The degradation of organic dyes by corona discharge Metadata

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Title

  • Main Title The degradation of organic dyes by corona discharge

Creator

  • Author: Goheen, S.C.
    Creator Type: Personal
  • Author: McCulloch, M.
    Creator Type: Personal
  • Author: Durham, D.E.
    Creator Type: Personal
  • Author: Heath, W.O.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: DOE; USDOE, Washington, DC (United States)

Publisher

  • Name: Pacific Northwest Laboratory
    Place of Publication: Richland, Washington

Date

  • Creation: 1992-02-01

Language

  • English

Description

  • Content Description: Several dyes in water were individually exposed to corona discharge. Light absorbance decreased for all organic dyes with time. Absorbance losses with methylene blue, malachite green, and new coccine were studied. The loss of color was followed using an in situ colorimeter and the effects of varying the current, voltage, gas phase, stirring rates, salinity, and electrode spacing were investigated. The highest reaction rates were observed using the highest current, highest voltage (up to 10kV), highest stirring rate, lowest salinity, smallest electrode spacing, and an environment containing enhanced levels of oxygen. Current was higher in the presence of nitrogen than in the presence of oxygen (for the same voltage), but the reaction of methylene blue did not proceed unless oxygen was present. These results help identify conditions using corona discharge in which dyes, and potentially other organics, can be destroyed. 22 refs., 5 figs.
  • Physical Description: Pages: (14 p)

Subject

  • Keyword: Elements
  • Keyword: Chemical Reactions
  • Keyword: Amines
  • Keyword: Organic Compounds
  • Keyword: Drugs
  • Keyword: Electric Discharges
  • Keyword: Superoxide Radicals
  • Keyword: Methylene Blue
  • STI Subject Categories: 400600 -- Radiation Chemistry
  • Keyword: Chlorides
  • Keyword: Absorption Spectroscopy
  • Keyword: Corona Discharges
  • STI Subject Categories: 38 Radiation Chemistry, Radiochemistry, And Nuclear Chemistry
  • Keyword: Dyes
  • Keyword: Organic Sulfur Compounds
  • Keyword: Azines
  • Keyword: Oxygen
  • Keyword: Phenothiazines
  • Keyword: Halogen Compounds
  • Keyword: Heterocyclic Compounds
  • Keyword: Chlorine Compounds
  • Keyword: Radicals
  • Keyword: Halides
  • Keyword: Antimicrobial Agents
  • Keyword: Organic Nitrogen Compounds
  • Keyword: Nonmetals
  • STI Subject Categories: 32 Energy Conservation, Consumption, And Utilization
  • Keyword: Decomposition
  • Keyword: Anti-Infective Agents
  • Keyword: Spectroscopy 320305* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management

Source

  • Conference: Chemical oxidation technology for the nineties symposium, Nashville, TN (United States), 19-21 Feb 1992

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE92010865
  • Report No.: PNL-SA-19718
  • Report No.: CONF-920272--2
  • Grant Number: AC06-76RL01830
  • Office of Scientific & Technical Information Report Number: 5706027
  • Archival Resource Key: ark:/67531/metadc1092124

Note

  • Display Note: OSTI; NTIS; GPO Dep.