Polymeric flocculants processing by accelerated electron beams and microwave heating

Results obtained by accelerated electron beam, microwave and simultaneous microwave and electron beam application in the chemistry of acrylamide and acrylic acid copolymers (polymeric flocculants used for wastewater treatment) are presented. Comparative results concerning the molecular weight and Hu...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2002-08, Vol.64 (5), p.423-428
Main Authors: Martin, Diana I, Mateescu, Elena, Craciun, Gabriela, Ighigeanu, Daniel, Ighigeanu, Adelina
Format: Article
Language:English
Subjects:
Acrylamide
Acrylic acid
Electron beam
Microwave
Polymeric flocculants
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Summary:Results obtained by accelerated electron beam, microwave and simultaneous microwave and electron beam application in the chemistry of acrylamide and acrylic acid copolymers (polymeric flocculants used for wastewater treatment) are presented. Comparative results concerning the molecular weight and Huggins’ constant for the acrylamide and acrylic acid copolymers obtained by classical heating, microwave heating, electron beam irradiation and simultaneous microwave and electron beam treatment are reported. Microwave heating produces high water solubility of the polymeric flocculants but median molecular weight values. Electron beam irradiation gives high molecular weight values but associated with a cross-linked structure (poor water solubility) while microwave energy addition to electron beam energy gives simultaneously high molecular weight values and high water solubility.
ISSN:0969-806X
1879-0895
DOI:10.1016/S0969-806X(01)00679-X