Destabilization of water-organic dispersions under the influence of an electron beam

Influence of an irradiation on aqueous dispersions of starch, lignin and humic acids has been investigated using monoenergetic and multienergetic electron beams. As shown, coagulation and sedimentation of dispersed solids were initiated in the irradiated samples, however in neutral dispersions the m...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2016-07, Vol.124, p.216-219
Main Authors: Metreveli, P.K., Kholodkova, E.M., Ponomarev, A.V.
Format: Article
Language:English
Subjects:
Beams (radiation)
Coagulation
Deceleration
Dispersions
Electron beams
Humic acids
Hydrogel
Irradiation
Lignin
Sedimentation
Starch
Starches
Suspension
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Summary:Influence of an irradiation on aqueous dispersions of starch, lignin and humic acids has been investigated using monoenergetic and multienergetic electron beams. As shown, coagulation and sedimentation of dispersed solids were initiated in the irradiated samples, however in neutral dispersions the multienergetic beam had a smaller effect compared to a monoenergetic beam. As supposed, the coagulation slowdown effect is caused by formation and repulsion of singlycharged and multiply-charged micelles during electron deceleration and capture directly in the bulk of dispersion. •Electron beaming produces coagulation in aqueous dispersions.•Decelerating the incident electrons in bulk of dispersion aggravates coagulation.•Thin-layer beaming, de-electrifying or acidifying the samples improves coagulation.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2015.09.017