The effect of electron irradiation on aqueous dispersions of humic acids and lignin

Makarov, Igor; Metreveli, P. K.; Metreveli, A. K.; Пономарев, А. В.

doi:10.1016/j.radphyschem.2013.10.010

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…In particular, this is due to the high probability of dimerization and oligomerization processes involving organic radicals. In addition, radiolytic processes alter the stability of colloidal particles and cause condensation of unsaturated organic compounds. ,,,− The aggregation of dispersed particles (both charged and neutral) can be caused by their recharging due to radiolytic protonation or deprotonation as well as due to the capture of excess thermalized electrons. Such processes can significantly improve the sedimentation of suspensions and the filterability of sediments.…”

Section: Combined Application Of Treatment Methodsmentioning

confidence: 99%

The Green Method in Water Management: Electron Beam Treatment

Пономарев

Ершов

2020

Environ. Sci. Technol.

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During the prebiotic era, radiolytic transformations in the oceans played a key role in purifying water from toxic impurities and, thus, played a role in the formation of the aquatic environment of our planet, making it suitable for the emergence of life. Today, the planet again faces the challenge of how to provide people with clean water. Therefore, it is reasonable to look back at past historical stages and again consider the possibility of neutralizing pollutants in water by means of radiolysis, which has already been tested by time. Modern radiolytic treatments can be much faster and safer thanks to the advent of powerful electron accelerators and high-rate electron beam treatment (ELT) of water and wastewater. Radiolytic treatment of water using accelerated electrons corresponds to the essence of advanced oxidative technologies and green chemistry. The ELT of water instantly generates a high concentration of short-lived radicals that can quickly neutralize and decompose chemical and bacterial pollutants. Due to the ability of accelerated electrons to penetrate into a substance, ELT provides the decomposition of both dissolved and suspended pollutants. The cleaning effect of ELT is due to the ability to inactivate toxic and chromophore functional groups, transform impurities into an easily removable form, damage the DNA of microorganisms and their spore forms, and increase the biodegradability of organic impurities. The use of ELT in water treatment provides significant savings in chemical reagents, thereby improving quality and reducing the number of cleaning steps. The compactness, high degree of automation of the equipment used, energy efficiency, high productivity, and excellent compatibility with traditional water treatment methods are important advantages of ELT. Unlike conventional chemicals, the excess radicals generated in the ELT process are converted back to water and hydrogen; thus, the chemical and corrosive activity of water does not increase. Equipping research institutes with electron accelerators, developing cheaper accelerators, and granting government support for pilot projects are key conditions for introducing ELT into water treatment practice.

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Section: Combined Application Of Treatment Methodsmentioning

confidence: 99%

The Green Method in Water Management: Electron Beam Treatment

Пономарев

Ершов

2020

Environ. Sci. Technol.

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“…Therefore, stationary concentration of uncompensated negative charge during irradiation may be sufficiently high to have an influence on coagulation process by stabilizing negative micelles. It was observed recently [51] in experiments concerning coagulation of humic acids and lignin in aqueous dispersions.…”

Section: Processes Of Micelles Recharging In Aqueous Dispersionsmentioning

confidence: 81%

Radiation-Induced Degradation of Organic Compounds and Radiation Technologies for Purification of Aqueous Systems

Makarov¹,

Пономарев²

2018

Ionizing Radiation Effects and Applications

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Environmental application of radiation technologies is an important part of radiation processing. Radiation treatment of aqueous systems contaminated with organic compounds is a promising method of water and wastewater purification and corresponding technologies are being developed. In this chapter, the following aspects of radiation treatment process are considered: sources of contamination and major contaminants of water and wastewater; primary processes in aqueous systems initiated by ionizing radiation; principal ways of contaminant conversion as consequences of primary processes (complete mineralization of organic compounds, partial decomposition of organic molecules resulted in detoxification, decolorization, disinfection of polluted water, and improvement in biological degradation of contaminant, polymerization of monomers' contaminants, oxidation-reduction processes, and coagulation of colloids); sources of ionizing radiation; and main equipment applied in radiation technologies of aqueous system purification.

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Effect of Co60 irradiation on the degradation and mineralization of sulfonated aromatic compounds in aqueous solutions

Alkhuraiji

2019

Chemosphere

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The effect of electron irradiation on aqueous dispersions of humic acids and lignin

Cited by 6 publications

References 5 publications

The Green Method in Water Management: Electron Beam Treatment

The Green Method in Water Management: Electron Beam Treatment

Radiation-Induced Degradation of Organic Compounds and Radiation Technologies for Purification of Aqueous Systems

Effect of Co60 irradiation on the degradation and mineralization of sulfonated aromatic compounds in aqueous solutions

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