Wastewater treatment with ionizing radiation

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In water treatment by ionizing radiation ·OH is suggested to initiate the degradation of organics. In these reactions mostly carbon centred radicals form. Here we show that other inorganic radicals also highly contribute to the initiation of degradation. Cl and HCO3 in the treated water reacting with ·OH transform to Cl2 ·−and CO3 ·−. In their reactions C-centred radicals form, too. The reactions of eaq and H· water radiolysis intermediates may also produce carbon centred radicals. The C-centred radicals react readily with dissolved O2, this is the starting step of the gradual oxidation.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Radioanalytical and Nuclear Chemistry
DOIs
Publication statusAccepted/In press - May 23 2016

Fingerprint

Ionizing radiation
Waste Water
Ionizing Radiation
Wastewater treatment
Carbon
Degradation
Radiolysis
Water
Water Purification
Water treatment
Oxidation
Hydrogen

Keywords

  • Advanced oxidation processes
  • Hydroxyl radical
  • Pollutant degradation
  • Water purification
  • Water radiolysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Health, Toxicology and Mutagenesis
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging

Cite this

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abstract = "In water treatment by ionizing radiation ·OH is suggested to initiate the degradation of organics. In these reactions mostly carbon centred radicals form. Here we show that other inorganic radicals also highly contribute to the initiation of degradation. Cl− and HCO3 − in the treated water reacting with ·OH transform to Cl2 ·−and CO3 ·−. In their reactions C-centred radicals form, too. The reactions of eaq −and H· water radiolysis intermediates may also produce carbon centred radicals. The C-centred radicals react readily with dissolved O2, this is the starting step of the gradual oxidation.",
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author = "L. Wojn{\'a}rovits and E. Tak{\'a}cs",
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T1 - Wastewater treatment with ionizing radiation

AU - Wojnárovits, L.

AU - Takács, E.

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N2 - In water treatment by ionizing radiation ·OH is suggested to initiate the degradation of organics. In these reactions mostly carbon centred radicals form. Here we show that other inorganic radicals also highly contribute to the initiation of degradation. Cl− and HCO3 − in the treated water reacting with ·OH transform to Cl2 ·−and CO3 ·−. In their reactions C-centred radicals form, too. The reactions of eaq −and H· water radiolysis intermediates may also produce carbon centred radicals. The C-centred radicals react readily with dissolved O2, this is the starting step of the gradual oxidation.

AB - In water treatment by ionizing radiation ·OH is suggested to initiate the degradation of organics. In these reactions mostly carbon centred radicals form. Here we show that other inorganic radicals also highly contribute to the initiation of degradation. Cl− and HCO3 − in the treated water reacting with ·OH transform to Cl2 ·−and CO3 ·−. In their reactions C-centred radicals form, too. The reactions of eaq −and H· water radiolysis intermediates may also produce carbon centred radicals. The C-centred radicals react readily with dissolved O2, this is the starting step of the gradual oxidation.

KW - Advanced oxidation processes

KW - Hydroxyl radical

KW - Pollutant degradation

KW - Water purification

KW - Water radiolysis

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