Abstract

The aim of this paper is to determine the ozone dosages needed to oxidize bulk and trace organics. Treated effluent from eight full-scale wastewater treatment plants was collected and subjected to lab-scale ozonation. Because both organics and inorganics exert ozone demand, an approach was developed to calculate only the ozone demand associated with organics. This method allowed normalization of dosing parameters to correlate with removal of color, UV absorbance, plus oxidation of trace organics and nitrosamine precursors. We also showed that ozonation effectively reduces the fraction of organic matter characterized as "colloidal organic matter," thereby reducing the potential for membrane fouling.

Original languageEnglish (US)
Pages (from-to)26-31
Number of pages6
JournalOzone: Science and Engineering
Volume34
Issue number1
DOIs
StatePublished - Jan 2012

Fingerprint

Ozonization
Ozone
Wastewater
ozone
wastewater
Biological materials
Nitrosamines
organic matter
Membrane fouling
absorbance
fouling
Wastewater treatment
Effluents
effluent
membrane
Color
oxidation
Oxidation
ozonation
demand

Keywords

  • Ammonia
  • Effluent Organic Matter
  • Nitrite
  • Nitrosodimethylamine
  • Ozone
  • Trace Organics

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Engineering

Cite this

Transformation in Bulk and Trace Organics during Ozonation of Wastewater. / Sharif, Fariya; Wang, Jun; Westerhoff, Paul.

In: Ozone: Science and Engineering, Vol. 34, No. 1, 01.2012, p. 26-31.

Research output: Contribution to journalArticle

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