Radiation treatment of secondary effluent from a sewage treatment plant

Jinho Jung, Jeong Hyo Yoon, Hung Ho Chung, Myun Joo Lee

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    Radiation treatment using gamma-rays was investigated in order to reclaim the secondary effluent from a sewage treatment plant. The radiation treatment reduced BOD by 85% irrespective of absorbed dose, and the removals of COD, TOC and color were up to 64%, 34% and 88%, respectively, at a dose of 15 kGy. Gamma-rays effectively disinfected microorganisms and completely removed them at a dose of 0.3 kGy. The combination of gamma-rays and titanium dioxide significantly improved the treatment process. The increases of COD, TOC and color removals were 40%, 10% and 20%, respectively. As confirmed by EPR and the spin-trapping method, this increase was partly caused by the increase of hydroxyl radicals in the presence of titanium dioxide.

    Original languageEnglish
    Pages (from-to)533-537
    Number of pages5
    JournalRadiation Physics and Chemistry
    Volume65
    Issue number4-5
    DOIs
    Publication statusPublished - 2002 Nov

    Bibliographical note

    Funding Information:
    We would like to thank Dr. Young-Hwan Cho and Miss Mi-Ran Yoo at KAERI for their help on EPR spectroscopy. This work was supported by the Nuclear R&D Program of MOST, Korea.

    Copyright:
    Copyright 2008 Elsevier B.V., All rights reserved.

    Keywords

    • EPR
    • Gamma-rays
    • Sewage effluent
    • Titanium dioxide

    ASJC Scopus subject areas

    • Radiation

    Fingerprint

    Dive into the research topics of 'Radiation treatment of secondary effluent from a sewage treatment plant'. Together they form a unique fingerprint.

    Cite this