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Phase Transformations of Gelling Substances in Irradiated Aqueous Solutions

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Abstract

Pectin, starch, gelatin, and wheat flour in dilute aqueous solutions undergo irreversible aggregation and sedimentation even at absorbed doses lower than 1 kGy. Irradiation narrows the size distribution of suspended particles in solution. It is noted that the effect of irradiation is caused not only by intermolecular crosslinking but also by the electrostatic effect of charged radiolytic intermediates. The decrease in the aggregative stability of gelling substances on the irradiation of their dilute solutions can be used for practical wastewater treatment and for the target-oriented synthesis of aggregates with a specified particle size distribution.

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FUNDING

This work was performed within the framework of state contract no. AAAA-A16-116121410087 using the equipment provided by the Center for Shared Use of Instrumental Investigation Techniques at the Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071, Moscow, Russia

    E. M. Kholodkova, A. I. Kasterin & A. V. Ponomarev

Authors
  1. E. M. Kholodkova
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  2. A. I. Kasterin
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  3. A. V. Ponomarev
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Corresponding author

Correspondence to E. M. Kholodkova.

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Translated by V. Makhlyarchuk

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Kholodkova, E.M., Kasterin, A.I. & Ponomarev, A.V. Phase Transformations of Gelling Substances in Irradiated Aqueous Solutions. High Energy Chem 53, 309–313 (2019). https://doi.org/10.1134/S0018143919040064

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  • DOI: https://doi.org/10.1134/S0018143919040064

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