Biodegradability, toxicity, and photochemical treatment of a textile surfactant

Fatos Germirli Babuna*, Canan Turker, Muge Oguz Cabuk, Tugba Olmez Hanci

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This study investigates the biodegradability, ecotoxicity, and photochemical treatment of a segregated textile bath discharge carrying a commonly applied nonionic surfactant. The wastewater having a total COD of 1,085 mg/L is completely soluble in nature. The COD distribution of this wastewater at different molecular size cut-off levels shows a fluctuating nature. Around 40% of the COD originates from a molecular weight cut-off range less than 30 kDa fraction. The wastewater is observed to contain an initially inert soluble COD of about 20 mg/L and the residual COD level achieved after passing it from aerobic biological treatment is only 40 mg/L indicating high biodegradability. After 120 min of UV-C application similar TOC removal efficiencies of 35 and 42% are obtained at pH 4 and pH 7, respectively. Photochemical treatment does not yield significant TOC removals at pH 11. The raw discharge is highly inhibitory toward Vibrio fischeri. 60 min of UV-C application lowered ecotoxicity toward V. fischeri.

Original languageEnglish
Pages (from-to)26286-26293
Number of pages8
JournalDesalination and Water Treatment
Issue number54
Publication statusPublished - 19 Nov 2016

Bibliographical note

Publisher Copyright:
© 2016 Balaban Desalination Publications. All rights reserved.


  • Ecotoxicity
  • Inert COD
  • Photochemical treatment
  • Surfactant
  • Textile bath discharge


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