Influence of air bubble flow structure on the rate of water purification by the bubble-film extraction method | Zendy

V. S. Gevod | Zendy; Иван Александрович Борисов | Zendy

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Influence of air bubble flow structure on the rate of water purification by the bubble-film extraction method

Author(s) -

V. S. Gevod,

Иван Александрович Борисов

Publication year - 2019

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2019.112

Subject(s) - bubble , mechanics , extraction (chemistry) , materials science , airflow , adsorption , capillary action , volumetric flow rate , air bubble , pulmonary surfactant , extractor , chemistry , chromatography , thermodynamics , composite material , process engineering , physics , engineering , organic chemistry

Bubble-film extraction (upgraded bubble flotation) is one of the modern methods for purifying contaminated water from surface-active impurities. The features of this method have been considered from the standpoints of the equilibrium and dynamics of surfactant accumulation on floated air bubbles with different sizes. Within a certain ratio of dimension and quantity of air bubbles in their stream transferring adsorbed surfactants from the water bulk into the bubble-film extractor, the productivity of the process increases many times. The effect is ensured by a collective fusion of big and small air bubbles in their close-packed state (embedded system) inside the bubble-film extractor. The driving forces are impulses of capillary waves initiated at the bursting of big air bubbles as constituent ‘destructive’ units of that system.

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