewater are introduced in this paper. The research progress of marine and ship’s oily wastewater treatment technologies in recent years are reviewed from the perspectives of physical treatment, chemical treatment, biological treatment, and combined treatment, respectively. Principles and characteristics of all kinds of technologies were analyzed. In addition, this paper shows that multiple processing technologies used in combination for the purpose of high efficiency, environmental protection, economy, and energy conservation are the future development trend.

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Section: Coagulation Separation Methodsmentioning

confidence: 99%

Research Progress and Prospects of Marine Oily Wastewater Treatment: A Review

Han

Jin

Chu³

et al. 2019

Water

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“…Le et al (Le et al, 2013) evaluated oil flotation efficiency by using a combined macro-micro bubble generation system. Macro bubbles (diameter range between 0.5 mme20 mm) and fine micro-bubbles (diameter ranging from 1 to 16 mm) were produced using a cyclone and micro bubble generating nozzles respectively.…”

Section: Gas Flotation Designmentioning

confidence: 99%

An overview of oil–water separation using gas flotation systems

2016

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“…One of these methods is the study of various inserts, to be installed inside of settling tanks, which have the form of webs, shields and other geometric bodies that increase the velocity of water-oil emulsions stratification into components by changing the flow structure when skirting the obstacles. It should be noted that nowadays the flow rate of water-oil emulsions in settling tanks does not exceed few millimeters per second, since at higher velocities the efficiency of emulsions separation significantly decreases due to the mixing of phases [10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

The experimental study of increasing the efficiency of emulsion separation

et al. 2020

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The aim of this research paper is to compare the operation efficiency of two types of coalescents: insert, made of high porous material and flat baffles. For this purpose, the method of physical experiment was applied. This research paper shows that the use of them in the settling tank allows to increase the efficiency and velocity of water-oil emulsion separation with an increase of oil concentration in the original mixture from 15 up to 25%. The experimental studies also show that the most effective coalescers are the baffles, than the inserts, made of highly porous cellular material, due to the fact that the cells are quickly clogged with heavy oil components, which leads to a more complex flow structure through them, therefore, the process of mixing oil and water compounds is intensified and prevails over the coalescence process. The velocity of oil-water emulsion separation when using the inserts, made of highly porous cellular material, and baffles in comparison with the settling tank without inserts, increases on average by 10.9 and 14.5%.

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Performance of tiny microbubbles enhanced with “normal cyclone bubbles” in separation of fine oil-in-water emulsions

Cited by 34 publications

References 19 publications

Research Progress and Prospects of Marine Oily Wastewater Treatment: A Review

Research Progress and Prospects of Marine Oily Wastewater Treatment: A Review

An overview of oil–water separation using gas flotation systems

The experimental study of increasing the efficiency of emulsion separation

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